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Geologic Map of the Fortified Peak 7.5' Quadrangle, Southeastern Pinal County, Arizona, v. 2.0

dc.contributor.authorOrr, T.R.
dc.contributor.authorDeLong, S.B.
dc.contributor.authorSpencer, J.E.
dc.contributor.authorRichard, S.M.
dc.date.accessioned2018-11-13T23:25:45Z
dc.date.available2018-11-13T23:25:45Z
dc.date.issued2004
dc.identifier.citationOrr, T.R., DeLong, S.B., Spencer, J.E., and Richard, S.M., 2004, Geologic Map of the Fortified Peak 7.5' Quadrangle, Southeastern Pinal County, Arizona: Arizona Geological Survey Digital Geologic Map DGM-18, version 2.0, map scale 1:24,000.
dc.identifier.urihttp://hdl.handle.net/10150/630926
dc.descriptionThis map details the bedrock geology, structural geology, surficial geology, geomorphology, and geologic hazards of the Fortified Peak 7.5'quadrangle located north of Oracle Junction along the Falcon Divide separating the San Pedro River watershed from the Canada del Oro watershed in Pinal County, Arizona. The northern part of the quadrangle includes the southern portion of the Black Mountains, a dominantly granitic bedrock highland of about 30-square miles that consists of small, rugged peaks with elevations up to about 5600 feet. The maximum elevation in the study area is just below 5000 feet. The southern two-thirds of the quadrangle encompasses a broad, low-relief piedmont of eroded Tertiary basin-filling sediments mantled by Quaternary alluvial materials of variable age. The minimum elevation in the study area is about 3300 feet. Most of the area is undeveloped ranchland, and is a combination of leased state trust land and private land. Urbanization has not occurred in this area as of publication, but proposed housing development along the Willow Springs road in the eastern portion of the quad exemplifies the need to understand the geologic setting and potential hazards of the Fortified Peak quadrangle. Bedrock and surficial geology in the study area were mapped over a period from October 2001 to June 2002 as part of a multiyear mapping program directed at producing complete geologic map coverage for the Phoenix-Tucson metropolitan corridor. The primary product resulting from mapping in the study area is this 1:24,000 layout scale geologic map. Purpose: This new geologic mapping north of Tucson is part of continuing efforts by the AZGS to map the geology of the Phoenix - Tucson urban corridor. This map builds on and complements previous and concurrent surfical geologic mapping efforts in the Tucson area. Supplemental_Information: The mapping was done under the joint State-Federal STATEMAP program, as specified in the National Geologic Mapping Act of 1992, and was jointly funded by the Arizona Geologic Survey and the U.S. Geological Survey under STATEMAP Program Contract #01HQAG0098. The view and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government.
dc.language.isoen
dc.publisherArizona Geological Survey (Tucson, AZ)
dc.relation.ispartofseriesDGM-18
dc.relation.urlhttps://library.azgs.arizona.edu/item/ADGM-1552430320749-538
dc.rightsArizona Geological Survey. All rights reserved.
dc.subjectArizona Geological Survey Digital Geologic Maps
dc.subjectCamp Grant Wash
dc.subjectBlack Mountain
dc.subjectFalcon Divide
dc.subjectFalcon Valley
dc.subjectArizona
dc.subjectPinal County
dc.subjectFortified Peak
dc.subjectStar Flat detachment
dc.subjectSan Manuel Formation
dc.subjectOracle Granite
dc.subjectCloudburst Formation
dc.subjectsurficial geology
dc.subjectbedrock geology
dc.subjectdigital geologic map
dc.subjectdigital cartography
dc.subjectTertiary
dc.subjectQuaternary
dc.subjectPhoenix-Tucson urban corridor
dc.subjectbasin-fill
dc.subjectpiedmont
dc.titleGeologic Map of the Fortified Peak 7.5' Quadrangle, Southeastern Pinal County, Arizona, v. 2.0
csdgm.bounding.west-111
csdgm.bounding.east-110.875
csdgm.bounding.north32.75
csdgm.bounding.south32.625
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.dateFOA2018-11-13T23:25:45Z


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