Interpreted oblique aerial photograph of part of the west face of the
Culberson Co., Texas. Note downlap of the Grayburg strata on the Cherry Canyon Sandstone
Tongue, the erosional contact between the bedded Grayburg shelf carbonates and the massive
Goat Seep reef, and the large erosional channel cut into the Cutoff and Victorio Peak Fms. Roughly
700 m of section are exposed in this view. DLS = Downlap surface; SB = Sequence boundary.
Photo courtesy of J.F. Sarg and Exxon Production Research Co.