Geologic Map of the Rincon Valley Area, Pima County, Arizona, v. 2.0

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Author
Richard, S.M.
Spencer, J.E.
Youberg, A.
Ferguson, C.A.
Issue Date
2020
Keywords
Arizona Geological Survey Digital Geologic Maps
Cambrian
Devonian
Pennsylvanian
Permian
Jurassic
cretaceous
Proterozoic
Paleozoic
Mesozoic

Metadata
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Citation
Richard, S.M., Spencer, J.E., Youberg, A., and Ferguson, C.A., 2020, Geologic Map of the Rincon Valley Area, Pima County, Arizona: Arizona Geological Survey Digital Geologic Map DGM-44, version 2.0, map scale 1:24,000, 11 p., 1 map sheet and metadata.
Publisher
Arizona Geological Survey (Tucson, AZ)
Description
The bedrock geology of the map area is dominated by several sets of rock units, as follows: (1) Variably mylonitic granitic and gneissic bedrock at the north flank of the map area forms the Rincon Mountains and the footwall of the Catalina detachment fault. The Catalina detachment fault is a Tertiary, moderately to gently southwest dipping normal fault that has tens of kilometers of top-to-the-southwest displacement (>27.5 km displacement estimated by Dickinson, 1991). (2) Complexly deformed Paleozoic carbonate and siliciclastic strata and Proterozoic granitoids and diabase are exposed at the southwestern foot of the Rincon Mountains and above the Catalina detachment fault. (3) The Oligo-Miocene Pantano Formation, which consists of variably tilted conglomerate, sandstone, mudstone, and andesitic lava flows. Farther to the southwest, the Empire Mountains consist of (4) structurally complex Proterozoic and Paleozoic rocks of diverse composition, and (5) a deformed, regionally southeast dipping sequence of siliciclastic sedimentary rocks of the lower Bisbee Group. In some extensive areas, Quaternary stream incision has uncovered unconsolidated to poorly consolidated clastic sedimentary deposits that are typically mantled by colluvium. These deposits are shown on plate 1 as Tertiary and Quaternary deposits, undivided.
URI
http://hdl.handle.net/10150/630948
Additional Links
https://library.azgs.arizona.edu/item/ADGM-1599607322039-942
Language
en
Series/Report no.
DGM-44
Rights
Arizona Geological Survey. All rights reserved.
Collection Information
Documents 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.
North Bounding Coordinate
32.16
South Bounding Coordinate
32.09
West Bounding Coordinate
-110.75
East Bounding Coordinate
-110.57
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