Isostatic uplift, crustal attenuation, and the evolution of an extensional detachment system in southwestern Nevada

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Geological and geophysical evidence supports the existence of extensional detachments, between the Sheep Range and Death Valley. It is proposed that geographically separated pieces of detachments between Death Valley and the Sheep Range are parts of a regional detachment system that has evolved since the Miocene, and that the system consists of lenses of strata separated by an anastomosing network of low- and high-angle normal faults. This manuscript emphasizes the probability that isostatic uplift within the region of greatest crustal attenuation in this system, the Bullfrog Hills core complex, controlled the evolution of the detachment system between the breakaway zone ... continued below

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8 p.

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Scott, R.B. December 31, 1987.

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Description

Geological and geophysical evidence supports the existence of extensional detachments, between the Sheep Range and Death Valley. It is proposed that geographically separated pieces of detachments between Death Valley and the Sheep Range are parts of a regional detachment system that has evolved since the Miocene, and that the system consists of lenses of strata separated by an anastomosing network of low- and high-angle normal faults. This manuscript emphasizes the probability that isostatic uplift within the region of greatest crustal attenuation in this system, the Bullfrog Hills core complex, controlled the evolution of the detachment system between the breakaway zone a the Sheep Range and the core complex. Features in this system are described from east to west, which is the apparent direction of tectonic transport.

Physical Description

8 p.

Notes

NTIS, PC A02/MF A01 - OSTI; OSTI as DE91002375

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  • Workshop on late Cenozoic evolution of the Southern Great Basin, Reno, NV (United States), 10-13 Nov 1987

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  • Other: DE91002375
  • Report No.: CONF-8711350--3
  • Grant Number: AI08-78ET44802
  • Office of Scientific & Technical Information Report Number: 137926
  • Archival Resource Key: ark:/67531/metadc626729

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Office of Scientific & Technical Information Technical Reports

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  • December 31, 1987

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 18, 2016, 6:51 p.m.

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Scott, R.B. Isostatic uplift, crustal attenuation, and the evolution of an extensional detachment system in southwestern Nevada, article, December 31, 1987; Denver, Colorado. (digital.library.unt.edu/ark:/67531/metadc626729/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.