Arizona Geological Survey Open File Reports
The Arizona Geological Survey (AZGS) is one of the most innovative, entrepreneurial, and highly-regarded Surveys in the nation, with a growing portfolio of national and international programs and...
Resource Identifiers: OFR-16-01
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This past year marked a major milestone for AZGS. The 4-year, $22 million
National Geothermal Data System (NGDS) project formally ended on December 1,
2014, and with it a special period in AZGS...
Resource Identifiers: OFR-15-07
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Approximately 60,000 years ago SP Crater, situated in
the north- central part of the San Francisco volcanic field
between Flagstaff and Grand Canyon, Arizona, erupted and
flowed into a structural...
Resource Identifiers: OFR-15-11
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The northern Plomosa Mountains are a small metamorphic core complex in La Paz County, western
Arizona. The dominant structure of the range is the Plomosa detachment fault, a low-angle normal fault...
Resource Identifiers: OFR-10-15
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To most geologists, geologic maps are the single most useful type of information for understanding the geology of the land surface. As a result, geologic mapping has a long history, with over two...
Resource Identifiers: OFR-15-01 v1.2
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Hookers Hot Springs is located approximately 70 km (40
miles) east of Tucson, Arizona, and is within the Hookers
Hot Springs 7.5’ Quadrangle in the southern Galiuro
Mountains. The hot spring...
Resource Identifiers: OFR-15-06
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Index of Samples of Wells Drilled for Oil and Gas in Arizona (Includes Wells Drilled Through December 1998).
Resource Identifiers: OFR-99-14
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The Department of Energy (DOE), including its National Energy Technology Laboratory and West
Coast Regional Carbon Sequestration Partnership (WESTCARB), have established national programs to...
Resource Identifiers: OFR-15-09 v.1
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The Grand Canyon region contains over 1300 known or suspected breccia pipes, which are vertical, pipe-shaped bodies of highly fractured rock that collapsed into voids created by dissolution of...
Resource Identifiers: OFR-11-04
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Nearly pure quartz sands have become increasingly important for oil and gas production. Although used for hydraulic fracturing (“fracking”) since at least the 1950s, the advent of directional...
Resource Identifiers: OFR-15-04
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Extreme Late Oligocene to middle Miocene tectonic extension in central western Arizona was associated with exhumation of deep crustal rocks to form metamorphic core complexes, felsic to mafic...
Resource Identifiers: OFR-15-05 V 1.0
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Milky quartz veins are visible throughout all parts of Scottsdale's McDowell Sonoran Preserve (the Preserve) (see locator map below) and at many scales. Prospectors searching for heavy metal and...
Resource Identifiers: OFR-15-03
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This open-file report describes the carbon-sequestration potential at the site of the 1 Alpine-Federal geothermal test drill hole, which is located south of Springerville in central eastern Arizona...
Resource Identifiers: OFR-09-02
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The Yuma basin is located in the southwestern Basin and Range Province of Arizona adjacent to the San Andreas Transform boundary and the Gulf of California. The Colorado River marks the western...
Resource Identifiers: OFR-13-04
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The area described in this study includes the central Gila Bend mountains, Maricopa county, Arizona.
The study area encompasses the southern one-half of the Cortez Peak Quadrangle (1:24,000) and the...
Resource Identifiers: OFR-93-05
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The area described in this study includes the western Gila Bend and the southern Eagletail mountains,
Maricopa and La paz counties, Arizona. The study area encompasses all of the Columbus Peak...
Resource Identifiers: OFR-92-05
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The Oracle 7.5' Quadrangle is located approximately 40 km north-northeast of downtown Tucson, and is on
the northwest flank of Santa Catalina Mountains (Figure 1). The quadrangle encompasses...
Resource Identifiers: OFR-00-05
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The area rnapped lies north and west of Ray and comprises an
area of about 14 by 5 miles. Mapping scale is 1 inch = 12,000 feet and the base is
enlarged USGS topographic maps. The 74 page...
Resource Identifiers: OFR-83-14
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Director Lee Allison's Report ~
In Fiscal Year 2014, the Arizona Geological Survey (AZGS) maintained
its core functions in addressing natural hazards and natural resources
in Arizona, and...
Resource Identifiers: OFR-14-07
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The forms in this open-file report may be reproduced for filing with the U.S. Bureau of Land
Management and the County Recorders offices. While these are not officially designated forms, they
meet...
Resource Identifiers: OFR-14-05
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