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Precambrian and Paleozoic stratigraphy; Franklin Mountains, west Texas

David V. LeMone
David V. LeMone
Department of Geological Sciences, The University of Texas at El Paso, El Paso, Texas 79968
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January 01, 1988


The Franklin Mountains are located in far West Texas (ElPaso County) and southernmost central New Mexico (Dons Ana County). The range, when including the North Franklin Mountains (north of Anthony Gap), is 23 mi (38 km) long and less than 5 mi (8 km) wide (Fig. 1). It consists of a linear series of north–south-trending, westward-tilted fault blocks, which are bounded on the east and west by major normal faults. Gravity slides are common throughout the range. The mountains are reasonable examples of the basin-and-range structural and physiographic type. The structure is distinctly different from the thrusted (autochthon and three allochthons) Cretaceus sequence of the northern Chihuahuatrough of the Sierra de Juarez to the south in Mexico. The Texas lineament, the major structural feature separating these disparate northern and southern structural styles, if it exists, would pass through downtown El Paso. Access to the area is by 1-10. Three localities are suggested for examination (Fig. 1). Localities 1 and 2 are on paved, public thoroughfares. Locality 3 (Vinton Canyon) maybe reached from 1-10 at Westway, approximately 3 mi (4.8 km) south of the Texas-New Mexico line, byproceeding eastward on a dirt track toward the mountains. A high-clearance vehicle is required.

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Figures & Tables


DNAG, Centennial Field Guides

South-Central Section of the Geological Society of America

O. T. Hayward
O. T. Hayward
Geology Department, Baylor University, Waco, Texas 76798
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Geological Society of America
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Publication date:
January 01, 1988




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