Journal of the Graduate Research Center


In the Waxahachie Quadrangle, in the northern part of Ellis County, Texas, the Cretaceous Austin and Taylor formations crop out. The contact between these units is uncomfortable and marked by a one-inch red clay bed containing phosphate pebbles. Much of the eastern part of the area is overlain by terrace deposits. Structurally, the quadrangle is part of the homoclinal coastal plain, but is broken by normal faults with throws of up to 100 feet. Most of the faults strike northeast and dip steeply northwest. A few of these dip southeast and a few faults strike northwest. Southwest of Rockett a northeast-trending graben of Taylor in Austin chalk is well exposed along Brushy Creek. Joints with northeast and northwest trends are numerous.

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