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Structural Geology

January 01, 2001


This study presents a regional structural analysis and a stratigraphic study in Hidalgo and Querétaro states, east-central Mexico, where strata of the Sierra Madre Oriental foreland fold-and-thrust belt are structurally juxtaposed against Middle (?) and Upper Jurassic back-arc sequences.

Rocks of the San Juan de la Rosa Formation were apparently affected by major compressive deformation during the Early Cretaceous (Nevadian?) and Laramide orogenies. Toward the east, the style of deformation is that of a typical foreland fold-and-thrust belt, whose major thrust faults are located at the Zimapán Basin margins flanked by the El Doctor and Valles-San Luis Potosí carbonate platforms. Below the El Doctor thrust, at least seven thrust faults are exposed that crosscut the middle Cretaceous rocks and the enveloping Upper Jurassic-Lower Cretaceous and Upper Cretaceous marly shaly beds in the form of a duplex.

The style of deformation between the two carbonate platforms is probably thin-skinned. Speculative, semibalanced cross sections indicate an average shortening between the Zimapán Basin margins of 39.4% of its initial width. Depth to the sole thrust is estimated to be about 2000 m below the present sea level.

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Figures & Tables


Memoir - AAPG

The Western Gulf of Mexico Basin: Tectonics,Sedimentary Basins, and Petroleum Systems

Claudio Bartolini
Claudio Bartolini
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Richard T. Buffler
Richard T. Buffler
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Abelardo Cantú-Chapa
Abelardo Cantú-Chapa
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American Association of Petroleum Geologists
ISBN electronic:
Publication date:
January 01, 2001




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