Geology of the Permian Basin, West Texas Area
Category : Articles
An overview of the geology of Trans-Pecos Texas and the Llano Uplift.
Precambrian rocks underlie Texas, which are more than 600 million years old. The deformed ancient volcanic and intrusive igneous rocks and sedimentary rocks were formed early in the Earth’s history. They are now exposed in the Llano Uplift and in a few small areas in Trans-Pecos Texas.