Geologic Map of the Sierra Ancha, Central Arizona, v. 1.0

Thumbnail
Name:
DGM-24overview.pdf
Size:
57.75Kb
Format:
PDF
Download
Thumbnail
Name:
DGM-24plate1-map.pdf
Size:
31.44Mb
Format:
PDF
Download
Thumbnail
Name:
DGM-24plate2-xsects.pdf
Size:
143.5Kb
Format:
PDF
Download
Thumbnail
Name:
DGM-24textBW.pdf
Size:
220.0Kb
Format:
PDF
Download
View more files
Author
Skotnicki, S.J.
Issue Date
2002
Keywords
Arizona Geological Survey Digital Geologic Maps
Salt river
Mogollon Rim
Theodore Roosevelt Lake
Sierra Ancha
Arizona
volcanic rock
metamorphosed sedimentary
Mississippian
Permian

Metadata
Show full item record
Citation
Skotnicki, S.J., 2002, Geologic Map of the Sierra Ancha, Central Arizona: Arizona Geological Survey Digital Geologic Map DGM-24, version 1.0, map scale 1:24,000, 31 p., 2 map sheets and metadata.
Publisher
Arizona Geological Survey (Tucson, AZ)
Description
The Sierra Ancha are a series of high plateaus, mesas, and ridges that extend from Theodore Roosevelt Lake in the south to the Mogollon Rim on the north. The southern margin is in some paces a steep escarpment or series of escarpments, in part defined by normal faulting and down-dropping of blocks to the south and by relatively little faulting to the north. Faulds (1986) and Potochnik (1996) suggested that the southern margin of the Sierra Ancha is an ancient paleocanyon through which the ancestral Salt River flowed to the east. Deep, narrow canyons separate the mesas. Some of the deeper canyons reveal older, early Proterozoic (~1.7 Ga) metamorphosed sedimentary and volcanic rock and weakly deformed early and middle Proterozoic granitic rocks. However, most of the Sierra Ancha are composed of very weakly metamorphosed to unmetamorphosed, nearly flat-lying sedimentary rocks of the middle Proterozoic Apache Group.
URI
http://hdl.handle.net/10150/630953
Additional Links
http://repository.azgs.az.gov/uri_gin/azgs/dlio/491
Language
en
Series/Report no.
DGM-24
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
34.25
South Bounding Coordinate
33.5
West Bounding Coordinate
-111.25
East Bounding Coordinate
-110.294
Collections