Arizona Geological Survey Open File Reports


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Published: 2003
The results of 40 Ar/39 Ar analyses of 15 samples of rhyolitic ash-flow tuffs and one sample of a dacitic dome from Mid-Tertiary and Cretaceous volcanic successions in the Tucson area are presented...
Resource Identifiers: OFR-03-02

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Published: 2003
Sixteen rock samples were collected from several mountain ranges in southern and central Arizona to determine their cooling history as revealed by 40 ArP9 Ar thermochronology. This was done by...
Resource Identifiers: OFR-03-03

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Published: 2003
Some of the richest helium-bearing gas in the world was produced from fields completed specifically for helium in northeastern Arizona in the 1960s and 1970s. All production came from fields in...
Resource Identifiers: OFR-03-05

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Published: 2003
During the past several years accusations have been made that sand and gravel operations along the Agua Fria River near Sun City are exposing nearby residents to asbestos. The Arizona Geological...
Resource Identifiers: OFR-03-06

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Published: 2003
Geochronologic analyses of igneous rocks were done over the past several years as part of the joint State-Federal STATEMAP program. These analyses were done to determine the age of rocks in areas...
Resource Identifiers: OFR-03-08

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Published: 2003
Giant desiccation cracks have been discovered in two areas near the settlement of Wintersburg (Figure 1) on detailed aerial photos obtained from Maricopa County Flood Control District. One area is...
Resource Identifiers: OFR-03-07

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Published: 2003
Granitic rocks are classified by their relative proportions of quartz, plagioclase feldspar, and potassium feldspar. Geologic mapping in the Mesa 19 x 29 Quadrangle by the Arizona Geological Survey...
Resource Identifiers: OFR-03-09

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Published: 2002
Uranium-238 and other radioactive isotopes (radioisotopes) are present in small concentrations in all geologic materials. In a tiny fraction of these materials, such as uranium ore, radioisotope...
Resource Identifiers: OFR-02-13

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Published: 2002
This report summarizes the surficial geology and geomorphology of the Tinajas Altas area on the Barry M. Goldwater Air Force Range in southwestern Arizona (Figure 1). The purpose of these...
Resource Identifiers: OFR-02-02

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Published: 2002
This report summarizes the surficial geology and geomorphology of the central Sauceda Valley, on the East Tactical Range of the Barry M. Goldwater Air Force Range (Figure 1). The purpose of these...
Resource Identifiers: OFR-02-03

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Published: 2002
Karst is the name applied to topography that develops on land underlain by soluble rocks such as limestone, gypsum, and salt. Karst terrain is characterized by solution features such as caves,...
Resource Identifiers: OFR-02-07

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Published: 2002
Landscape change detection using Landsat ETM+ sensor data and image processing methods based on band orthogonalization are used for initial mapping of flood inundation along JackrabbitWash, in...
Resource Identifiers: OFR-02-06

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Published: 2002
Preliminary geologic map of the Oak Creek Ranch 7.5' Quadrangle, Gila County, Arizona. Map scale 1:24,000.
Resource Identifiers: OFR-02-08

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Published: 2002
Preliminary geologic map of the Young 7.5' Quadrangle, Gila County, Arizona - one map sheet, map scale 1:24,000.
Resource Identifiers: OFR-02-11

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Published: 2002
Preliminary geologic map of the Salt River Peak 7.5' Quadrangle, Gila County, Arizona - one map sheet, map scale 1:24,000.
Resource Identifiers: OFR-02-12

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Published: 2002
Preliminary geologic map of the Parallel Canyon 7.5' Quadrangle, Gila County, Arizona. Map scale 1:24,000
Resource Identifiers: OFR-02-10

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Published: 2001
Mission: To inform and advise the public about the geologic character of Arizona in order to foster understanding and prudent development of the State's land, water, mineral, and energy...
Resource Identifiers: Annual Report 2001

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Published: 2001
This report summarizes geoarchaeological investigations and surficial geologic mapping conducted on part of the Barry M. Goldwater Air Force Range (BMGR) in southwestern Arizona in 1996. These...
Resource Identifiers: OFR-01-01

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Published: 2001
This report summarizes geomorphologic investigations and surficial geologic mapping conducted on part of the Barry M. Goldwater Air Force Range (BMGR) in southwestern Arizona in 1997 and 1998....
Resource Identifiers: OFR-01-02

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Published: 2001
In November 1997, a stratigraphic section of the Awatubi and Walcott Members of the Late Proterozoic Kwagunt Formation, Chuar Group, located in the Sixtymile Canyon area, of the eastern Grand...
Resource Identifiers: OFR-02-01

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