Arizona Geological Survey Open File Reports


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Published: 2017
On 6 Aug. 2016, Arizona Senate Bill (SB) 1530 transferred custodianship of the Polly Rosenbaum Building, Phoenix, Arizona, and the mineral and mining artifacts collection of the former Arizona Mining...
Resource Identifiers: OFR-17-02

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Published: 2017
Sometime between Mar. 2014 and Dec. 2014, a mile-long, north-south trending earth fissure opened near the Tator Hills, 13 miles south of Arizona City. The fissure extended an additional ¾ mile to...
Resource Identifiers: OFR-17-01

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Published: 2016
The Inspector General of the U.S. Department of the Interior issued a “Final Report - Inspection of Scientific Integrity Incident at U.S. Geological Survey (USGS) Energy Geochemistry Laboratory,...
Resource Identifiers: OFR-16-02

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Published: 1998
The Hedgpeth Hills 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°37...

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Published: 2016
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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Published: 2015
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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Published: 2015
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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Published: 2015
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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Published: 2015
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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Published: 2015
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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Published: 1999
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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Published: 2015
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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Published: 2011
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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Published: 2015
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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Published: 2015
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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Published: 2015
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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Published: 2009
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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Published: 2013
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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Published: 1993
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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Published: 1992
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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