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dc.contributor.authorShipman, T.C.
dc.contributor.authorFerguson, C.A.
dc.date.accessioned2018-11-13T23:26:37Z
dc.date.available2018-11-13T23:26:37Z
dc.date.issued2020
dc.identifier.citationShipman, T.C., and Ferguson, C.A., 2020, Geologic Map of the McGrew Spring 7.5' Quadrangle, Cochise County, Arizona: Arizona Geological Survey Digital Geologic Map DGM-35, version 2.0, map scale 1:24,000.
dc.identifier.urihttp://hdl.handle.net/10150/630936
dc.descriptionThe McGrew Springs 7.5' Quadrangle is located in northwestern Cochise County about 45 miles southeast of Tucson, Arizona and lies south of the town of Benson. The western portion of the map encompasses a portion of the eastern flank of the Whetstone Mountains which is part of the Coronado National Forest. Kartchner Caverns State Park is located in the northwest corner of the map. The majority of the map area is covered by Quaternary fan and Tertiary basin fill deposits. Bedrock and surficial geology in the study area were mapped between October, 2002 and June, 2003 as part of a multiyear mapping program directed at producing geologic map coverage for the Karchner Caverns State Park and surrounding areas. Quaternary and late Tertiary deposits in the McGrew Springs 7.5' Quadrangle were partially mapped by Gray (1965) however this map does not separate the quaternary deposits from each other. Multiple phases of Quaternary alluvial fans top late Tertiary valley fill. Large outcrops of valley fill are exposed in the southeastern portion of the map which could be related to structure, however, there was no direct evidence for this structure in the mapped deposits.
dc.language.isoen
dc.publisherArizona Geological Survey (Tucson, AZ)
dc.relation.ispartofseriesDGM-35
dc.relation.urlhttp://repository.azgs.az.gov/uri_gin/azgs/dlio/566
dc.rightsArizona Geological Survey. All rights reserved.
dc.subjectArizona Geological Survey Digital Geologic Maps
dc.subjectSan Pedro River
dc.subjectMcGrew Spring
dc.subjectArizona
dc.subjectCochise County
dc.subjectWhetstone Mountains
dc.subjectKartchner Caverns
dc.subjectsurficial geology
dc.subjectbedrock geology
dc.subjectdigital geologic map
dc.subjectdigital cartography
dc.subjectPaleoproterozoic
dc.subjectMesoproterozoic
dc.subjectCambrian
dc.subjectDevonian
dc.subjectPennsylvanian
dc.subjectPaleozoic
dc.subjectCretaceous-Jurassic
dc.subjectPliocene
dc.subjectMiocene
dc.subjectEarly Pleistocene
dc.subjectPleistocene
dc.subjectHolocene
dc.subjectLate Holocene
dc.subjectPinal Schist
dc.subjectgranitoids
dc.subjectBolsa Quartzite
dc.subjectAbrigo Formation
dc.subjectMartin Formation
dc.subjectEscabrosa Limestone
dc.subjectHorquilla Limestone
dc.subjectdikes
dc.subjectSt. David Formation
dc.subjectfolded rock
dc.subjectsilicified breccia zone
dc.subjectMcGrew Spring Fault
dc.subjectvalley fill
dc.subjectalluvium
dc.subjectpediment
dc.titleGeologic Map of the McGrew Spring 7.5' Quadrangle, Cochise County, Arizona, v. 2.0
csdgm.bounding.west-110.375
csdgm.bounding.east-110.25
csdgm.bounding.north31.875
csdgm.bounding.south31.75
dc.description.collectioninformationDocuments in the AZGS Document Repository collection are made available by the Arizona Geological Survey (AZGS) and the University Libraries at the University of Arizona. For more information about items in this collection, please contact azgs-info@email.arizona.edu.
refterms.dateFOA2020


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