Geologic Map of Volcanic Rocks Along the East Side of Central Chino Valley, Yavapai County, Arizona

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Author
Stefanov, W.L.
Issue Date
1993
Keywords
Arizona Geological Survey Contributed Maps
Miocene
Oligocene
Arizona
Yavapai County
Butte 5261
Sullivan Buttes
Chino Valley
Transition Zone
olivine basalt

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Citation
Stefanov, W.L., 1993, Geologic Map of Volcanic Rocks Along the East Side of Central Chino Valley, Yavapai County, Arizona: Arizona Geological Survey Contributed Map CM-93-E, map scale 1:12,000, 10 p. and 1 map sheet.
Publisher
Arizona Geological Survey (Tucson, AZ)
Description
The Sullivan Buttes Latite is an intermediate, high-potassium volcanic rock located in the Transition Zone geologic province of central Arizona. The latite outcrops in Chino Valley, along the southwestern border of the Colorado Plateau. Lava flows, volcaniclastic deposits, and intrusive bodies of latite are found in the Chino Valley area (Tyner 1984). Radiometric dates of 21 to 27 Ma have been obtained from the latite, placing them in the Upper Oligocene to Lower Miocene (Nealey and Sheridan 1989). The latite is of interest as it contains a distinctive xenolith suite. The suite includes eclogite, amphibolite, clinopyroxenite, garnet websterite, granulite, and spinel peridotite (Nealey and Sheridan 1989). Xenocrysts of pyroxene, amphibole, plagioclase and quartz are common in the latite (Tyner 1984), and have been interpreted as originating in the lower crust to upper mantle. The xenoliths have been the subject of considerable study, including work by Arculus and Smith (1979); Schulze and Helmstaedt (1979); and Tyner and Smith (1986). The latite was characterized chemically and petrographically in detail by Tyner (1984), who was able to identify six distinct units within the latite on the basis of geochemistry and mineralogy. These units are amphibole, amphibole-biotite, biotite-pyroxene, mafic, basaltic, and upper latite.
URI
http://hdl.handle.net/10150/630622
Additional Links
http://repository.azgs.az.gov/uri_gin/azgs/dlio/1095
Language
en
Series/Report no.
CM-93-E
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
34.8
South Bounding Coordinate
34.76
West Bounding Coordinate
-112.375
East Bounding Coordinate
-112.299
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