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  • {{#category_index:F|F}} ...es the storage of one coulomb. (See [[Special:MyLanguage/Dictionary:farad_(F)|''farad'']]).
    274 bytes (37 words) - 07:54, 18 April 2017
  • {{#category_index:F|farad (F)}}
    292 bytes (39 words) - 08:15, 18 April 2017
  • {{DISPLAYTITLE:''f-k'' analysis|noreplace}} {{#category_index:F|''f-k'' analysis}}
    191 bytes (22 words) - 13:59, 13 June 2017
  • ...-k''</b> <b>plots</b> (see Figure [[Special:MyLanguage/Dictionary:Fig_F-11|F-11]]) in which energy density within a given time interval is contoured on FIG. F-11.
    1 KB (206 words) - 11:29, 11 June 2019
  • {{DISPLAYTITLE:''f-k'' filtering|noreplace}} {{#category_index:F|''f-k'' filtering}}
    403 bytes (47 words) - 13:55, 13 June 2017
  • {{DISPLAYTITLE:''f-k'' migration|noreplace}} {{#category_index:F|''f-k'' migration}}
    918 bytes (96 words) - 13:49, 13 June 2017
  • See [[Special:MyLanguage/Dictionary:f-k_domain|''f-k'' ''domain'']].
    116 bytes (13 words) - 15:54, 28 November 2020
  • {{#category_index:F|F-layer}} ...usually 175 to 250 km high and is found only during daylight. The higher ''F''<sub>2</sub> layer at 250 to 400 km is present both night and day and is t
    712 bytes (114 words) - 08:38, 4 July 2019
  • {{#category_index:P|probability functions, ''F''(''x'')}}
    193 bytes (22 words) - 11:00, 16 March 2020
  • FIG. F-1.
    651 bytes (104 words) - 16:36, 20 December 2011
  • FIG. F-10.
    590 bytes (97 words) - 16:36, 20 December 2011
  • FIG. F-11. .../''k''=&#x03C9;/&#x03BA;). (<b>b</b>) Data beyond the Nyquist wavenumber ''f''<sub>''N''</sub> (determined by discrete spatial sampling) <b>wraps around
    649 bytes (110 words) - 12:00, 12 April 2012
  • FIG. F-12.
    273 bytes (42 words) - 16:36, 20 December 2011
  • FIG. F-13.
    634 bytes (109 words) - 16:36, 20 December 2011
  • FIG. F-14. ...'+''M''</sub>), where ''Z''<sub>''i''</sub>=&#x03A3;''G''<sub>''k''</sub>''F''<sub>''i''&#x2013;''k''</sub>.
    499 bytes (81 words) - 16:36, 20 December 2011
  • ...and negative flowers at different places (see Figure [[Dictionary:Fig_F-4|F-4]]). (From Lowell, 1985, 63.)
    522 bytes (78 words) - 16:36, 20 December 2011
  • FIG. F-16.
    754 bytes (124 words) - 16:36, 20 December 2011
  • FIG. F-17.
    964 bytes (168 words) - 16:36, 20 December 2011
  • ...ts for a waveform. The frequency-domain representation or spectrum ''G''(''f'') of a discrete time function ''g''<sub>''t''</sub> (waveform, seismic rec ...ath> constitute a Fourier-transform pair; see Figure [[Dictionary:Fig_F-19|F-19]].
    1 KB (256 words) - 08:07, 9 April 2016
  • FIG. F-19. ...re neither odd nor even involve variations of phase with frequency. Note ''f''=1/''t''.
    496 bytes (82 words) - 16:37, 20 December 2011
  • FIG. F-2.
    64 bytes (10 words) - 16:37, 20 December 2011
  • FIG. F-20. ...ta. Note: ''g''(''t'')&#x2194;''G''(''f'') and ''h''(''t'')&#x2194;''H''(''f'').
    270 bytes (42 words) - 16:37, 20 December 2011
  • FIG. F-21.
    110 bytes (14 words) - 16:37, 20 December 2011
  • FIG. F-22.
    74 bytes (11 words) - 16:37, 20 December 2011
  • FIG. F-23.
    214 bytes (37 words) - 16:37, 20 December 2011
  • FIG. F-24.
    174 bytes (29 words) - 16:37, 20 December 2011
  • FIG. F-25.
    672 bytes (111 words) - 16:37, 20 December 2011
  • FIG. F-26.
    354 bytes (60 words) - 16:37, 20 December 2011
  • FIG. F-3.
    57 bytes (10 words) - 16:37, 20 December 2011
  • ...divergence may produce flower structures (see Figure [[Dictionary:Fig_F-12|F-12]]). (From Sheriff and Geldart, 1995, 369&#x2013;370.) (<b>g</b>) Transit
    928 bytes (141 words) - 16:38, 3 October 2016
  • FIG. F-5. A <b>fault slice</b> is made by slicing a 3D volume parallel to a picked
    392 bytes (63 words) - 16:37, 20 December 2011
  • FIG. F-6. <b>Feathering</b> of a marine streamer. See also Figure [[Dictionary:Fig
    120 bytes (20 words) - 16:37, 20 December 2011
  • FIG. F-7.
    447 bytes (73 words) - 16:37, 20 December 2011
  • FIG. F-8.
    121 bytes (17 words) - 13:31, 4 March 2018
  • FIG. F-9.
    89 bytes (14 words) - 16:37, 20 December 2011
  • {{#category_index:Dictionary|F}} {{#category_index_get:list_values|F}}
    113 bytes (15 words) - 16:39, 20 December 2011
  • 27 bytes (3 words) - 14:04, 17 October 2016
  • 28 bytes (3 words) - 13:40, 20 November 2013
  • 29 bytes (3 words) - 14:24, 17 October 2016
  • 23 bytes (3 words) - 14:23, 17 October 2016
  • 25 bytes (3 words) - 13:32, 17 October 2016
  • | image = [[File:F._A._Van_Melle_headshot.png|180px]] '' by F. A. Van Melle''
    10 KB (1,702 words) - 12:23, 1 August 2014
  • 28 bytes (3 words) - 11:32, 18 October 2016
  • #REDIRECT [[Ben F. Giles]]
    26 bytes (4 words) - 18:21, 20 January 2014
  • #REDIRECT [[O. F. Ritzmann]]
    28 bytes (4 words) - 13:25, 22 January 2014
  • 25 bytes (3 words) - 11:30, 18 October 2016
  • #REDIRECT [[Benjamin F. Rummerfield]]
    37 bytes (4 words) - 17:31, 7 February 2014
  • #REDIRECT [[Benjamin F. Rummerfield]]
    37 bytes (4 words) - 12:43, 18 February 2014
  • #REDIRECT [[Gordon F. West]]
    28 bytes (4 words) - 12:41, 25 February 2014
  • '''J. F. Tessis (1933-1997)'''
    4 KB (617 words) - 11:26, 7 April 2015
  • 26 bytes (3 words) - 10:54, 26 March 2014
  • 28 bytes (3 words) - 14:21, 17 October 2016
  • 26 bytes (3 words) - 15:26, 17 October 2016
  • {{#category_index:F|F}}
    185 bytes (5 words) - 08:27, 4 July 2019
  • {{#category_index:F|F}} ...es the storage of one coulomb. (See [[Special:MyLanguage/Dictionary:farad_(F)|''farad'']]).
    212 bytes (31 words) - 07:54, 18 April 2017
  • {{#category_index:F|farad (F)}}
    233 bytes (33 words) - 08:15, 18 April 2017
  • {{#category_index:F|F}}
    216 bytes (31 words) - 10:46, 19 April 2017
  • {{DISPLAYTITLE:''f-k'' analysis|noreplace}} {{#category_index:F|''f-k'' analysis}}
    156 bytes (18 words) - 12:53, 15 September 2017
  • {{DISPLAYTITLE:''f-k'' filtering|noreplace}} {{#category_index:F|''f-k'' filtering}}
    1 KB (196 words) - 16:33, 29 November 2020
  • {{DISPLAYTITLE:''f-k'' migration|noreplace}} {{#category_index:F|''f-k'' migration}}
    847 bytes (88 words) - 13:50, 13 June 2017
  • See [[Special:MyLanguage/Dictionary:f-k_domain|''f-k'' ''domain'']].
    81 bytes (9 words) - 15:56, 28 November 2020
  • {{DISPLAYTITLE:''f-k'' migration|noreplace}} {{#category_index:F|Migración ''f-k''}}
    859 bytes (94 words) - 16:33, 29 November 2020
  • Ver [[Special:MyLanguage/Dictionary:f-k_domain|''dominio f-k'']].
    78 bytes (9 words) - 15:55, 28 November 2020
  • {{DISPLAYTITLE:''f-k'' analysis|noreplace}} {{#category_index:F|''f-k'' analysis}}
    156 bytes (18 words) - 13:59, 13 June 2017
  • {{DISPLAYTITLE:''f-k'' analysis|noreplace}} Ver [[Special:MyLanguage/Dictionary:f-k_domain|dominio f-k]].
    118 bytes (13 words) - 14:00, 13 June 2017
  • {{DISPLAYTITLE:Dictionary:''f-k'' domain}} {{#category_index:F|''f-k'' domain}}
    1 KB (207 words) - 08:49, 23 February 2017
  • {{DISPLAYTITLE:Dominio F-k|noerror}} {{#category_index:D|dominio F-k}}
    1 KB (271 words) - 16:34, 29 November 2020
  • {{DISPLAYTITLE:''f-k'' filtering|noreplace}} {{#category_index:F|''f-k'' filtering}}
    344 bytes (41 words) - 09:00, 10 May 2019
  • 25 bytes (3 words) - 14:05, 17 October 2016
  • 28 bytes (3 words) - 14:28, 17 October 2016
  • 32 bytes (3 words) - 14:41, 17 October 2016
  • 29 bytes (3 words) - 14:44, 17 October 2016
  • 26 bytes (3 words) - 14:58, 17 October 2016
  • 27 bytes (3 words) - 14:58, 17 October 2016
  • 27 bytes (3 words) - 15:01, 17 October 2016
  • 27 bytes (3 words) - 15:21, 17 October 2016
  • 34 bytes (3 words) - 15:25, 17 October 2016
  • 25 bytes (3 words) - 11:38, 18 October 2016
  • 39 bytes (5 words) - 13:21, 17 October 2016
  • FIG. F-8.
    76 bytes (12 words) - 13:39, 4 March 2018
  • FIG. F-8.
    74 bytes (11 words) - 10:19, 28 March 2018
  • {{#category_index:F|F-layer}} ...a de 175 a 250 km y se encuentra solo durante el día. La capa más alta ''F''<sub>2</sub>
    1 KB (244 words) - 12:54, 22 June 2021
  • ...nto de un culombio. Llamado así en honor a Michael Faraday (1791–1867), físico inglés.
    264 bytes (39 words) - 13:05, 22 June 2021
  • {{#category_index:P|probability functions, ''F''(''x'')}} FIG. P-13. Funciones de probabilidad, F(x).
    161 bytes (22 words) - 08:47, 31 May 2020
  • {{#category_index:P|probability functions, ''F''(''x'')}}
    131 bytes (16 words) - 11:00, 16 March 2020
  • {{DISPLAYTITLE:''f-k'' filtering|noreplace}}
    162 bytes (6 words) - 09:15, 10 May 2019
  • {{DISPLAYTITLE:''f-k'' analysis|noreplace}}
    76 bytes (6 words) - 11:24, 11 June 2019
  • ...了交叉阴影。通过原点的径向线表示恒定的视速度 Va (Va=f/k=ω/κ). (b) 超过尼奎斯特波数fN(由离散空间采样决定)外的
    804 bytes (23 words) - 11:56, 11 June 2019
  • {{DISPLAYTITLE:''f-k'' migration|noreplace}} {{#category_index:F|''f-k'' migration}}
    868 bytes (71 words) - 17:22, 17 June 2019
  • 38 bytes (2 words) - 15:55, 28 November 2020
  • {{#category_index:F|F-layer}} ...usually 175 to 250 km high and is found only during daylight. The higher ''F''<sub>2</sub> layer at 250 to 400 km is present both night and day and is t
    650 bytes (108 words) - 08:39, 4 July 2019
  • {{#category_index:F|F-layer}}
    581 bytes (30 words) - 13:11, 30 July 2019
  • {{#category_index:F|F-layer}} ...usually 175 to 250 km high and is found only during daylight. The higher ''F''<sub>2</sub> layer at 250 to 400 km is present both night and day and is t
    650 bytes (108 words) - 13:33, 22 July 2019
  • {{#category_index:F|F-layer}}
    575 bytes (30 words) - 13:11, 30 July 2019
  • ...and displacement domain, is converted into the frequency and wave number (F-k) domain as seen in [[:File:Fk domain.png|figure 1]] below. The [[Seismic ...nal and to be removed from the record. To accomplish this you can use the F-k, or pie slice, filter in which the range of apparent velocities can be se
    6 KB (961 words) - 16:49, 4 December 2019
  • |Item=Blaster Model "F"
    406 bytes (56 words) - 11:00, 1 November 2019
  • |Item=Geophone Type G3 F
    426 bytes (61 words) - 11:19, 1 November 2019
  • |Item=Geophone Type G3 F
    418 bytes (61 words) - 11:33, 1 November 2019
  • |Item=Connector Scorpio SC 28M/F "Y"
    372 bytes (55 words) - 11:57, 1 November 2019
  • 166 bytes (4 words) - 09:15, 10 November 2019
  • ...''b''. Determine this frequency for the following beds. [Note: <math>V = \;f\lambda </math>.]
    8 KB (992 words) - 13:49, 3 May 2021
  • ...''b''. Determine this frequency for the following beds. [Note: <math>V = \;f\lambda </math>.]
    7 KB (914 words) - 13:49, 3 May 2021
  • ...''b''. Determine this frequency for the following beds. [Note: <math>V = \;f\lambda </math>.]
    7 KB (922 words) - 16:43, 7 May 2021

Page text matches

  • ...E</math> = energy lost in one cycle, <math>\lambda</math> = wavelength, ''f'' = frequency, ''x'' = distance, ''t'' = time, <math>\frac{A}{A_{0}} = \fra
    2 KB (240 words) - 11:39, 17 October 2016
  • ...</b>) <b>Pulse-width modulation</b> (PWM); the width of pulses varies. (<b>f</b>) <b>Pulse-spacing modulation</b>; the timing of pulses varies. See also
    980 bytes (152 words) - 11:31, 8 December 2017
  • (&#x2202;&#x2019; f&#x012B;n) Denoting the relation between local grid coordinates and absolute
    224 bytes (28 words) - 15:04, 23 January 2018
  • (af mag&#x2019;) <b>A</b>udio-<b>F</b>requency <b>MAG</b>netic technique, the use of natural electromagnetic n
    750 bytes (109 words) - 12:35, 17 October 2016
  • ...velocity of sound: ''V''&#x2248;1051+1.1&#x0020;''F''&#x0020;ft/s, where ''F''=Fahrenheit temperature, or ''V''&#x2248;331.5+0.607&#x0020;''C''&#x0020;m
    480 bytes (69 words) - 12:22, 17 October 2016
  • .../''k''=&#x03C9;/&#x03BA;). (<b>b</b>) Data beyond the Nyquist wavenumber ''f''<sub>''N''</sub> (determined by discrete spatial sampling) <b>wraps around ...f''<sub>''N''</sub> + &Delta;''f'' and ''f''<sub>''N''</sub> – &Delta;''f'', are ''aliases'' of each other. [[File:Sega8.jpg|left|thumb|300px|FIG. A-
    4 KB (611 words) - 17:32, 26 February 2018
  • ...h attenuation above the Nyquist frequency; see Figure [[Dictionary:Fig_F-9|F-9]]. Also called <b>antialias filter</b>.
    548 bytes (81 words) - 12:58, 17 October 2016
  • (al f&#x2202; m&#x2202;r&#x2019; ik) [[Special:MyLanguage/Dictionary:alphanumeric
    228 bytes (27 words) - 18:02, 26 February 2018
  • (al f&#x2202; nu&#x2019; m&#x2202;r, ik) Pertaining to a character set containing
    244 bytes (32 words) - 17:57, 26 February 2018
  • (&#x2202;&#x2019; mor f&#x2202;s) Lacking crystal structure.
    179 bytes (21 words) - 14:20, 14 March 2018
  • ...nds: Geophysics, 54, 680–688.</ref>, and Hilterman (2001)<ref>Hilterman, F. J., 2001, Seismic amplitude interpretation. SEG-EAEG Distinguished Instruc
    3 KB (408 words) - 16:24, 8 September 2020
  • '''1'''. For a signal such as ''f''(''t''), see [[Special:MyLanguage/Dictionary:Hilbert_transform|''Hilbert t '''2'''. The analytic signal <b>A</b> of a potential field <b>F</b> is
    1 KB (201 words) - 14:39, 9 April 2018
  • A mixture of <b>A</b>mmonium <b>N</b>itrate and <b>F</b>uel <b>O</b>il used as an explosive.
    169 bytes (34 words) - 13:31, 17 October 2016
  • ...f''=frequency in Hz, the angular frequency &#x03C9; is &#x03C9;=2&#x03C0;''f''.
    253 bytes (35 words) - 22:21, 3 January 2018
  • ...n without the rotation. See Figure [[Special:MyLanguage/Dictionary:Fig_F-5|F-5]].
    506 bytes (77 words) - 09:31, 4 March 2018
  • <center><math>\rho_\mathrm{a} = \frac{\rho_\mathrm{HS} F(V)}{F(V_\mathrm{HS})} </math></center> where &#x03C1;<sub>''HS''</sub>=resistivity of a homogeneous half-space, ''F'' is a function of ''V''=observed voltage, and ''V''<sub>''HS''</sub>=volta
    3 KB (368 words) - 14:38, 11 March 2018
  • ...ode or halfway between the two poles. Also called a <b>half-Wenner array. (f) Radial array</b>; see [[Special:MyLanguage/Dictionary:azimuthal_survey|''a
    4 KB (586 words) - 18:58, 14 December 2017
  • ...; (<b>c</b>) cross; (<b>d</b>) 3&#x00D7;3 diamond; (<b>e</b>) X-array; (<b>f</b>) rectangular array; (<b>g</b>) crow&#x2019;s-foot array; (<b>h</b>) odd
    3 KB (430 words) - 18:19, 6 June 2020
  • ...E</math> = energy lost in one cycle, <math>\lambda</math> = wavelength, ''f'' = frequency, ''x'' = distance, ''t'' = time, <math>\frac{A}{A_{0}} = \fra
    2 KB (217 words) - 13:15, 6 February 2018
  • ...|issue=10|year=1995|pages=1053–1058|doi=10.1190/1.1437077}}</ref>. (<b>e,f</b>) Horizon slices illuminated in different directions; the direction of i
    7 KB (961 words) - 15:01, 6 February 2018
  • ...aystyle \int^{t_2}_{t_1} f(t) f(t+\tau) dt }{\displaystyle\int^{t_2}_{t_1} f^2(t)dt} </math>,</center> where ''f''(''t'') represents a waveform (or seismic trace) and <math> \tau </math> i
    2 KB (257 words) - 02:06, 25 December 2017
  • ...02;ns) Similar to an autocorrelation except that the mean value <math>\bar{f} </math> is subtracted before the integration, and normalization is not don ...ter><math>\int^{t_2}_{t_1} \left[ f(t) - \bar{f}\right]\left[(t-\tau)-\bar{f}\right] dt</math> .</center>
    582 bytes (92 words) - 02:42, 25 December 2017
  • ...alled <b>ab plane</b>. See Figure [[Special:MyLanguage/Dictionary:Fig_F-17|F-17]]. [[File:Segf17.jpg|thumb|center}FIG. F-17. <b>Folding</b>. (<b>a</b>) The <b>plunge</b> of an anticline is the ang
    1 KB (227 words) - 20:55, 3 January 2018
  • <center><math>\int_{0}^{\infty}\frac{p(f)df}{p_{max}} ;</math></center> where <math>p\left ( f \right )</math> is the power at the frequency <math>f</math> and <math>p_{max}</math> is the maximum power. It is the width of a
    939 bytes (153 words) - 23:09, 30 January 2017
  • ...nt foliation surfaces. See Figure [[Special:MyLanguage/Dictionary:Fig_F-17|F-17]].
    408 bytes (55 words) - 10:40, 10 March 2020
  • ...volved in earthquakes. See Figure [[Special:MyLanguage/Dictionary:Fig_F-10|F-10]].
    429 bytes (51 words) - 13:34, 16 November 2017
  • (b&#x014D;&#x2019; f&#x2202;rt) A numerical scale indicating wind speed. See Figure [[Special:My
    411 bytes (52 words) - 09:48, 15 December 2017
  • <center><math> F(x,y)= \sum^{3}_{i=0}\sum^{3}_{j=0} c_{ij} x^i y^j</math> </center>
    432 bytes (68 words) - 10:22, 24 March 2017
  • ...hould be smaller than ''V''/(4''f''sin&#x03B8;) where ''V'' is velocity, ''f'' is dominant frequency, and &#x03B8; is the apparent dip.
    601 bytes (96 words) - 11:06, 24 March 2017
  • ..., b'' are constants. Named for [[Special:MyLanguage/Albert F. Birch|Albert F. Birch]] (1903-1992), American geophysicist.
    669 bytes (100 words) - 10:46, 10 March 2020
  • An ''f-k'' (velocity) filter that rejects a prescribed band of apparent velocities
    362 bytes (48 words) - 22:11, 14 May 2017
  • ...cage. See ''Flexotir'' and Figure [[Special:MyLanguage/Dictionary:Fig_F-13|F-13]].
    438 bytes (61 words) - 15:38, 29 January 2017
  • <center><math>X_c=\frac{1}{2\pi f C}</math>,</center> where ''f'' is frequency in hertz, ''C'' is capacitance in farads and ''X''<sub>C</su
    992 bytes (117 words) - 21:14, 27 February 2017
  • ...ontour ''C'' can be expressed in terms of a line integral along ''C'' if ''f''(''z'') is a continuous analytic function: <center><math>f(a)=\frac {1}{2\pi i} \oint \frac {f(z)}{z-z_0}dz </math>.</center>
    587 bytes (85 words) - 18:46, 15 April 2017
  • <center> <math> F(\omega) = \int_0^\infty f(t) e^{i \omega t } \; dt </math> </center> <center> <math> f(t) = \int_{-\infty}^\infty F(\omega) e^{-i \omega t } \; dt. </math> </center>
    8 KB (1,347 words) - 16:34, 26 September 2019
  • ...rade</b>. If ''T''<sub>''C''</sub>, ''T''<sub>''K''</sub>, and ''T''<sub>''F''</sub> are Celsius, Kelvin, and Fahrenheit temperatures, respectively,
    578 bytes (87 words) - 18:49, 15 April 2017
  • <b>C</b>ommon <b>F</b>ocusing <b>P</b>oint, involved in imaging. See common-image point.
    188 bytes (29 words) - 10:26, 11 July 2017
  • ...ance. The chi-square test is a statistical test of data distribution. If ''f''<sub>''i''</sub> are observed, frequencies of occurrence and ''e''<sub>''i
    869 bytes (139 words) - 10:37, 28 November 2017
  • Angular frequency &#x03C9;=2&#x03C0;''f'', where ''f''=ordinary frequency.
    202 bytes (24 words) - 12:56, 28 November 2017
  • <center><math>\text{comb}(t)\leftrightarrow\text{comb}(f) </math>,</center> ...uage/Dictionary:Fig_C-8|C-8]] and [[Special:MyLanguage/Dictionary:Fig_F-19|F-19]].
    1 KB (188 words) - 14:27, 11 April 2017
  • ...the field of complex numbers to the field of complex numbers, then <math> f(z) </math> must, itself be the sum of a purely real valued function <math> <center> <math> f(z) = u(x,y) + i v(x,y). </math> </center>
    7 KB (1,124 words) - 00:09, 21 March 2020
  • ...lex number representation <math> F(t)</math> of a real time-series <math> f(t)</math>: <center><math>F(t)= f(t)+ i f_{\perp}(t)=A(t)e^{i \phi(t)} </math>,</center>
    6 KB (1,026 words) - 09:43, 10 August 2017
  • ...mputer program is shown in Figure [[Special:MyLanguage/Dictionary:Fig_F-14|F-14]]. <b>3</b>. An <b>analog computer</b> uses a physical analogy of positi
    749 bytes (107 words) - 17:07, 4 June 2017
  • Any 2D function <math> F(z) </math> may be written in terms of orthogonal conjugate functions <math> <center><math>F(z)=F(x+jy)=\phi(x,y)+j\psi(x,y) </math>.</center>
    354 bytes (58 words) - 18:00, 23 July 2017
  • ...', ''F''(''x'',''y'',''z''), can be found from the field on the surface, ''F''(''x'' ', ''y'' ',0). Where the surfaces are horizontal and no sources int <center><math>F(x,y,z)=\frac{\left|z\right|}{2\pi}\iint \frac{F(x',y',0}{R^3}dx' dy' </math>.</center>
    920 bytes (132 words) - 10:11, 20 August 2017
  • '''1'''. A mathematical operation between two functions, ''g''(''t'') and ''f''(''t''), often symbolized by an asterisk: <center><math>g(t)\ast f(t)=\int_\tau g(\tau)f(t-\tau)d\tau </math>.</center>
    3 KB (461 words) - 10:57, 4 December 2017
  • The concept that a seismic trace ''f''(''t'') can be represented by the convolution of an embedded (equivalent) <center><math>f(t)=w(t)\ast r(t)+n(t) </math></center>
    863 bytes (134 words) - 12:52, 4 December 2017
  • ...ge/Dictionary:Fig_F-20|F-20]] and [[Special:MyLanguage/Dictionary:Fig_F-22|F-22]]. The process of convolution of two functions <math> f(t)</math> and <math> g(t) </math> is defined in one dimension, as
    6 KB (1,039 words) - 09:27, 20 June 2017
  • A force ''F'' exists between electrical charges ''Q''<sub>1</sub> and ''Q''<sub>2</sub> <center><math>F=\frac{kQ_1 Q_2 }{r^2} = \frac{Q_1 Q_2}{4 \pi \varepsilon r^2 } </math></cen
    532 bytes (82 words) - 10:22, 20 April 2021
  • ...r><math> \phi_{12}(\tau) \leftrightarrow \overline{G_1(f)}G_2(f)=\Phi_{12}(f)</math>, </center> ...s-energy spectrum</b>. See Figure [[Special:MyLanguage/Dictionary:Fig_F-22|F-22]] and Sheriff and Geldart (1995, 285, 538, and 541-542) <ref>Sheriff, R.
    1 KB (153 words) - 09:17, 2 October 2017
  • ...um; <b>flattening</b> (see Figure [[Special:MyLanguage/Dictionary:Fig_F-12|F-12]]) thereby assuming that everything was horizontal at the time of the pa
    593 bytes (85 words) - 07:25, 14 February 2017
  • ...o make all frequency components within a band-pass equal in amplitude; <b>(f) shaping</b> the amplitude-frequency and/or phase response to match that of
    2 KB (257 words) - 09:50, 23 March 2017
  • ...te is <b>sinistral</b>. See Figure [[Special:MyLanguage/Dictionary:Fig_F-4|F-4]].
    332 bytes (47 words) - 19:29, 7 March 2017
  • <b>D</b>elayed <b>F</b>ission <b>N</b>eutron log.
    149 bytes (24 words) - 18:25, 3 April 2017
  • <b>D</b>igital (seismic) <b>F</b>ield <b>S</b>ystem. Texas Instruments tradename.
    181 bytes (27 words) - 18:24, 3 April 2017
  • <center> <math> \int_{-\infty}^{\infty} f(t) \delta(t) \; dt = f(0). </math> </center> ...ath> \lim_{n\rightarrow \infty} \int_{-\infty}^{\infty} f(t) S_n(t)\; dt = f(0). </math> </center>
    6 KB (878 words) - 15:28, 27 November 2017
  • ...etrain so that use of steady-state patterns can be misleading. A plot in ''f-k'' space is a form of directivity graph showing also the frequency-depende
    1 KB (195 words) - 15:32, 27 November 2017
  • ...ssary and sufficient conditions for a Fourier series: In any region: (a) ''f''(''x'') is continuous except for a finite number of finite discontinuities
    444 bytes (62 words) - 21:00, 24 January 2017
  • ...tinct from phase velocity ''V''. Where <math>\lambda </math>=wavelength, ''f''=frequency, and ''V''=phase velocity, <center><math>V=f\lambda=\frac{f}{1/\lambda} </math>.</center>
    2 KB (237 words) - 08:32, 20 June 2017
  • .... The percent harmonic distortion is a measure of fidelity; if ''E''<sub>''f''</sub> is the rms voltage of the fundamental and ''E''<sub>''n''</sub> is
    2 KB (254 words) - 21:04, 3 April 2017
  • <center><math>F(x)=\int P[x]dx </math>.</center>
    452 bytes (67 words) - 21:06, 3 April 2017
  • ...aces having the same source; (<b>e</b>) <b>common-receiver gather</b>; (<b>f</b>) <b>common-offset gather</b>. (<b>g</b>) If there are horizontal veloci ...urnal |last=Bolondi |first=G |last2=Loinger |first2=E |last3=Rocca |first3=F |date=1982 |title=Offset continuation of seismic sections|journal=Geophysic
    5 KB (744 words) - 20:46, 4 May 2017
  • U.S. <b>D</b>epartment <b>O</b>f <b>D</b>efense.
    148 bytes (25 words) - 20:46, 4 May 2017
  • U.S. <b>D</b>epartment <b>O</b>f <b>E</b>nergy.
    147 bytes (25 words) - 15:37, 21 November 2018
  • ...y is the independent variable; in the <b>''f,k''</b> <b>domain</b> or <b>''f,k''</b> <b>space</b>, frequency and wavenumber are the independent variable
    1 KB (183 words) - 22:45, 7 June 2017
  • ...os&#x03BE;sin&#x03BE;, where &#x03BE; is the dip (Levin, 1971)<ref> Levin, F. K., 1971, Apparent velocity from dipping interface reflections: Geophysics
    3 KB (432 words) - 16:07, 31 January 2017
  • (&#x2202;rth h&#x014D;&#x2019;log r&#x2202; f&#x0113;) Recording of the wave pattern from a constant frequency source alo
    506 bytes (73 words) - 13:51, 6 February 2017
  • ...b = 1/(1-f) = (1 - \varepsilon^2)^{-1/2}</math>; <b>flattening</b> <math>= f = (a - b)/a = 1 - 1/E</math>; and <math>\theta</math> = <b>eccentric</b> <b
    1 KB (212 words) - 13:35, 23 December 2018
  • <b>E</b>levation <b>C</b>orrection <b>F</b>actor. See [[Dictionary:elevation_correction|''elevation correction'']].
    190 bytes (27 words) - 12:54, 17 October 2016
  • ...tionary:Fig_A-22|A-22]] and also ''[[Special:MyLanguage/Dictionary:F-layer|F-layer]]'' and ''[[Special:MyLanguage/Dictionary:D-layer|D-layer]]''. <b>2</
    635 bytes (97 words) - 13:33, 6 February 2017
  • <b>E</b>xtremely <b>L</b>ow <b>F</b>requency; electromagnetic energy between 300 and 3000 Hz. Natural energy
    385 bytes (53 words) - 17:54, 29 July 2018
  • [[Special:MyLanguage/Dictionary:error_function|<b>''ER''</b>''ror''<b>''F''</b>''unction'']] (q.v.).
    230 bytes (29 words) - 18:01, 19 February 2017
  • ...r><math>(x-x_0)\frac{dF}{dx}+(y-y_0)\frac{dF}{dy}+(z-z_0)\frac{dF}{dz}=N(B-F)</math>,</center> ..._{0},y_{0},z_{0})</math> is the source location whose magnetic field <math>F</math> is measured at <math>(x,y,z)</math>; ''B'' is the regional value of
    1 KB (181 words) - 22:01, 22 February 2017
  • ...same value when the sign of the variable is changed; i.e., ''f''(''x'')=''f''(&#x2013;''x''). The Fourier transform of an even function is the <b>cosin
    527 bytes (82 words) - 10:32, 27 February 2017
  • <center><math>F(f)=1-e^{-f\phi}</math>,</center> ...the mean. It has a high initial value and then declines with increasing ''f''. Often used to model effects that vary with their separation.
    413 bytes (61 words) - 14:42, 7 February 2017
  • {{#category_index:F|F}} ...es the storage of one coulomb. (See [[Special:MyLanguage/Dictionary:farad_(F)|''farad'']]).
    274 bytes (37 words) - 07:54, 18 April 2017
  • {{#category_index:F|fabric}}
    864 bytes (92 words) - 20:30, 21 October 2019
  • {{#category_index:F|facies}} (f&#x0101;&#x2019; sh&#x0113;z) <b>1</b>. The characteristics that distinguish
    515 bytes (64 words) - 21:55, 9 April 2017
  • {{#category_index:F|facies analysis}}
    215 bytes (23 words) - 17:12, 10 April 2017
  • {{#category_index:F|factor analysis}}
    1 KB (163 words) - 20:38, 21 October 2019
  • {{#category_index:F|fade}}
    162 bytes (17 words) - 07:55, 18 April 2017
  • {{#category_index:F|failed arm}}
    314 bytes (45 words) - 07:56, 18 April 2017
  • {{#category_index:F|fairing}}
    517 bytes (71 words) - 07:56, 18 April 2017
  • {{#category_index:F|fairway}}
    447 bytes (64 words) - 07:57, 18 April 2017
  • {{#category_index:F|FAL}} [[Special:MyLanguage/Dictionary:formation-analysis_log_(FAL)|<b>''F''</b>''ormation''-<b>''A''</b>''nalysis'' <b>''L''</b>''og'']] (q.v.).
    239 bytes (31 words) - 21:01, 22 October 2019
  • {{#category_index:F|false color}}
    456 bytes (59 words) - 07:57, 18 April 2017
  • {{#category_index:F|false crossover}}
    194 bytes (26 words) - 08:12, 18 April 2017
  • {{#category_index:F|false easting, false northing}}
    250 bytes (28 words) - 08:12, 18 April 2017
  • {{#category_index:F|faltung}}
    258 bytes (29 words) - 08:12, 18 April 2017
  • {{#category_index:F|Famous}}
    213 bytes (23 words) - 21:07, 22 October 2019
  • {{#category_index:F|fan-filter}}
    197 bytes (21 words) - 16:08, 25 February 2017
  • {{#category_index:F|fan shooting}} ...l high-velocity bodies. See Figure [[Special:MyLanguage/Dictionary:Fig_F-1|F-1]].
    242 bytes (29 words) - 08:14, 18 April 2017
  • {{#category_index:F|fantom}}
    177 bytes (19 words) - 16:09, 25 February 2017
  • {{#category_index:F|farad (F)}}
    292 bytes (39 words) - 08:15, 18 April 2017
  • {{#category_index:F|faradaic}}
    512 bytes (70 words) - 08:15, 18 April 2017
  • {{#category_index:F|faraday}}
    259 bytes (31 words) - 08:16, 18 April 2017
  • {{#category_index:F|Faraday&#x2019;s law of induction}}
    748 bytes (129 words) - 10:30, 20 April 2021
  • {{#category_index:F|far-angle stack}}
    363 bytes (52 words) - 16:09, 25 February 2017
  • {{#category_index:F|far-field}}
    572 bytes (77 words) - 08:15, 18 April 2017
  • {{#category_index:F|farm-out, farm-in}}
    312 bytes (42 words) - 08:17, 18 April 2017
  • {{#category_index:F|far-offset stack}}
    313 bytes (42 words) - 16:09, 25 February 2017
  • {{#category_index:F|far-zone sounding}}
    506 bytes (59 words) - 11:11, 10 January 2019
  • {{#category_index:F|fast Fourier transform (FFT)}}
    441 bytes (53 words) - 08:54, 23 February 2017
  • {{#category_index:F|fast in, slow out (FISO)}}
    225 bytes (27 words) - 20:29, 29 July 2018
  • {{#category_index:F|fathom}}
    133 bytes (15 words) - 11:32, 10 January 2019
  • {{#category_index:F|fathometer}}
    229 bytes (31 words) - 19:26, 12 August 2018
  • {{#category_index:F|fatigue}}
    209 bytes (25 words) - 11:33, 10 January 2019
  • {{#category_index:F|fault}} ...uage/Dictionary:Fig_F-3|F-3]], and [[Special:MyLanguage/Dictionary:Fig_F-4|F-4]].
    5 KB (824 words) - 10:58, 9 April 2019
  • {{#category_index:F|fault cut}}
    188 bytes (22 words) - 11:34, 10 January 2019
  • {{#category_index:F|faulted slab}}
    215 bytes (25 words) - 11:43, 10 January 2019
  • {{#category_index:F|fault-plane solutions}}
    354 bytes (44 words) - 19:27, 12 August 2018
  • {{#category_index:F|fault polygons}}
    300 bytes (37 words) - 11:36, 10 January 2019
  • {{#category_index:F|fault seal analysis}}
    667 bytes (94 words) - 20:42, 29 July 2018
  • {{#category_index:F|fault shadow}}
    373 bytes (55 words) - 11:37, 10 January 2019
  • {{#category_index:F|fault slice}} ...13;22, 225&#x2013;232) and Figures [[Special:MyLanguage/Dictionary:Fig_F-5|F-5]] and [[Special:MyLanguage/Dictionary:Fig_T-5|T-5]].
    1 KB (184 words) - 11:40, 10 January 2019
  • {{#category_index:F|fault trace}}
    208 bytes (30 words) - 20:48, 29 July 2018
  • {{#category_index:F|Faust&#x2019;s equations}}
    1 KB (198 words) - 10:29, 16 March 2020
  • {{#category_index:F|FD}} <b>F</b>requency <b>D</b>omain. See [[Special:MyLanguage/Dictionary:frequency-do
    221 bytes (27 words) - 11:47, 10 January 2019
  • {{#category_index:F|FDC}} <b>C</b>ompensated <b>F</b>ormation-<b>D</b>ensity log; see [[Special:MyLanguage/Dictionary:density
    247 bytes (35 words) - 11:48, 10 January 2019
  • {{#category_index:F|FDEM, FEM}} <b>F</b>requency-<b>D</b>omain <b>E</b>lectro<b>M</b>agnetics; see [[Special:MyL
    261 bytes (36 words) - 20:52, 29 July 2018
  • {{#category_index:F|FDL}} <b>F</b>ormation-<b>D</b>ensity <b>L</b>og; see [[Special:MyLanguage/Dictionary:
    210 bytes (31 words) - 11:48, 10 January 2019
  • {{#category_index:F|feathering}} ...e to the seismic line. See Figures [[Special:MyLanguage/Dictionary:Fig_F-6|F-6]] and [[Special:MyLanguage/Dictionary:Fig_T-4|T-4]].
    1 KB (205 words) - 19:52, 9 January 2019
  • {{#category_index:F|feather edge}}
    355 bytes (53 words) - 19:27, 12 August 2018
  • {{#category_index:F|feather pattern}}
    325 bytes (45 words) - 19:41, 9 January 2019
  • {{#category_index:F|feedback}}
    470 bytes (73 words) - 11:48, 7 November 2018
  • {{#category_index:F|feedback filter}}
    204 bytes (22 words) - 16:09, 25 February 2017
  • {{#category_index:F|Fejer kernel window}} (f&#x0101;&#x2019; j&#x2202;r)
    476 bytes (68 words) - 20:57, 29 July 2018
  • {{#category_index:F|felsic}}
    279 bytes (35 words) - 19:56, 9 January 2019
  • {{#category_index:F|''FEM''=''FDEM''}} <b>F</b>requency-<b>D</b>omain <b>E</b>lectro<b>M</b>agnetics; see [[Special:MyL
    268 bytes (36 words) - 10:26, 20 April 2021
  • {{#category_index:F|fence diagram}} ...fence-diagram is shown in Figures [[Special:MyLanguage/Dictionary:Fig_F-7|F-7]] and [[Special:MyLanguage/Dictionary:Fig_T-6|T-6]].
    469 bytes (63 words) - 20:58, 29 July 2018
  • {{#category_index:F|fence effect}}
    450 bytes (63 words) - 16:59, 9 April 2019
  • {{#category_index:F|Fermat path}}
    245 bytes (33 words) - 17:38, 29 October 2018
  • {{#category_index:F|Fermat&#x2019;s principle}}
    777 bytes (120 words) - 10:30, 16 March 2020
  • {{#category_index:F|ferrimagnetism}}
    543 bytes (66 words) - 20:08, 9 January 2019
  • {{#category_index:F|ferromagnetic}}
    779 bytes (103 words) - 17:08, 30 October 2018
  • {{#category_index:F|FET}} [[Special:MyLanguage/Dictionary:field-effect_transistor_(FET)|<b>''F''</b>''ield''-<b>''E''</b>''ffect'' <b>''T''</b>''ransistor'']] (q.v.).
    241 bytes (31 words) - 17:39, 29 October 2018
  • {{#category_index:F|fetch}}
    306 bytes (43 words) - 17:09, 30 October 2018
  • {{#category_index:F|FFI}} ...cial:MyLanguage/Dictionary:free-fluid_index_(FFI)|<b>''F''</b>''ree'' <b>''F''</b>''luid'' <b>''I''</b>''ndex'']] (q.v.). See also [[Special:MyLanguage/
    334 bytes (42 words) - 17:39, 29 October 2018
  • {{#category_index:F|FFT}} ...yLanguage/Dictionary:fast_Fourier_transform_(FFT)|<b>''F''</b>''ast'' <b>''F''</b>''ourier'' <b>''T''</b>''ransform'']] (q.v.).
    238 bytes (32 words) - 17:18, 30 October 2018
  • {{#category_index:F|Fick&#x2019;s law}}
    268 bytes (41 words) - 10:30, 16 March 2020
  • {{#category_index:F|fiducials}}
    460 bytes (73 words) - 20:58, 29 July 2018
  • {{#category_index:F|fiducial time}}
    308 bytes (44 words) - 17:18, 30 October 2018
  • {{#category_index:F|field}}
    795 bytes (115 words) - 17:18, 30 October 2018
  • {{#category_index:F|field balance}}
    209 bytes (23 words) - 17:18, 30 October 2018
  • {{#category_index:F|field continuation}}
    196 bytes (19 words) - 20:58, 29 July 2018
  • {{#category_index:F|field-effect transistor (FET)}}
    474 bytes (65 words) - 21:02, 29 July 2018
  • {{#category_index:F|field file}}
    206 bytes (25 words) - 17:18, 30 October 2018
  • {{#category_index:F|field filter}}
    181 bytes (23 words) - 13:12, 1 March 2017
  • {{#category_index:F|field impedance}}
    187 bytes (19 words) - 19:27, 12 August 2018
  • {{#category_index:F|field intensity}}
    464 bytes (70 words) - 19:20, 22 January 2018
  • {{#category_index:F|field of view}}
    193 bytes (25 words) - 17:19, 30 October 2018
  • {{#category_index:F|field processing}}
    478 bytes (67 words) - 13:13, 1 March 2017
  • {{#category_index:F|field tape}}
    278 bytes (39 words) - 13:13, 1 March 2017
  • {{#category_index:F|field timing}}
    488 bytes (73 words) - 17:19, 30 October 2018
  • {{#category_index:F|figure of merit}}
    499 bytes (69 words) - 17:19, 30 October 2018
  • {{#category_index:F|figure of the Earth}}
    186 bytes (22 words) - 19:27, 12 August 2018
  • {{#category_index:F|file}}
    312 bytes (46 words) - 14:39, 2 March 2017
  • {{#category_index:F|file protect}}
    248 bytes (31 words) - 14:40, 2 March 2017
  • {{#category_index:F|file transfer protocol (FTP)}}
    213 bytes (24 words) - 14:40, 2 March 2017
  • {{#category_index:F|filter}} ...amplitude may be used. See Figure [[Special:MyLanguage/Dictionary:Fig_F-8|F-8]].
    3 KB (452 words) - 17:19, 30 October 2018
  • {{#category_index:F|filter analysis}}
    165 bytes (20 words) - 13:13, 1 March 2017
  • {{#category_index:F|filter cake}}
    211 bytes (24 words) - 09:31, 11 April 2019
  • {{#category_index:F|filter correction}}
    208 bytes (25 words) - 13:14, 1 March 2017
  • {{#category_index:F|filtering}} ...ary:filter|''filter'']] and Figure [[Special:MyLanguage/Dictionary:Fig_F-8|F-8]].
    435 bytes (56 words) - 13:15, 1 March 2017
  • {{#category_index:F|filter panel}}
    275 bytes (38 words) - 13:14, 1 March 2017
  • {{#category_index:F|filter scan}}
    192 bytes (22 words) - 13:14, 1 March 2017
  • {{#category_index:F|filtrate}}
    282 bytes (37 words) - 10:27, 10 January 2019
  • {{#category_index:F|filtration rate}}
    670 bytes (107 words) - 21:03, 29 July 2018
  • {{#category_index:F|fines}}
    150 bytes (17 words) - 10:30, 10 January 2019
  • {{#category_index:F|fingering}}
    220 bytes (26 words) - 10:50, 10 January 2019
  • {{#category_index:F|fingerprinting oil}}
    244 bytes (25 words) - 21:03, 29 July 2018
  • {{#category_index:F|fingers}}
    322 bytes (44 words) - 10:51, 10 January 2019
  • {{#category_index:F|fining upward}}
    230 bytes (28 words) - 21:03, 12 August 2018
  • {{#category_index:F|finite-difference method}}
    350 bytes (45 words) - 13:15, 1 March 2017
  • {{#category_index:F|finite-element method}}
    279 bytes (33 words) - 13:15, 1 March 2017
  • {{#category_index:F|fire-flood}}
    200 bytes (20 words) - 10:55, 10 January 2019
  • {{#category_index:F|firewall}}
    170 bytes (19 words) - 14:39, 2 March 2017
  • {{#category_index:F|FIR filter}} A filter with <b>F</b>inite-duration <b>I</b>mpulse <b>R</b>esponse.
    175 bytes (27 words) - 13:16, 1 March 2017
  • {{#category_index:F|firing}}
    213 bytes (26 words) - 10:57, 10 January 2019
  • {{#category_index:F|firing rate}}
    199 bytes (26 words) - 10:57, 10 January 2019
  • {{#category_index:F|firmware}}
    195 bytes (24 words) - 08:32, 14 June 2017
  • {{#category_index:F|first arrival}}
    192 bytes (22 words) - 13:16, 1 March 2017
  • {{#category_index:F|first break}}
    442 bytes (59 words) - 13:16, 1 March 2017
  • {{#category_index:F|first-break intercept-time method}}
    290 bytes (36 words) - 13:16, 1 March 2017
  • {{#category_index:F|first motion}} ...ve from an earthquake. See Figure [[Special:MyLanguage/Dictionary:Fig_F-10|F-10]].
    275 bytes (38 words) - 21:03, 29 July 2018
  • {{#category_index:F|first-order triangulation}}
    205 bytes (19 words) - 18:30, 16 January 2018
  • {{#category_index:F|first point of Aries}}
    184 bytes (21 words) - 10:31, 10 January 2019
  • {{#category_index:F|fish}}
    429 bytes (65 words) - 18:30, 16 January 2018
  • {{#category_index:F|fishnet plot}}
    253 bytes (34 words) - 18:31, 16 January 2018
  • {{#category_index:F|fishtail bit}}
    291 bytes (41 words) - 18:31, 16 January 2018
  • {{#category_index:F|fish trap}}
    191 bytes (24 words) - 18:30, 16 January 2018
  • {{#category_index:F|fission track dating}}
    695 bytes (109 words) - 18:31, 16 January 2018
  • {{#category_index:F|five-spot pattern}}
    248 bytes (31 words) - 18:32, 16 January 2018
  • {{#category_index:F|fix}}
    382 bytes (52 words) - 18:32, 16 January 2018
  • {{#category_index:F|fixed data}}
    239 bytes (36 words) - 18:33, 16 January 2018
  • {{#category_index:F|fixed field}}
    151 bytes (17 words) - 18:33, 16 January 2018
  • {{#category_index:F|fixed layer}}
    319 bytes (47 words) - 18:33, 16 January 2018
  • {{#category_index:F|fixed-layer capacitance}}
    193 bytes (21 words) - 18:32, 16 January 2018
  • {{#category_index:F|fixed point}}
    337 bytes (43 words) - 18:33, 16 January 2018
  • {{#category_index:F|fixed-source method}}
    401 bytes (50 words) - 18:32, 16 January 2018
  • {{#category_index:F|fizz water}}
    329 bytes (41 words) - 18:34, 16 January 2018
  • {{DISPLAYTITLE:''f-k'' analysis|noreplace}} {{#category_index:F|''f-k'' analysis}}
    191 bytes (22 words) - 13:59, 13 June 2017
  • ...-k''</b> <b>plots</b> (see Figure [[Special:MyLanguage/Dictionary:Fig_F-11|F-11]]) in which energy density within a given time interval is contoured on FIG. F-11.
    1 KB (206 words) - 11:29, 11 June 2019
  • {{DISPLAYTITLE:''f-k'' filtering|noreplace}} {{#category_index:F|''f-k'' filtering}}
    403 bytes (47 words) - 13:55, 13 June 2017
  • {{DISPLAYTITLE:''f-k'' migration|noreplace}} {{#category_index:F|''f-k'' migration}}
    918 bytes (96 words) - 13:49, 13 June 2017
  • See [[Special:MyLanguage/Dictionary:f-k_domain|''f-k'' ''domain'']].
    116 bytes (13 words) - 15:54, 28 November 2020
  • {{#category_index:F|flag, flagging}}
    628 bytes (107 words) - 18:34, 16 January 2018
  • {{#category_index:F|Flair}}
    456 bytes (66 words) - 18:34, 16 January 2018
  • {{#category_index:F|flash memory}}
    211 bytes (30 words) - 14:40, 2 March 2017
  • {{#category_index:F|flat address space}}
    208 bytes (25 words) - 18:35, 16 January 2018
  • {{#category_index:F|flat spot}}
    327 bytes (42 words) - 18:35, 16 January 2018
  • {{#category_index:F|flattened section/surface}} ...of the flattened bed; see Figure [[Special:MyLanguage/Dictionary:Fig_F-12|F-12]]. Useful in studies of variations in the time interval between events a
    780 bytes (112 words) - 20:52, 17 January 2018
  • {{#category_index:F|flattening}}
    367 bytes (51 words) - 20:52, 17 January 2018
  • {{#category_index:F|flat-topping}}
    448 bytes (61 words) - 18:35, 16 January 2018
  • {{#category_index:F|F-layer}} ...usually 175 to 250 km high and is found only during daylight. The higher ''F''<sub>2</sub> layer at 250 to 400 km is present both night and day and is t
    712 bytes (114 words) - 08:38, 4 July 2019
  • {{#category_index:F|fled}}
    171 bytes (19 words) - 20:52, 17 January 2018
  • {{#category_index:F|flexing}}
    185 bytes (20 words) - 20:54, 17 January 2018
  • {{lowercase}}{{#category_index:F|flexural rigidity of the Earth&#x2019;s crust}}
    215 bytes (27 words) - 10:32, 16 March 2020
  • {{#category_index:F|flex binning}}
    432 bytes (54 words) - 14:40, 2 March 2017
  • {{#category_index:F|flexural ice wave}}
    424 bytes (61 words) - 20:54, 17 January 2018
  • {{#category_index:F|flexural wave}}
    301 bytes (46 words) - 20:55, 17 January 2018
  • {{#category_index:F|flight line}}
    228 bytes (36 words) - 20:53, 17 January 2018
  • {{#category_index:F|flight-path recovery}}
    291 bytes (37 words) - 20:53, 17 January 2018
  • {{#category_index:F|flip}}
    163 bytes (20 words) - 20:54, 17 January 2018
  • {{#category_index:F|flip polarity}}
    188 bytes (23 words) - 14:40, 2 March 2017
  • {{#category_index:F|flip-flop}}
    479 bytes (72 words) - 20:54, 17 January 2018
  • {{#category_index:F|floating}}
    190 bytes (23 words) - 20:53, 17 January 2018
  • {{#category_index:F|floating charge}}
    239 bytes (32 words) - 20:53, 17 January 2018
  • {{#category_index:F|floating datum}}
    577 bytes (85 words) - 14:41, 2 March 2017
  • {{#category_index:F|floating point}}
    529 bytes (79 words) - 14:41, 2 March 2017
  • {{#category_index:F|flood}}
    896 bytes (136 words) - 20:55, 17 January 2018
  • {{#category_index:F|flood the topography}}
    181 bytes (23 words) - 20:56, 17 January 2018
  • {{#category_index:F|flooding surface}}
    214 bytes (26 words) - 20:55, 17 January 2018
  • {{#category_index:F|flood-plain deposits}}
    215 bytes (26 words) - 20:55, 17 January 2018
  • {{#category_index:F|flops}}
    152 bytes (16 words) - 14:41, 2 March 2017
  • {{#category_index:F|floppy disk}}
    157 bytes (19 words) - 20:56, 17 January 2018
  • {{#category_index:F|flowchart}} ...steps in processing. See Figures [[Special:MyLanguage/Dictionary:Fig_F-14|F-14]] and [[Special:MyLanguage/Dictionary:Fig_P-14|P-14]].
    362 bytes (50 words) - 20:56, 17 January 2018
  • {{#category_index:F|flower structure}} ...ng a number of faults. See Figure [[Special:MyLanguage/Dictionary:Fig_F-15|F-15]].
    432 bytes (54 words) - 20:56, 17 January 2018
  • {{#category_index:F|flowing pressure}}
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  • {{#category_index:F|flowmeter}}
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  • {{#category_index:F|flow test}}
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  • {{#category_index:F|fluid factor}} <center><math> \Delta F=R_P-1.16(V_S/V_P)R_S </math>,</center>
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  • {{#category_index:F|fluid incompressibility}}
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  • {{#category_index:F|fluid pressure}}
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  • {{#category_index:F|fluid replacement}}
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  • {{#category_index:F|fluid sampler}}
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  • {{#category_index:F|fluid substitution}} ...s usually use the (1951) [[wp:Gassmann's_equation|equations]]<ref>Gassmann F. 1951. Über die Elastizität poröser Medien. Vierteljahrsschrift der Natu
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  • {{#category_index:F|fluid-travel log}}
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  • {{#category_index:F|fluorimetry}}
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  • {{#category_index:F|flushed zone}}
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  • {{#category_index:F|flutter}}
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  • {{#category_index:F|flux}}
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  • {{#category_index:F|flux density}}
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  • {{#category_index:F|fluxgate magnetometer}} ...rder of 0.2 nanotesla. See Figure [[Special:MyLanguage/Dictionary:Fig_F-16|F-16]]. The magnetometer measures the magnetic field component along the axis
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  • {{#category_index:F|flyer}}
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  • {{#category_index:F|FM}} [[Special:MyLanguage/Dictionary:frequency_modulation_(FM)|<b>''F''</b>''requency'' <b>''M''</b>''odulation'']] (q.v.).
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  • {{#category_index:F|FMI}} [[Special:MyLanguage/Dictionary:formation_microimager_(FMI)|<b>''F''</b>''ormation'' <b>''M''</b>''icro'' <b>''I''</b>''mager'']] (q.v.).
    237 bytes (31 words) - 20:01, 18 January 2018
  • {{#category_index:F|FMS}} [[Special:MyLanguage/Dictionary:formation_microscanner_(FMS)|<b>''F''</b>''ormation'' <b>''M''</b>''icro'' <b>''S''</b>''canner'']] (q.v.).
    239 bytes (31 words) - 20:01, 18 January 2018
  • {{#category_index:F|focal length}}
    254 bytes (38 words) - 20:05, 18 January 2018
  • {{#category_index:F|focus}}
    422 bytes (60 words) - 22:07, 9 April 2017
  • {{#category_index:F|focusing analysis}}
    285 bytes (36 words) - 14:49, 2 March 2017
  • {{#category_index:F|focused log}}
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  • {{#category_index:F|fold}}
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  • {{#category_index:F|foldback}}
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  • {{#category_index:F|folding}} ...styles are illustrated in Figure [[Special:MyLanguage/Dictionary:Fig_F-17|F-17]]d, e. Folding is <b>disharmonic</b> where the folding of one bed is not
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  • {{#category_index:F|folding frequency}}
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  • {{#category_index:F|fold test}}
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  • {{#category_index:F|footprint}}
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  • {{#category_index:F|footwall}} ...13;21, 225&#x2013;232) and Figures [[Special:MyLanguage/Dictionary:Fig_F-3|F-3]] and [[Special:MyLanguage/Dictionary:Fig_T-5|T-5]]e.
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  • {{#category_index:F|forced regression}}
    209 bytes (24 words) - 18:47, 6 February 2018
  • {{#category_index:F|force majeure}}
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  • {{#category_index:F|fore-reef}}
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  • {{#category_index:F|foreshock}}
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  • {{#category_index:F|foreign}}
    196 bytes (29 words) - 18:59, 6 February 2018
  • {{#category_index:F|foresight}}
    260 bytes (34 words) - 18:47, 6 February 2018
  • {{#category_index:F|format}}
    658 bytes (94 words) - 12:35, 15 June 2017
  • {{#category_index:F|formation}}
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  • {{#category_index:F|formation-analysis log (FAL)}}
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  • {{#category_index:F|formation damage}}
    194 bytes (23 words) - 18:49, 6 February 2018
  • {{#category_index:F|formation-density log (FDL)}}
    203 bytes (22 words) - 18:48, 6 February 2018
  • {{#category_index:F|formation evaluation}}
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  • {{#category_index:F|formation factor}}
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  • {{#category_index:F|formation fluid pressure}}
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  • {{#category_index:F|formation microimager (FMI)}}
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  • {{#category_index:F|formation microscanner (FMS)}}
    288 bytes (32 words) - 19:20, 22 January 2018
  • {{#category_index:F|formation test}}
    431 bytes (49 words) - 18:50, 6 February 2018
  • {{#category_index:F|form factor}}
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  • {{#category_index:F|Fortran}} ...ssing and free-form syntax. Fortran HPF (<b>H</b>igh-<b>P</b>erformance <b>F</b>ortran) is designed for parallel processing.
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  • {{#category_index:F|Fortsch discontinuity}}
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  • {{#category_index:F|forward bias}}
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  • {{lowercase}}{{#category_index:F|forward modeling, forward &#x0020;process, forward solution}}
    511 bytes (68 words) - 10:33, 16 March 2020
  • {{#category_index:F|forward shot}}
    217 bytes (31 words) - 18:26, 18 February 2018
  • {{#category_index:F|FoRxo}}
    191 bytes (19 words) - 18:19, 18 February 2018
  • {{#category_index:F|fossil remanence}}
    206 bytes (21 words) - 18:26, 18 February 2018
  • {{#category_index:F|Foucault current}}
    282 bytes (34 words) - 18:26, 18 February 2018
  • {{#category_index:F|foundation coefficient}}
    285 bytes (39 words) - 18:27, 18 February 2018
  • {{#category_index:F|fourble}}
    185 bytes (23 words) - 18:28, 18 February 2018
  • {{#category_index:F|four-component recording (4-C)}}
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  • {{#category_index:F|four-dimensional data (4D)}}
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  • {{#category_index:F|Fourier analysis}} ...transform]]'' (q.v.). See Figure [[Special:MyLanguage/Dictionary:Fig_F-18|F-18]]. Opposite of Fourier synthesis. Named for Jean Baptiste Joseph Fourier
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  • {{#category_index:F|Fourier integral}}
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  • {{#category_index:F|Fourier pairs}} ...1]] (where the domains might be offset-time versus frequency-wavenumber (''f''-''k'' space).
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  • {{#category_index:F|Fourier plane}}
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  • {{#category_index:F|Fourier series}} For a function <math> f(t) </math> that is absolutely integrable, which is to say that the followi
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  • {{#category_index:F|Fourier synthesis}} ...omain representation). See Figure [[Special:MyLanguage/Dictionary:Fig_F-18|F-18]]. Fourier synthesis can be thought of as a subset of the [[Special:MyLa
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  • {{#category_index:F|Fourier transform}} ...re neither odd nor even involve variations of phase with frequency. Note ''f''=1/''t''.]]
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  • {{#category_index:F|four-shot method}}
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  • {{#category_index:F|fourth-order sequence}}
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  • {{#category_index:F|four-way dip}}
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  • {{#category_index:F|FPSO}} <b>F</b>loating <b>P</b>roduction <b>S</b>torage and <b>O</b>ffloading system.
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  • {{#category_index:F|fractals}}
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  • {{#category_index:F|fractional halftime}}
    159 bytes (19 words) - 17:57, 14 November 2017
  • {{#category_index:F|fracturing}}
    487 bytes (68 words) - 18:01, 14 November 2017
  • {{#category_index:F|fracture log}}
    370 bytes (53 words) - 17:57, 14 November 2017
  • {{#category_index:F|fracture permeability/porosity}}
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  • {{#category_index:F|fracture pressure}}
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  • {{#category_index:F|Fraunhofer diffraction}} (froun&#x2019; h&#x014D; f&#x2202;r). The special case of [[Special:MyLanguage/Dictionary:Fresnel_diff
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  • {{#category_index:F|free-air anomaly}}
    435 bytes (61 words) - 11:47, 13 February 2017
  • {{#category_index:F|free-air correction}}
    865 bytes (121 words) - 12:22, 13 February 2017
  • {{#category_index:F|free-air gravity}}
    202 bytes (21 words) - 17:51, 13 February 2017
  • {{#category_index:F|free energy}}
    211 bytes (21 words) - 18:00, 14 November 2017
  • {{#category_index:F|free-fall gravimetry}}
    209 bytes (28 words) - 18:04, 13 February 2017
  • {{#category_index:F|free field}}
    192 bytes (23 words) - 18:00, 14 November 2017
  • {{#category_index:F|free-fluid index (FFI)}}
    352 bytes (48 words) - 18:09, 13 February 2017
  • {{#category_index:F|free format}}
    167 bytes (21 words) - 14:43, 2 March 2017
  • {{#category_index:F|free nutation of the Earth}}
    210 bytes (24 words) - 18:00, 14 November 2017
  • {{#category_index:F|free oscillation of the Earth}} ...es in the lowest mode. See Figure [[Special:MyLanguage/Dictionary:Fig_F-23|F-23]] and Fowler (1990, 85).
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  • {{#category_index:F|free-space field}}
    260 bytes (32 words) - 17:59, 14 November 2017
  • {{#category_index:F|freeware}}
    181 bytes (23 words) - 18:00, 14 November 2017
  • {{#category_index:F|freezing point}}
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  • {{#category_index:F|French model}} A particular physical model (Figure [[Special:MyLanguage/Dictionary:Fig_F-24|F-24]]) used extensively for demonstrating 3D aspects of seismic data and for
    833 bytes (108 words) - 18:00, 14 November 2017
  • {{#category_index:F|frequency}} '''1'''. Symbol, ''f''. The repetition rate of a periodic waveform, measured in &#x2018;&#x2018;
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  • {{#category_index:F|frequency domain (FD)}}
    255 bytes (31 words) - 14:45, 2 March 2017
  • {{#category_index:F|frequency-domain method}}
    462 bytes (54 words) - 18:03, 14 November 2017
  • {{#category_index:F|frequency-domain migration}}
    893 bytes (120 words) - 14:47, 2 March 2017
  • {{#category_index:F|frequency-domain sounding}}
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  • {{#category_index:F|frequency effect (FE)}} ..."inline">\rho_{a2}</math>) made at two frequencies ''f''<sub>1</sub> and ''f''<sub>2</sub>, divided by the apparent resistivity at one of the frequencie
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  • {{#category_index:F|frequency filtering}}
    194 bytes (20 words) - 14:46, 2 March 2017
  • {{#category_index:F|frequency modulation (FM)}}
    433 bytes (58 words) - 14:46, 2 March 2017
  • {{#category_index:F|frequency panel}}
    203 bytes (26 words) - 14:46, 2 March 2017
  • {{#category_index:F|frequency response}}
    266 bytes (31 words) - 14:46, 2 March 2017
  • {{#category_index:F|frequency slices}}
    221 bytes (26 words) - 14:47, 2 March 2017
  • {{#category_index:F|frequency sounding}}
    220 bytes (21 words) - 18:03, 14 November 2017
  • {{#category_index:F|frequency spectrum}}
    278 bytes (32 words) - 14:47, 2 March 2017
  • {{#category_index:F|frequency standard}}
    595 bytes (82 words) - 18:05, 14 November 2017
  • {{#category_index:F|fresh}}
    380 bytes (52 words) - 18:04, 14 November 2017
  • {{#category_index:F|Fresnel diffraction}}
    350 bytes (38 words) - 18:04, 14 November 2017
  • {{#category_index:F|Fresnel lens}}
    177 bytes (20 words) - 18:05, 14 November 2017
  • {{#category_index:F|Fresnel zone}} ...t Fresnel zone is shown in Figure [[Special:MyLanguage/Dictionary:Fig_F-26|F-26]]. See Sheriff and Geldart (1995, 152). <b>3</b>. A <b>Fresnel lens</b>
    1 KB (207 words) - 18:05, 14 November 2017
  • {{#category_index:F|fringe}}
    590 bytes (89 words) - 18:05, 14 November 2017
  • {{#category_index:F|front end}}
    219 bytes (32 words) - 18:06, 14 November 2017
  • {{#category_index:F|frontier area}}
    210 bytes (26 words) - 18:05, 14 November 2017
  • {{#category_index:F|front-loaded}}
    195 bytes (21 words) - 18:05, 14 November 2017
  • {{#category_index:F|front-to-back ratio}}
    213 bytes (21 words) - 15:12, 22 November 2017
  • {{#category_index:F|frost breaks}}
    309 bytes (42 words) - 18:06, 14 November 2017
  • {{#category_index:F|frown}}
    222 bytes (24 words) - 18:07, 14 November 2017
  • {{#category_index:F|FTP}} [[Special:MyLanguage/Dictionary:file_transfer_protocol_(FTP)|<b>''F''</b>''ile'' <b>''T''</b>''ransfer'' <b>''P''</b>''rotocol'']] (q.v.).
    238 bytes (32 words) - 17:58, 14 November 2017
  • {{#category_index:F|Fuller filter}}
    181 bytes (21 words) - 14:48, 2 March 2017
  • {{#category_index:F|function}}
    205 bytes (30 words) - 14:48, 2 March 2017
  • {{#category_index:F|functionality}}
    163 bytes (19 words) - 18:06, 14 November 2017
  • {{#category_index:F|function key}}
    255 bytes (36 words) - 14:48, 2 March 2017
  • {{#category_index:F|fundamental}}
    204 bytes (26 words) - 14:48, 2 March 2017
  • {{#category_index:F|fundamental strengh}}
    319 bytes (40 words) - 14:01, 31 October 2019
  • {{#category_index:F|funnel shaped}}
    263 bytes (28 words) - 18:06, 14 November 2017
  • {{#category_index:F|fuzzy logic}}
    252 bytes (32 words) - 18:06, 14 November 2017
  • <center><math>F(t)=e^{-\left(\frac{2\pi f_M t}{\gamma}\right)^2} cos\left(2\pi f_M t +\phi\ where ''t'' is time, ''f''<sub>''M''</sub> is the main frequency, and <math> \gamma </math> is an ar
    817 bytes (111 words) - 18:21, 14 April 2017
  • '''Gardner's equation''', or '''Gardner's relation''', named after G. H. F. Gardner and L. W. Gardner, is an empirically derived equation that relates ...ta = 0.25</math>.<ref name="Gardner">{{cite journal|last=Gardner|first=G.H.F.|coauthors=Gardner L.W. & Gregory A.R.|year=1974|title=Formation velocity a
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  • ==Fluid substitution<ref>Gassmann F. 1951. Über die Elastizität poröser Medien. Vierteljahrsschrift der Natu
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  • ...ng glaciology); (d) <b>physical oceanography</b>; (e) <b>meteorology</b>; (f) <b>gravity</b> and <b>geodesy</b> (the Earth&#x2019;s gravitational field
    2 KB (230 words) - 07:27, 16 March 2017
  • ...atician and physicist. See Figure [[Special:MyLanguage/Dictionary:Fig_F-18|F-18]] and [[Special:MyLanguage/Dictionary:References|Sheriff and Geldart (19
    799 bytes (103 words) - 12:16, 3 July 2018
  • ...hrough the maximization or minimization of a scalar valued function <math> f(x) </math> called the ''objective function'' which may be subject to <math>
    945 bytes (145 words) - 14:46, 25 July 2018
  • (gaus&#x2019; &#x2202;f) A space-domain operator that calculates the scalar difference between the
    356 bytes (47 words) - 06:16, 16 February 2017
  • ...Sometimes grading systems employ letters: ''vg''=very good, ''g''=good, ''f''=fair, ''p''=poor, ''vp''=very poor, and ?=questionable. Coherency-measuri
    650 bytes (87 words) - 12:30, 16 February 2017
  • ...in <b>Newton's Law of Universal Gravitation</b>. The gravitational force ''F'' between two point masses ''m''<sub>1</sub> and ''m''<sub>2</sub> can be r <center><math>F = \frac {\gamma m_1 m_2}{r^2} </math></center>
    992 bytes (158 words) - 07:28, 17 February 2017
  • If ''F'' and ''G'' are two scalar functions, then ...t \left(F\nabla^2 G-G\nabla^2 F \right)dv = \iint \left( F\nabla G-G\nabla F \right) \cdot d\mathbf{s}</math>,</center>
    937 bytes (138 words) - 10:38, 20 April 2021
  • ...d reflection signals. Source and geophone patterns, frequency filtering, ''f''-''k'' filtering, and stacking are used to discriminate against it. It is
    661 bytes (92 words) - 17:30, 29 August 2017
  • <center><math> U=V-\lambda\left(\frac{dV}{d\lambda}\right) = V+f\left(\frac{dV}{df}\right) </math>,</center> where &#x03BB;=wavelength and ''f''=frequency. ''[[Special:MyLanguage/Dictionary:normal-mode_propagation|Norm
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  • The complement of dip; see Figure [[Special:MyLanguage/Dictionary:Fig_F-2|F-2]].
    194 bytes (24 words) - 10:53, 1 July 2016
  • ...013;21, 225&#x2013;232) and Figure [[Special:MyLanguage/Dictionary:Fig_F-2|F-2]].
    543 bytes (80 words) - 10:58, 1 July 2016
  • ...The Hankel transform of order <math> m </math> of the real function <math> f(t)</math> is <center> <math> F(s) = \int J_m(st) \; dt </math></center>
    490 bytes (75 words) - 19:19, 12 April 2019
  • ...) The matrix of second partial derivatives of a function. For a function ''f''(''x''<sub>1</sub>,''x''<sub>2</sub>,...,''x''<sub>''n''</sub>), the Hessi h_{ij}=\frac{\partial^2 f}{\partial x_i \partial x_j}
    492 bytes (74 words) - 16:25, 23 July 2017
  • [[Dictionary:high-frequency_magnetics_(HFMAG)|<b>''H''</b>''igh''-<b>''F''</b>''requency'' <b>''MAG''</b>''netics'']] (q.v.).
    202 bytes (27 words) - 12:59, 24 July 2017
  • ...anguage/Dictionary:high-fidelity_vibroseis_(HFVS)|<b>''H''</b>''igh''-<b>''F''</b>''idelity'' <b>''V''</b>''ibro''<b>''S''</b>''eis'']] (q.v.).
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  • [[Special:MyLanguage/Dictionary:heat_flow_unit_(HFU)|<b>''H''</b>''eat'' <b>''F''</b>''low'' <b>''U''</b>''nit'']] (q.v.).
    222 bytes (32 words) - 11:00, 1 July 2016
  • ...ogging open or cased boreholes with a temperature resolution of 0.5&#x00B0;F.
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  • <center> <math> f(z) = \frac{1}{2 \pi i} \oint_C \frac{f(w)\; dw }{w - z}. </math> </center> <math> f(z) = \mbox{Re}\; f + i \mbox{Im}\; f. </math> the function is a complex-valued function of <math> z </math>. The
    15 KB (2,476 words) - 13:44, 12 September 2018
  • ...et is minimum phase, the wavelet's frequency-domain representation ''W''(''f'') is <center><math> W(f)=A(f)e^{i\gamma(f)}=\vert P(f)\vert^{1/2}e^{i\gamma(f)} </math>.</center>
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  • ...<b>scissors fault</b>. See Figure [[Special:MyLanguage/Dictionary:Fig_F-3|F-3]].
    362 bytes (53 words) - 15:50, 24 July 2017
  • <b>IF</b> and only i<b>F</b>, a mathematical or computer logical operation.
    188 bytes (27 words) - 23:22, 18 January 2017
  • <b>I</b>nstantaneous <b>F</b>loating <b>P</b>oint; see [[Special:MyLanguage/Dictionary:gain_control|'
    219 bytes (31 words) - 22:05, 13 April 2019
  • ...>''nternational'' <b>''G''</b>''eomagnetic'' <b>''R''</b>''eference'' <b>''F''</b>''ield'']] (q.v.).
    293 bytes (37 words) - 16:42, 8 February 2017
  • ''Z'' is in ohms when frequency ''f'' is in hertz, ''L'' is inductance in henrys, and ''C'' is capacitance in f
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  • In the equation ''y''=''f''(''x''), ''x'' (the argument of ''f'') is the independent variable.
    224 bytes (28 words) - 23:21, 18 January 2017
  • ...he loop is executed (as in Figure [[Special:MyLanguage/Dictionary:Fig_F-14|F-14]]). Some systems assume initial values of zero and so do not require ini
    591 bytes (84 words) - 07:05, 30 July 2018
  • (in son&#x2019; &#x2202; f&#x012B;) To illuminate with sonic (seismic) energy.
    196 bytes (25 words) - 10:59, 10 April 2019
  • ...cdot \displaystyle \frac{dg}{dt}-g(x,t) \cdot \displaystyle \frac{df}{dt}}{f^2(x,t)+g^2(x,t)}</math></center> ...:MyLanguage/Dictionary: hilbert_transform|''Hilbert transform'']] of <math>f(t)</math>. Instantaneous frequencies relate the wave propagation and deposi
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  • <center><math>\phi(t) = \arctan \left( \frac{\mbox{Im} \; F(t)}{\mbox{Re} \; F(t)} \right) </math></center> ...he seismic trace and ''Re F(t)'' is the real part of the seismic data ''Im F(t)'' is the imaginary part of the complex trace.Since, most of the time, wa
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  • ...uage/Dictionary:E-layer|E-layer]], [[Special:MyLanguage/Dictionary:F-layer|F-layer]]'', and ''refraction correction''.
    688 bytes (94 words) - 18:43, 8 February 2017
  • (i&#x014D;&#x2019; s&#x2202;f s&#x2202;n) A thin insulator separating two superconducting materials, thro
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  • ...><math>\text{wavenumber}=\frac{1}{\lambda} = k = \frac{\kappa}{2\pi}=\frac{f}{V}</math></center> ...e spatial sense as angular frequency <math>\omega</math> is to frequency ''f'' in the time sense. Confusingly, both <math>\kappa</math> and ''k'' are of
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  • ...lue decomposition'']] (q.v.). See<ref>{{cite journal |last=Jones |first=I. F |last2=Levy |first2=S |date=1987 |title=Signal-to-noise ratio enhancement i
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  • <center><math>F(\xi) = \int_{-\infty}^\infty \!\! K(x,\xi) \, f(x) \, \mathrm{d}x</math></center>
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  • ...-direction and wavenumber in the ''z''-direction (depth). Similar to the ''f'', ''k'' domain except with the frequency variable replaced by &#x03BA;''V'
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  • <center><math>F(s) =\int f(t) e^{-st} dt </math></center> <center><math>f(t)= \frac{1}{2 \pi i} \int F(s)e^{st}ds</math></center>
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  • <center><math> f(x) = \frac{1}{\sigma} e^{-\frac{|x-\mu|}{\sigma}}</math></center>
    591 bytes (85 words) - 15:08, 7 September 2017
  • ...tion) separates into the spacing components of the record section (as in ''f'',''k'' space). One lens thus accomplishes a Fourier transform of the recor
    1 KB (208 words) - 20:55, 7 September 2017
  • ...has moved to the left. See Figure [[Special:MyLanguage/Dictionary:Fig_F-3|F-3]].
    271 bytes (34 words) - 09:53, 5 April 2019
  • ...la for the ''n''<sup>th</sup> derivative of the product of two functions ''f'' and ''g'': <center><math>\frac{d_{n}(fg)}{dx^{n}}=\sum _{k}[n:k]\frac{d^{n-k}f}{dx^{n-k}}\frac{d^{k}g}{dx^{k}}</math></center>
    501 bytes (83 words) - 18:01, 17 April 2018
  • ...is the starting frequency and ''b'' is the rate of change of frequency d''f''/d''t''. See Figure [[Special:MyLanguage/Dictionary:Fig_V-12|V-12]].
    571 bytes (87 words) - 16:59, 26 August 2017
  • ...frequency ''f''<sub>1</sub>, the output will contain only the frequency ''f''<sub>1</sub>; the amplitude and phase may be changed, however. The <b>rule
    720 bytes (117 words) - 18:02, 26 August 2017
  • ...nguage/Dictionary:line_of_position_(LOP)|<b>''L''</b>''ine'' <b>''O''</b>''f'' <b>''P''</b>''osition'']] (q.v.).
    226 bytes (32 words) - 09:37, 7 April 2019
  • ...cial:MyLanguage/Dictionary:line_of_sight|<b>''L''</b>''ine'' <b>''O''</b>''f'' <b>''S''</b>''ight'']] (q.v.).
    215 bytes (31 words) - 15:13, 17 April 2019
  • ...ock composed of a ferromagnesium mineral. Mnemonic for <b>MA</b>gnesium+<b>F</b>err<b>IC</b>. Compare [[Special:MyLanguage/Dictionary:felsic|''felsic'']
    305 bytes (44 words) - 16:16, 15 August 2017
  • ...) instrument drift (d) flight elevation, (e) location errors and misties, (f) the [[Special:MyLanguage/Dictionary:International_Geomagnetic_Reference_Fi
    625 bytes (81 words) - 12:25, 30 July 2017
  • ...2</sup>=10<sup>9</sup>&#x0020;gamma). <b>B</b> is defined via the force <b>F</b> on a charge ''q'' moving with velocity <b>v</b>: <center><math>\mathbf{F}=q\mathbf{v}\times\mathbf{B}</math></center>
    3 KB (465 words) - 19:31, 30 July 2017
  • ...Apparent resistivity <math>\rho_{a}</math>as a function of frequency <math>f</math> is calculated: ...rho_{a}=\frac{1}{\mu \omega} \Big( \frac{E_{i}}{H_{j}}\Big)^2, \omega=2\pi f</math></center>
    2 KB (254 words) - 22:26, 9 March 2017
  • ...may be weighted and sometimes a bias is included (i.e., &#x03A3;&#x03A3;''f''<sub>&#x03B1;,&#x03B2;</sub>&#x2260;0), so that the residual does not chan
    1 KB (203 words) - 22:06, 20 March 2017
  • ...b>) A <b>stereographic projection</b> is both azimuthal and conformal. (<b>f</b>) A <b>polyconic</b> has a straight central meridian and each parallel i
    2 KB (322 words) - 22:06, 20 March 2017
  • Subscript used with log terms to indicate values for the <b>M</b>ud <b>F</b>iltrate.
    196 bytes (30 words) - 21:37, 7 May 2017
  • [[Special:MyLanguage/Dictionary:metal_factor_(MF)|<b>''M''</b>''etal'' <b>''F''</b>''actor'']] (q.v.).
    201 bytes (27 words) - 21:35, 7 May 2017
  • ...uage/Dictionary:maximum_flooding_surface_(MFS)|<b>''M''</b>''aximum'' <b>''F''</b>''looding'' <b>''S''</b>''urface'']] (q.v.).
    242 bytes (32 words) - 21:36, 7 May 2017
  • ...inuation'']], [[Special:MyLanguage/Dictionary:Stolt_migration|''Stolt'' (''f-k'') ''migration'']], &#x03C4;-''p'' ''migration'', [[Special:MyLanguage/Di
    3 KB (466 words) - 14:37, 30 November 2018
  • ...d successively in making an [[Special:MyLanguage/Dictionary:f-k_analysis|''f-k'' ''analysis'']] (q.v.).
    559 bytes (71 words) - 21:30, 21 February 2017
  • <b>M</b>ean <b>T</b>ime <b>B</b>etween <b>F</b>ailures.
    156 bytes (27 words) - 21:47, 21 February 2017
  • The situation where ''f''(&#x03B1;) has more than one possible value for the same value of &#x03B1;
    384 bytes (56 words) - 20:50, 19 February 2017
  • ...=''f''(''x''<sub>''o''</sub>+''nh''), the value at ''y''<sub>''u''</sub>=''f''(''x''<sub>''o''</sub>+''uh'') can be approximated by a series for which t
    698 bytes (109 words) - 18:25, 8 March 2018
  • ...''f''(''z''<sub>''i''</sub>)/''f''&#x2032;(''z''<sub>''i''</sub>), where ''f''&#x2032; is the first derivative with respect to ''z''. Where the process
    580 bytes (87 words) - 18:24, 8 March 2018
  • <b>N</b>etwork <b>F</b>ile <b>S</b>ystem.
    141 bytes (23 words) - 18:22, 8 March 2018
  • ...uage/Dictionary:Fig_A-7|A-7]] and [[Special:MyLanguage/Dictionary:Fig_F-26|F-26]].
    407 bytes (58 words) - 18:03, 18 March 2018
  • A digitized input ''x''<sub>''t''</sub> passed through the filter ''f''<sub>''t''</sub> yields the actual output ''y''<sub>''t''</sub> which in a
    957 bytes (144 words) - 17:51, 14 January 2018
  • ...onary:fault|''fault'']] and Figure [[Special:MyLanguage/Dictionary:Fig_F-3|F-3]].
    261 bytes (29 words) - 01:24, 8 December 2017
  • <b>N</b>ational <b>S</b>cience <b>F</b>ountation, an organization funded by the United States government to sup
    237 bytes (35 words) - 21:28, 31 October 2017
  • ...apirism. Bone <ref name=ch07r13>Bone et al. (1975), Bone, M. R., Giles, B. F., and Tegland, E. R., 1975, Analysis of seismic data using horizontal cross
    6 KB (965 words) - 11:42, 1 October 2014
  • <center><math>F(x)=-F(-x)</math>.</center>
    383 bytes (54 words) - 21:32, 27 October 2017
  • &#x03C9;,''x''=2&#x03C0;''f'',''x''. see ''fx'' ''domain''.
    183 bytes (23 words) - 16:30, 30 July 2018
  • ...ction whose value is zero for all negative values of the argument, i.e., ''F''(''x'')=0 if ''x''&#x003C;0 (or alternatively, zeros for all positive argu
    424 bytes (64 words) - 16:31, 30 July 2018
  • ...f''<sub>3</sub> to ''f''<sub>4</sub>, and flat from ''f''<sub>2</sub> to ''f''<sub>3</sub>.
    482 bytes (75 words) - 10:06, 13 November 2017
  • <b>O</b>pen <b>S</b>oftware <b>F</b>oundation.
    146 bytes (23 words) - 14:40, 13 November 2017
  • (f&#x012B; or f&#x0113;) Greek phi; capital, &#x03A6;. <b>1</b>. Symbol for porosity, also
    295 bytes (44 words) - 09:43, 22 August 2020
  • ...o make the fundamental period larger. Adding extra zero traces before an ''F,k'' or ''p'',&#x03C4; transform to prevent [[Special:MyLanguage/Dictionary:
    382 bytes (52 words) - 23:15, 1 November 2017
  • [[File:Segf22.jpg|thumb|400px|FIG. F-22. <b>Fourier transform theorems.</b>]] ...ective Fourier transforms ''H''<sub>1</sub>(''f'') and ''H''<sub>2</sub>(''f''),
    1 KB (158 words) - 17:44, 12 August 2020
  • <center><math>T=\frac{1}{f}=\frac{\lambda}{V}=\frac{2\pi}{\omega}</math></center> where ''f''=frequency, <math>\lambda</math>=wavelength, and ''V''=phase velocity. See
    802 bytes (111 words) - 21:15, 14 April 2019
  • ...uage/Dictionary:percent_frequency_effect_(PFE)|<b>''P''</b>''ercent'' <b>''F''</b>''requency'' <b>''E''</b>''ffect'']] (q.v.).
    242 bytes (32 words) - 13:59, 8 March 2018
  • <b>P</b>rompt <b>F</b>ission <b>N</b>eutron log.
    148 bytes (24 words) - 14:11, 8 March 2018
  • ...ther mixed-phase wavelets can also be made from these component doublets. (f) ''Z''-plane plot of the roots of the autocorrelation function for the fore
    3 KB (529 words) - 11:55, 9 March 2018
  • ...equivalent to a time shift of <math> \frac {\phi}{2 \pi f}</math>, where ''f''=frequency of the respective component being shifted. Phase shifts result
    489 bytes (73 words) - 19:19, 12 March 2018
  • (f&#x0113; o fi) A particle scale of size; <math>\phi = - {\log}_2 S</math>, w
    306 bytes (46 words) - 10:58, 16 March 2020
  • (f&#x0113; o fi) A particle scale of size; <math>\phi = - {\log}_2 S</math>, w
    246 bytes (40 words) - 10:58, 16 March 2020
  • <center><math>f(lx+my+nz\pm Vt)</math></center>
    573 bytes (90 words) - 13:51, 17 February 2019
  • ...B4;; in this case ''V''<sub>NMO</sub>&#x003C;''V''<sub>vertical</sub>; <b>(f)</b> wavefront for tilted symmetry axis; <b>(g)</b> wave equations for tran
    4 KB (595 words) - 12:30, 21 September 2020
  • ..., ''T'' the absolute temperature, ''n'' the number of molar equivalents, ''F'' the Faraday, and ''J''<sub>''o''</sub> the exchange current density, all
    639 bytes (89 words) - 21:32, 19 April 2019
  • ...treatment, such as a portion of a gather to be muted or a portion of an ''f''&#x2013;''k'' section to be muted. <b>2</b>. Representation of a fault sur
    399 bytes (63 words) - 12:51, 8 May 2019
  • ...A power-density versus frequency relationship. The power spectrum ''P''(''f'') is the square of the amplitude-frequency response or the Fourier (cosine ...'P'' ' (''f''), where ''P''(''f'') is the power density at the frequency ''f'':
    614 bytes (86 words) - 13:13, 29 March 2019
  • If ''x''<sub>''s''</sub> is a singular point of ''f''(''x'') and <math> a < x_s < b </math>, then the principal value is ...lon \to x} \{ \int_a^{x_s -\varepsilon} f(x) dx + \int_{x_s+\varepsilon}^b f(x) dx \} </math>.</center>
    413 bytes (71 words) - 16:53, 14 March 2019
  • {{#category_index:P|probability functions, ''F''(''x'')}}
    193 bytes (22 words) - 11:00, 16 March 2020
  • ...ng, (e) ability to restart in case of interruptions and error conditions, (f) automatic monitoring to ascertain that devices and the computing are opera
    997 bytes (142 words) - 07:47, 13 July 2018
  • ...lei precess about the Earth&#x2019;s magnetic field ''H'' at a frequency ''f''<sub>''L''</sub> (<b>Larmor frequency</b>), ...;s magnetic field. For the normal Earth field of about 50 000 nanotesla, ''f''<sub>''L''</sub>=2100 Hz. As the protons gradually relax into random orien
    1 KB (181 words) - 21:20, 27 January 2018
  • ...\alpha \lambda}{\pi} = \frac{hT}{\pi} = \frac{\delta}{\pi} = \frac{2\Delta f}{f_\mathrm{r}} </math></center> where ''V'', ''f'', ''&lambda;'', and ''T'' are, respectively, velocity, frequency, waveleng
    3 KB (497 words) - 11:00, 29 November 2020
  • &#x03C9;&#x03BA;, compared to <b>angular frequency</b>, &#x03C9;=2&#x03C0;''f''=2&#x03C0;/''T''.
    222 bytes (31 words) - 16:53, 22 January 2018
  • <math> f(x) = (x/{\alpha}) e^{-x^2/\alpha}, x \geq 0, \alpha > 0,</math>
    607 bytes (83 words) - 23:42, 10 January 2018
  • <center><math>f(t)=\left( \frac{1}{\pi} \right) \left(\frac{\varepsilon}{t^2+\varepsilon^2}
    649 bytes (81 words) - 13:06, 8 May 2017
  • ...except for the effect of lightning currents in exposed surface rocks. (<b>f</b>) <b>Pressure</b> (or <b>piezo</b>) <b>remanent magnetization</b> (<b>PR
    2 KB (253 words) - 01:25, 11 June 2017
  • ...onary:fault|''fault'']] and Figure [[Special:MyLanguage/Dictionary:Fig_F-3|F-3]].
    234 bytes (27 words) - 16:09, 27 July 2017
  • ...ecial:MyLanguage/Dictionary:radio_frequency_(RF)|<b>''R''</b>''adio'' <b>''F''</b>''requency'']] (q.v.).
    207 bytes (27 words) - 17:02, 1 September 2017
  • <b>1</b>. <b>R</b>equest <b>F</b>or <b>C</b>omments. <b>2</b>. <b>R</b>e<b>F</b>lection <b>C</b>oefficient.
    207 bytes (39 words) - 17:02, 1 September 2017
  • <b>R</b>equest <b>F</b>or <b>P</b>roposal; an invitation to submit a request for funding, usual
    226 bytes (37 words) - 17:02, 1 September 2017
  • <b>R</b>epeat <b>F</b>ormation <b>T</b>ester: The primary method of recovering fluid pressures
    365 bytes (54 words) - 17:02, 1 September 2017
  • The amplitude ''f(t)'' of the Ricker wavelet with peak frequency ''f<sub>M'' at time ''t'' is given by, :<math>f(t) = (1-2 \pi^2 f_{_{M}}^2 t^2) e^{-\pi^2 f_{_{M}}^2 t^2}</math>.
    2 KB (289 words) - 23:58, 18 January 2020
  • ...i-valued functions are single-valued on each Riemann surface. Named for G. F. B. Riemann (1826&#x2013;1866), German mathematician.
    338 bytes (46 words) - 17:06, 1 September 2017
  • ...the right (clockwise). See Figure [[Special:MyLanguage/Dictionary:Fig_F-3|F-3]].
    257 bytes (34 words) - 14:45, 8 August 2017
  • <b>1</b>. A value of ''x'' that satisfies the equation ''F''(''x'')=0. <b>2</b>. Relatively light crustal material projecting down int
    391 bytes (51 words) - 14:50, 8 August 2017
  • ...19;) A scale of earthquake intensity devised in 1878 by M. S. de Rossi and F. A. Forel. Compare [[Special:MyLanguage/Dictionary:Mercalli_scale|''Mercall
    331 bytes (45 words) - 07:14, 12 April 2019
  • ...iderably with location. See Figure [[Special:MyLanguage/Dictionary:Fig_F-3|F-3]].
    271 bytes (35 words) - 11:40, 3 November 2017
  • ...irst2=N.|last3=Kunz|first3=T.|last4=Nicoletis|first4=L.|last5=Rocca|first5=F.|title=3-D Modeling Project: 3rd report|journal=The Leading Edge|volume=14|
    2 KB (257 words) - 12:00, 18 April 2018
  • ...isplacement on a fault. See Figure [[Special:MyLanguage/Dictionary:Fig_F-2|F-2]]. <b>4</b>. Displacement between source and receiver.
    981 bytes (128 words) - 14:15, 22 September 2017
  • ...e/Dictionary:spherically_focused_log_(SFL)|<b>''S''</b>''pherically'' <b>''F''</b>''ocused'' <b>''L''</b>''og'']].
    274 bytes (34 words) - 01:17, 17 August 2018
  • ...:folding|''folding'']] and Figure [[Special:MyLanguage/Dictionary:Fig_F-17|F-17]]e.
    240 bytes (28 words) - 12:07, 1 June 2017
  • ...site to <b>dextral</b>. See Figure [[Special:MyLanguage/Dictionary:Fig_F-3|F-3]]. From the Latin for &#x2018;&#x2018;left.&#x2019;&#x2019;
    414 bytes (59 words) - 09:00, 21 June 2017
  • ...>\text{skin depth}=\delta=\sqrt{\frac{2}{\sigma\mu\omega}}=503\sqrt{\sigma f}</math>,</center> ...ries/meter, <math>\omega</math>=angular frequency in radians/second, and ''f''=frequency. Also called <b>effective depth</b>.
    771 bytes (109 words) - 10:48, 11 June 2020
  • ...], Fowler (1990, 101), and Figure [[Special:MyLanguage/Dictionary:Fig_F-10|F-10]].
    429 bytes (55 words) - 09:51, 1 February 2018
  • ...s. There is no channel north of 55&#x00B0;N. Named for the <b>SO</b>und <b>F</b>ixing <b>A</b>nd <b>R</b>anging system used for locating aviators downed
    1 KB (209 words) - 21:45, 19 June 2017
  • ...y_filtering|''apparent-velocity filter'']] (q.v.) or frequency-wavenumber (f,k) filter. Also called <b>beam pointing</b>.
    299 bytes (34 words) - 16:16, 13 April 2019
  • <center><math>\frac{1}{r}f\left(r\pm Vt\right)</math>,</center>
    430 bytes (63 words) - 09:58, 6 September 2017
  • ...T</b> if the source is at ''E'', <b>broadside L</b> if the source is at ''F'', and <b>cross</b> if some geophones are at right angles (''G''&#x0020;''t ...y:Fig_S-18|S-18]]. See also Figure [[Special:MyLanguage/Dictionary:Fig_F-1|F-1]] for fan shooting and Figure [[Special:MyLanguage/Dictionary:Fig_T-4|T-4
    2 KB (407 words) - 08:48, 25 June 2018
  • ...&#x03B1; is the angle which the line of sight makes with the horizontal, ''F'' is the stadia interval factor (often 100), and ''X'' is the distance on t
    680 bytes (111 words) - 05:26, 29 January 2018
  • ...basic measurement, often 0&#x00B0;C. The petroleum industry uses 60&#x00B0;F (15.5&#x00B0;C) as its standard temperature for measurement of oil volumes.
    320 bytes (44 words) - 03:37, 28 October 2017
  • (st&#x014D;lt) A migration method in the ''f,k'' domain assuming constant velocity. Vertical stretching before Fourier t
    333 bytes (43 words) - 14:19, 16 October 2017
  • ...edominantly horizontal. See Figure [[Special:MyLanguage/Dictionary:Fig_F-3|F-3]].
    247 bytes (30 words) - 10:46, 4 June 2018
  • f as in '''f'''it, di'''ff'''er i as in '''i'''f, b'''i'''t
    1 KB (202 words) - 15:48, 20 December 2011
  • <tr><td>[[Dictionary:Fig_F-3|Fault types (F-3)]]</td><td align="right">132</td></tr> <tr><td>[[Dictionary:Fig_F-8|Filtering types (F-8)]]</td><td align="right">138</td></tr>
    9 KB (1,280 words) - 15:48, 20 December 2011
  • A <b>S</b>hallow <b>U</b>nderground <b>R</b>eflection <b>F</b>easibility diagram that shows the shallowest possible depth of seismic o
    319 bytes (50 words) - 10:13, 13 October 2017
  • [[Media:Append_f.pdf|Appendix F: Map and Rock Symbols]]
    682 bytes (106 words) - 15:48, 20 December 2011
  • ...balls&#x2019;&#x2019; (see Figure [[Special:MyLanguage/Dictionary:Fig_F-10|F-10]]) that indicate the type of faulting involved in earthquakes.
    274 bytes (35 words) - 08:32, 18 October 2017
  • Aminzadeh, F., Burkhard, N., Kunz, T., Nicoletis, L., and Rocca, F., 1995, 3-D modeling project: 3rd report: The Balch, A. H. and Smolka, F. R., 1970, Plane and spherical Voigt waves: Geophysics, 35, 745&ndash;761.<
    40 KB (5,282 words) - 17:45, 23 February 2016
  • ...tance (offset) and ''t''=arrival time. <b>(b)</b> Its tau-p transform is ''F''(&#x03C4;,''p'') where ''p''=''dt''/''dx''=1/''V''<sub>''a''</sub> and &#x
    2 KB (282 words) - 09:50, 22 August 2020
  • For an <math> N</math> times differentiable function <math> f(x)</math> and for <math> x</math> and <math> a </math> in an open <center> <math> f(x) = \sum_{n=0}^{N-1} \frac{f^{(n)}(a)}{n!} (x - a)^n + R_N</math> </center>
    7 KB (1,252 words) - 09:27, 20 June 2017
  • ...e of strike-slip fault; see Figure [[Special:MyLanguage/Dictionary:Fig_F-4|F-4]].
    206 bytes (26 words) - 17:08, 10 August 2018
  • ...change in the ''j'' direction of the gradient in the ''i'' direction is ''F<sub>ij</sub>''.
    621 bytes (96 words) - 16:34, 10 May 2017
  • ...unit (bed) by a fault. See Figure [[Special:MyLanguage/Dictionary:Fig_F-2|F-2]].
    242 bytes (33 words) - 14:19, 26 August 2017
  • ...guage/Dictionary:Fig_F-3|F-3]] and [[Special:MyLanguage/Dictionary:Fig_F-4|F-4]].
    352 bytes (49 words) - 14:17, 26 August 2017

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