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GSA Special Papers
Extensional Tectonics of the Southwestern United States: A Perspective on Processes and Kinematics
Author(s)
Copyright:
© 1986 Geological Society of America
Geological Society of America
Geological Society of America

Volume
208
ISBN print:
9780813722085
Publication date:
January 01, 1986
Book Chapter
Patterns and modes of early Miocene crustal extension, central Mojave Desert, California
Author(s)
-
Published:January 01, 1986
The upper crust of the central Mojave Desert was extended and thinned during early Miocene time by three processes (1) low-angle normal faulting; (2) high-angle normal faulting in several episodes; and (3) extension fracturing. The first two processes appear to have affected the entire breadth of the extended area, but the third process was restricted to narrow zones. Processes 1 and 2 developed in at least two half-grabens that were kinematically linked by a transform fault. Each half-graben contains a family of similarly oriented high-angle normal faults that facilitated the extension of the upper crust. Evidence from one of the...
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Index Terms/Descriptors
- brittle deformation
- California
- Cenozoic
- crust
- decollement
- deformation
- displacements
- ductility
- extension tectonics
- faults
- grabens
- lower Miocene
- Miocene
- Mojave Desert
- Neogene
- normal faults
- strike-slip faults
- structural geology
- tectonics
- Tertiary
- transform faults
- United States
- central Mojave Desert
- Dagett Terrane
Latitude & Longitude
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