The Black Shale Basin of West Texas

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Title: The Black Shale Basin of West Texas
Author: Cole, Charles Taylor, 1913-
Abstract: The Black Shale Basin of West Texas covers an area in excess of 21,000 square miles and includes the region from Terrell and Pecos Counties eastward to Menard and Kimble Counties. It extends from Real, Edwards, and Val Verde northward beyond Glasscock and Upton Counties. This basin includes such local basins as the "Midland Basin," and "Val Verde Basin," of Frank E. Lewis, the "Sheffield Channel," and the "Kerr Basin." Reasons are given for the belief that the black shale sediments in this basin were derived from rocks south of this area. The shale ranges in age from Bend (lower Pennsylvanian) through Clear Fork (middle Permian). The shale of the Midland Basin has been divided into three distinct zones. Pre-Cretaceous erosion has removed the offlapping Permian shale in the extreme southern portion of the area leaving Pennsylvanian directly beneath the Trinity. The problem of stratigraphy is complicated by gradation and lack of diagnostic fossils. There is a great divergence of opinion as to correlative formational units derived from a study of the well cuttings.
Department: Geological Sciences
Subject: Black Shale Basin West Texas Sediments Stratigraphy Shale Geology--Texas, West Shale--Texas, West Geology, Stratigraphic
URI: http://hdl.handle.net/2152/18649
Date: 1939-08

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