Dictionary:Fig C-18

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FIG. C-18. Crooked-line plot (computer drawn). Source points (squares) and geophones are laid out along a road, there being one source point every third geophone group. Midpoints show as dots. A synthetic line made in processing has cross-dashes showing the output trace spacing. The black boxes show midpoint locations that might be combined to make a single trace by projecting (a) perpendicular to the line or (b) along strike. (Courtesy Grant Norpac.)