Buried Hill at Wilcox-Carrizo Contact in East Texas

Abstract
Reprinted from American Association of Petroleum Geologists Bulletin, v. 35, no. 8, 1951. A recently discovered buried hill, at least 77 feet high, is composed of strata of the Wilcox group (lower Eocene) and covered on its flanks by cross-bedded sands of the lower Carrizo and at the top by level-bedded shales and silts of the upper Carrizo formation. Peculiar small funnel-shaped pits filled with Carrizo sand extend into the underlying Wilcox ball clay at the peak of the hill. Other extensions fill shrinkage cracks of the clay. These and other features of the contact demonstrate a disconformity at the base of the Carrizo sand caused by rejuvenation that occurred shortly before Carrizo sand deposition.
Authors
Henryk B. Stenzel
Citation

Stenzel, H. B., 1951, Buried Hill at Wilcox-Carrizo Contact in East Texas: The University of Texas at Austin, Bureau of Economic Geology, Report of Investigations No. 10, 14 p.

Code
RI010
Number
10
Number of figures
7
Number of pages
14
Publisher
The University of Texas at Austin, Bureau of Economic Geology
Series
Report of Investigation
Year
1951