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  • ...esistivity values over a limited range of measurement parameters. For some EM models apparent resistivity may be undefined or multivalued.
    3 KB (368 words) - 13:38, 11 March 2018
  • ...nction of distance and depth, derived from profiles of surface or airborne EM data. See also [[Special:MyLanguage/Dictionary:parasection|''parasection'']
    327 bytes (40 words) - 17:24, 16 July 2017
  • ...give rise to false IP anomalies. Also called <b>electromagnetic</b> or <b>EM coupling. Resistive coupling</b> in IP surveying is caused by leakage betwe
    2 KB (311 words) - 07:45, 2 October 2017
  • ...electrical current flow observed in a magnetotelluric or controlled-source EM survey caused by lateral variations in the local resistivity structure. Als
    405 bytes (49 words) - 16:18, 6 March 2018
  • '''1'''. A simplification of the wave equation for EM-waves in a good conductor:
    938 bytes (138 words) - 08:52, 17 July 2017
  • {{#category_index:E|electromagnetic method (EM method)}}
    1 KB (176 words) - 16:05, 29 July 2018
  • A tool that measures the velocity and attenuation of EM waves using microwaves. Occasionally used to identify hydrocarbon zones.
    276 bytes (34 words) - 05:07, 10 April 2019
  • {{#category_index:E|EM}}
    230 bytes (29 words) - 16:54, 7 April 2019
  • (em, &#x2202; nom&#x2019; &#x2202;d &#x2202;r) An instrument for measuring the
    301 bytes (39 words) - 07:51, 12 April 2019
  • {{#category_index:E|EM coupling}}
    168 bytes (18 words) - 13:44, 10 April 2019
  • {{#category_index:E|EM 37}}
    181 bytes (22 words) - 17:17, 29 July 2018
  • (em&#x2019; yo l&#x0101;t,) To have the same input/output characteristics as a
    326 bytes (46 words) - 13:20, 5 February 2017
  • A vector potential <math>\Pi</math> from which both the EM vector potential <b>A</b> and the scalar potential <math>\phi</math> can be
    530 bytes (77 words) - 15:19, 23 July 2017
  • {{#category_index:H|horizontal coplanar EM (HCP)}}
    241 bytes (26 words) - 13:01, 25 July 2017
  • ...drature components are measured. Also called <b>horizontal coplanar, Ronka EM</b>, and <b>slingram</b>. See Figure [[Special:MyLanguage/Dictionary:Fig_E-
    533 bytes (72 words) - 13:22, 25 July 2017
  • ...is &#x03B2;=(&#x03BC;&#x03C3;/2''t'')<sup>1/2</sup>''R''. For an airborne EM system flown at height ''h'' over a thin sheet of conductivity-thickness pr
    1 KB (176 words) - 20:03, 12 August 2018
  • ...tenna, fields vary predominantly as the inverse cube of the distance. With EM methods, near-field implies receiver-transmitter separation less than three
    857 bytes (119 words) - 03:25, 1 August 2017
  • (pr&#x0113; em&#x2019; fa sis) <b>1</b>. Frequency filtering before processing (as in fiel
    378 bytes (50 words) - 09:57, 7 April 2019
  • ...HLEM,_HEM)|''horizontal-loop method (HLEM)'']] (q.v.) Also called <b>Ronka EM</b>. See Figure [[Special:MyLanguage/Dictionary:Fig_E-7|E-7]].
    346 bytes (44 words) - 08:52, 1 February 2018
  • ..., A., Schniggenfittich, H., and Strack, K. M., 1991, Long-offset transient EM sounding north of the
    40 KB (5,282 words) - 16:45, 23 February 2016

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