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Figure 1 - Collier Flats Field, Comanche County, Kansas -- production is from an oolite shoal that evidently developed on a fault scarp over an underlying basement fault defined by the gradient in the residual magnetic contours (blue). Structure contours (red) are on top of Pennsylvanian Swope limestone. Graphics courtesy of Parker Gay.
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Figure 1 - Collier Flats Field, Comanche County, Kansas -- production is from an oolite shoal that evidently developed on a fault scarp over an underlying basement fault defined by the gradient in the residual magnetic contours (blue). Structure contours (red) are on top of Pennsylvanian Swope limestone. Graphics courtesy of Parker Gay.