Structural and Stratigraphic Relationships of Mid-Tertiary Strata in the Hackberry Wash-Indian Camp Wash Intramontane Depression, Tortilla Mountains, Pinal County, Arizona

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Author
Dickinson, William R.
Issue Date
2002
Keywords
Arizona Geological Survey Contributed Maps
Tortilla Mountains
Pinal County
Arizona
San Manuel Formation
Cloudburst Formation
Troy Quartzite
Apache Group
Oracle Granite
Hackberry Wash

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Citation
Dickinson, William R., 2002, Structural and Stratigraphic Relationships of Mid-Tertiary Strata in the Hackberry Wash-Indian Camp Wash Intramontane Depression, Tortilla Mountains, Pinal County, Arizona: Arizona Geological Survey Contributed Map CM-02-B, 13 p. and 1 map sheet.
Description
Remapping of the intramontane depression south of Kearny drained by Hackberry Wash and Indian Camp Wash between the Ripsey Hill and Crozier Peak spurs of the Tortilla Mountains was undertaken to reconcile differences in previous mapping, and to resolve questions raised or left open by the previous mapping (Schmidt, 1971, 1989; Krieger, 1974a, 1974b; Cornwall and Krieger, 1975; Banks and Krieger, 1977; Keith, 1983; Dickinson, 1987). The map area includes parts of the Kearny, Hayden, Winkelman, and Crozier Peak 7-1/2 minute quadrangles (in clockwise order from their common join). The improved mapping leads to revision of previous interpretations (Dickinson, 1991, p. 67-76) of the stratigraphic and structural relationships of tilted mid-Tertiary strata. Further paleocurrent study of clast imbrication (Dickinson, 1991 , fig. 39) and more rigorous clast counts in conglomerates are needed, however, to define more closely the mid-Tertiary pattern of sediment dispersal into and within the map area now that overall structural morphology and internal stratigraphy are better understood. Text that accompanies the map includes brief discussion of mid-Tertiary stratigraphy, an overview of key structural features, and a reappraisal of the distribution and origin of rock-avalanche megabreccias (Krieger, 1977) within the map area.
URI
http://hdl.handle.net/10150/629179
Additional Links
https://library.azgs.arizona.edu/
Language
en
Series/Report no.
CM-02-B
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
33.125
South Bounding Coordinate
32.875
West Bounding Coordinate
-111
East Bounding Coordinate
-110.75
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