Evolution of the Southern San Joaquin basin and mid-tertiary "transitional" tectonics, Central California

Article Abstract:

A history of tectonic activity and sedimentation in the Southern San Joaquin Basin (SSJB) during the Cenozoic was developed from comprehensive analysis of paleomagnetic, seismic, biostratigraphic, field, and borehole data. Deformation of the Southern California region along the North American plate margin occured in five Oligocene-Miocene phases involving alternating periods of subsidence and upliftment. In mid-Tertiary, the San Joaquin/Tehachapi extensional terrane was located between the Western Mojave and Western California terranes. Other findings indicate a lower age for the San Andreas fault.

Geology, Stratigraphic, Stratigraphy, Cenozoic Era, San Joaquin Valley

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Evolution of the Kangmar Dome, southern Tibet: structural, petrologic, and thermochronologic constraints

Article Abstract:

Research is presented concerning the contractional and extensional deformational history of the Kangmar Dome in southern Tibet. The results of thermobarometric, structural and thermochronologic investigations are discussed.

Tibet, Petrology

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Structural setting of Western Monferrato

Article Abstract:

Research is presented concerning the kinematic formation of the Alps-Apennines junction zone in northwest Italy. The results of upthrusting and faulting in this region are discussed.

Italy, Faults (Geology)

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