Page 58 - Carbonate Facies in Geologic History

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Upper

of the
1500 2000 2500 top

... '!=):~ -- to

_ close
-
-,..:1 - reef is

- Canyon

~+-
buildups.

off the

scale exaggerated
'. Fig. II-22. Subsurface correlation of electric logs across Middle Wolfcampian shelf margin off the Kelly-Snyder field, Scurry County, Texas from Van topography Pennsylvanian. Depositional dip on top of Wolfcamp reef is less than three degrees. Basin was about 150 m deep at end of Wolfcamp carbonate

I 4- depositional

Vertical down

Mile 1 of clinoform buildup. Original illustration in Bulletin of American Association of Petroleum Geologists (1958)

tracing

--Canyon 112 Shows

Fig. 2).
111.

(1972,

Siclen