Structure of southern Indio Mountains, Hudspeth County, Texas

Date

1953

Authors

Allday, Edwin, 1927-

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Abstract

The Indio Mountains are related stratigraphically to the Mexican Geosyncline, structurally to the Sierra Madre Oriental and the Basin-and-Range Province. Cretaceous sedimentary formations, approximately 5000 feet thick, are overstepped by Tertiary volcanic rocks. The Laramide orogeny produced compressional folds with a NW elongation, and several thrust faults. Reversal of thrusting occurs in this region; two major thrusts have displacements in opposite directions. Normal faulting occurred in late Tertiary time subsequent to a period of Tertiary volcanism. The major normal faults, with maximum throws of approximately 150 1500 feet, trend NW. Faults with a general E trend do not exceed 50 feet in throw

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