Roberts Mountains allochthon and the western margin of the Cordilleran miogeocline in the Northern Ritter Range pendant, eastern Sierra Nevada, California

Title:
Roberts Mountains allochthon and the western margin of the Cordilleran miogeocline in the Northern Ritter Range pendant, eastern Sierra Nevada, California
Authors:
Greene, David C.; Stevens, Calvin H.; Schweickert, Richard A.
Citation:
Greene, D. C., Schweickert, R. A., & Stevens, C. H. (1997). Roberts mountains allochthon and the western margin of the cordilleran miogeocline in the northern ritter range pendant, eastern sierra nevada, california. GSA Bulletin, 109(10), 1294-1305.
Publisher:
Geological Society of America Bulletin
DATE ISSUED:
Oct-1997
PERMANENT LINK:
http://hdl.handle.net/2374.DEN/4992; http://hdl.handle.net/2374
Type:
Article
Language:
en_US
Description:
The truncated southwestern edge of the Roberts Mountains allochthon is exposed in the Northern Ritter Range pendant in the eastern Sierra Nevada, structurally overlying parautochthonous rocks of the Cordilleran miogeocline. The Northern Ritter Range pendant exposes units that have the same stratigraphic affinities and structural relationships as rocks of the Antler orogenic belt in Nevada. Paleozoic metasedimentary rocks exposed in the pendant consist of two major units: (1) a structurally complex, disrupted chert and argillite unit interpreted to be correlative with the Roberts Mountains allochthon; and (2) a stratigraphically coherent siliceous and calcareous unit, the Rush Creek sequence, that is interpreted to be part of a transitional outer shelf and slope assemblage of the lower Paleozoic Cordilleran miogeocline. In the Northern Ritter Range pendant, the Roberts Mountains allochthon structurally overlies the Rush Creek sequence along a north-striking, steeply dipping fault zone that may be a preserved remnant of the Roberts Mountains thrust, which in north-central Nevada emplaced the allochthon over outer shelf and slope strata of the Cordilleran miogeocline during the Late Devonian–Early Mississippian Antler orogeny. These stratigraphic and structural belts are truncated on the southwest side of the pendant by the Gem Lake shear zone, a northwest-trending dextral strike-slip fault associated with the Cretaceous Sierra Nevada batholith. The Northern Ritter Range pendant thus defines both the southwestern limit of the Antler orogenic belt and the westernmost exposures of parautochthonous miogeoclinal rocks in the central Cordillera.
ISSN:
00167606
Appears in Collections:
Faculty Publications

Full metadata record

DC FieldValue Language
dc.contributor.authorGreene, David C.en
dc.contributor.authorStevens, Calvin H.en
dc.contributor.authorSchweickert, Richard A.en
dc.date.accessioned2013-01-02T15:37:16Zen
dc.date.accessioned2013-12-18T21:04:33Z-
dc.date.available2013-01-02T15:37:16Zen
dc.date.available2013-12-18T21:04:33Z-
dc.date.created1997-10en
dc.date.issued1997-10en
dc.identifier.citationGreene, D. C., Schweickert, R. A., & Stevens, C. H. (1997). Roberts mountains allochthon and the western margin of the cordilleran miogeocline in the northern ritter range pendant, eastern sierra nevada, california. GSA Bulletin, 109(10), 1294-1305.en_US
dc.identifier.issn00167606en
dc.identifier.urihttp://hdl.handle.net/2374.DEN/4992en
dc.identifier.urihttp://hdl.handle.net/2374-
dc.descriptionThe truncated southwestern edge of the Roberts Mountains allochthon is exposed in the Northern Ritter Range pendant in the eastern Sierra Nevada, structurally overlying parautochthonous rocks of the Cordilleran miogeocline. The Northern Ritter Range pendant exposes units that have the same stratigraphic affinities and structural relationships as rocks of the Antler orogenic belt in Nevada. Paleozoic metasedimentary rocks exposed in the pendant consist of two major units: (1) a structurally complex, disrupted chert and argillite unit interpreted to be correlative with the Roberts Mountains allochthon; and (2) a stratigraphically coherent siliceous and calcareous unit, the Rush Creek sequence, that is interpreted to be part of a transitional outer shelf and slope assemblage of the lower Paleozoic Cordilleran miogeocline. In the Northern Ritter Range pendant, the Roberts Mountains allochthon structurally overlies the Rush Creek sequence along a north-striking, steeply dipping fault zone that may be a preserved remnant of the Roberts Mountains thrust, which in north-central Nevada emplaced the allochthon over outer shelf and slope strata of the Cordilleran miogeocline during the Late Devonian–Early Mississippian Antler orogeny. These stratigraphic and structural belts are truncated on the southwest side of the pendant by the Gem Lake shear zone, a northwest-trending dextral strike-slip fault associated with the Cretaceous Sierra Nevada batholith. The Northern Ritter Range pendant thus defines both the southwestern limit of the Antler orogenic belt and the westernmost exposures of parautochthonous miogeoclinal rocks in the central Cordillera.en_US
dc.language.isoen_USen_US
dc.publisherGeological Society of America Bulletinen_US
dc.relation.ispartofFaculty Publicationsen_US
dc.titleRoberts Mountains allochthon and the western margin of the Cordilleran miogeocline in the Northern Ritter Range pendant, eastern Sierra Nevada, Californiaen_US
dc.typeArticleen_US
dc.contributor.institutionDenison Universityen_US
dc.date.digitized2013-01-02en
dc.contributor.repositoryDenison Resource Commonsen_US
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