Buried hill at Wilcox-Carrizo contact in east Texas

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Date

1951

Authors

Stenzel, H. B. (Henryk Bronislaw), 1899-

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Publisher

University of Texas at Austin. Bureau of Economic Geology

Abstract

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.

Description

To obtain a print version of this publication visit: https://store.beg.utexas.edu/ and search for: RI0010. Reprinted from Bulletin of the American Association of Petroleum Geologists, vol. 35, no. 8, August, 1951.

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