Geologic Map of the Mount Fagan 7.5' Quadrangle, Eastern Pima County, Arizona, v. 2.0
opensource GIS files
KeywordsArizona Geological Survey Digital Geologic Maps
Santa Rita Mountains
Surficial geologic mapping
Mount Fagan Cauldron
Fort Crittenden Formation
Gardner Canyon Formation
MetadataShow full item record
CitationFerguson, C.A., Youberg, A., Gilbert, W.G., Orr, T.R., Richard, S.M., and Spencer, J.E., 2019, Geologic Map of the Mount Fagan 7.5' Quadrangle, Eastern Pima County, Arizona: Arizona Geological Survey Digital Geologic Map DGM-11, version 2.0, map scale 1:24,000, 36 p., 1 map sheet and metadata.
PublisherArizona Geological Survey (Tucson, AZ)
DescriptionThe Mount Fagan quadrangle is located approximately 30 km southeast of downtown Tucson, and includes the northern terminus of two mountain ranges; of the Santa Rita Mountains in the center and southwest, and the Empire Mountains along the eastern boundary. The northern portion of the quadrangle consists of a gently north-sloping piedmont surface carved into Quaternary basin-fill deposits in the northwest and rolling hills of bedrock in the northeast (Figure 1). The area was mapped during October, 2000 through May, 2001 as part of a multiyear mapping program directed at producing complete geologic map coverage for the Phoenix-Tucson metropolitan corridor. A 1:24,000 scale map is the primary product of this study (Plate 1). 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 Geological Survey and the U.S. Geological Survey under STATEMAP Program Contract #00HQAG0149.
RightsArizona Geological Survey. All rights reserved.
Collection InformationDocuments 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 firstname.lastname@example.org.
North Bounding Coordinate32
South Bounding Coordinate31.875
West Bounding Coordinate-110.75
East Bounding Coordinate-110.625
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Geologic Map of the Southern Part of the Vail 7.5' Quadrangle, Eastern Pima County, Arizona, v. 1.1Richard, S.M.; Spencer, J.E.; Ferguson, C.A.; Youberg, A. (Arizona Geological Survey (Tucson, AZ), 2001)
Stratigraphy and Sedimentology of the Bisbee Group in the Whetstone Mountains, Pima and Cochise Counties, Southeastern ArizonaDickinson, W. R.; Archibald, Lawrence Eben; Schreiber, Joseph F., Jr.; Flessa, Karl; Archibald, Lawrence Eben (The University of Arizona., 1982)The Aptian-Santonian(?) Bisbee Group in the Whetstone Mountains comprises 2375 m of clastic sedimentary rocks and limestones. The basal Glance Conglomerate unconformably overlies the Pennsylvanian-Permian Naco Group. It consists of limestone conglomerates which were deposited in proximal alluvial fan environments. The superadjacent Willow Canyon Formation contains finer grained rocks which were deposited in the distal portions of alluvial fans. The lacustrine limestones in the Apache Canyon Formation interfinger with and overlie these alluvial fan facies. The overlying Shellenberger Canyon Formation is composed mostly of terrigenous rocks derived from westerly terranes. This formation contains thick sequences of fluvio-deltaic facies as well as a thin interval of estuarine deposits which mark a northwestern extension of the marine transgression in the Bisbee -Chihuahua Embayment. The youngest formation (Upper Cretaceous?) in the Bisbee Group, the Turney Ranch Formation, consists of interbedded sandstones and marls which were deposited by fluvial and marine(?) processes.