Geologic map of the Biscuit Flat 7.5' Quadrangle, Maricopa County, Arizona

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Author
Leighty, R.S.
Huckleberry, G.
Issue Date
1998
Keywords
Arizona Geological Survey Open File Reports
Biscuit Flat
Maricopa County
Arizona
quadrangle
map
topography
geomorphology
Geology

Metadata
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Citation
Leighty, R.S. and Huckleberry, G, 1998, Geologic map of the Biscuit Flat 7.5' Quadrangle, Maricopa County, Arizona. Arizona Geological Survey Open File Report, OFR-98-19, 1 map sheet, map scale 1:24,000, 21 p.
Publisher
Arizona Geological Survey (Tucson, AZ)
Description
The Biscuit Flat Quadrangle is located in the northwestern Phoenix metropolitan area, between Interstate 17 (I-17) and the Agua Fria River (Figure 1). The quadrangle is bounded by latitudes 33°45'00"N and 33°52'30"N, and longitudes 112°07'30"W and 112°15'00"W. Unlike areas to the south and southeast, the Biscuit Flat area is not (as yet) urbanized. However, knowledge of the distribution and character of bedrock and surficial deposits may be important to make informed decisions concerning future management of the land and its resources. Geologic mapping of the Biscuit Flat Quadrangle is related to other 1 :24,000 scale mapping projects in and around the Phoenix metropolitan area (Figure 1). Geologic mapping was based on both field observations and interpretation of aerial photographs and soil surveys. Mapping of Quaternary surficial deposits was initially done by Huckleberry, whereas final mapping and interpretation of surficial deposits and bedrock areas was completed by Leighty. A limited amount of unpublished Arizona Geological Survey mapping (by Steve Reynolds and Mike Grubensky for the Phoenix North 1:100,000 scale geologic map) augmented the new mapping of this report. Also, the mapping of Tertiary rocks by Jagiello (1987) is locally similar to that of this report. Aerial photographic coverage of the quadrangle is available from various sources (e.g., U.S.G.S., Bureau of Land Management, etc.), and includes black-and-white (1:40,000 scale, dated 9-6-92), false-color high-altitude (dated 5-17-81), and color (1:24,000 scale, dated 10-25-77) photographs. Soil information was compiled from USDA Maricopa County soil surveys (Hartman, 1977; Camp, 1986). This project was funded by the Environmental Protection Agency through the State Indoor Radon Grant Program, the U.S. Geological Survey via the STATEMAP program, and the Arizona Geological Survey. Geologic map of the Biscuit Flat 7.5' Quadrangle, Maricopa County, Arizona - report and one map sheet, scale 1:24,000.
URI
http://hdl.handle.net/10150/630827
Additional Links
http://repository.azgs.az.gov/uri_gin/azgs/dlio/393
Language
en
Series/Report no.
OFR-98-19
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
33.7968
South Bounding Coordinate
33.7346
West Bounding Coordinate
-112.239
East Bounding Coordinate
-112.107
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