Arizona Geological Survey Open File Reports


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Published: 2009
Bedrock Geologic Map of the Northern Part of the Empire Ranch 7.5' Quadrangle, Pima County, Arizona, 1 sheet, map scale 1:24,000.
Resource Identifiers: OFR-09-05

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Published: 2012
Northeastern Arizona is underlain by the southwestern part of the Colorado Plateau, an area of gently dipping to slightly folded Paleozoic and Mesozoic strata that include porous and permeable...
Resource Identifiers: OFR-12-10

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Published: 2008
The Arizona Geological Survey (AZGS) is tasked by statue to undertake comprehensive mapping of earth fissures and deliver earth fissure map data to the State's Internet Map Server (IMS) for...
Resource Identifiers: OFR-08-02

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Published: 2008
The two-day workshop held February 21-22, 2007 included representatives of the Association of American State Geologists (AASG) and the U.S. Geological Survey (USGS). The group recommended that the...
Resource Identifiers: OFR-08-01

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Published: 2008
In 2006, Arizona enacted legislation that directed the Arizona Geological Survey to map earth fissures in the state, required that the presence of earth fissures be disclosed in real estate...
Resource Identifiers: OFR-08-03

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Published: 2008
This field trip guide was created for a Project WET conference held in Tucson, Arizona, June, 2007. This guide discusses the general geology of the Santa Catalina Mountains in Sabino Canyon, and...
Resource Identifiers: OFR-08-05

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Published: 2008
Arizona has experienced a dramatic increase in area burned by wildfires during the drought of the past decade. Over 1.8 million acres of Arizona wildlands burned during the four-year period between...
Resource Identifiers: OFR-08-08

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Published: 2008
Recent analysis of subsurface data indicates a resource containing from 0.7 to 2.5 billion metric tons of potash in the Holbrook basin of east-central Arizona, some of which underlies Petrified...
Resource Identifiers: OFR-08-07

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Published: 2008
On 21 March 2008, a landslide occurred at about mile marker 224 on State Route 87 (SR‐87) (northeast of Iron Dike mountain), in Gila County, causing sufficient damage to require the highway to be...
Resource Identifiers: OFR-08-04

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Published: 2007
The Arizona Geological Survey (AZGS) is tasked by statutes approved in House Bill 2639 of the 2006 legislative session to undertake comprehensive mapping of earth fissures and deliver earth fissure...
Resource Identifiers: OFR-07-01

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Published: 2007
Much of the Plio-Pleistocene sediment in the San Pedro River Valley near Benson (Cochise County, southeastern Arizona) reflects a past depositional environment in which clastic debris was shed from...
Resource Identifiers: OFR-07-02

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Published: 2006
Throughout the southwestern United States, vegetation in what historically was grassland has changed to a mixture of trees and shrubs; exotic grass species and undesirable shrubs have also invaded...
Resource Identifiers: OFR-06-02

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Published: 2006
The Catalina Highway, which extends from the Tucson metropolitan area up the south side of the Santa Catalina Mountains to the top of the range, provides easy access to some very interesting...
Resource Identifiers: OFR-06-01

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Published: 2005
This report is intended to be both a teaching and field guide for a spectacularly exposed sequence of silicic volcanic rocks in the northern Superstition Mountains, south-central Arizona. The...
Resource Identifiers: OFR-05-01

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Published: 2004
The 1:24,000 scale geologic map that is the basis for this report covers part of the central Mazatzal Mountains in the area where the Beeline Highway (State Highway 87) crosses the range (Figure 1)....
Resource Identifiers: OFR-04-03

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Published: 2004
Giant desiccation cracks are common in southwestern U.S. playas and have been reported in several areas of Arizona but they are much more common than previously recognized. These giant cracks are...
Resource Identifiers: OFR-04-01

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Published: 2004
Management of flood hazards on alluvial piedmonts in the southwestern United States is increasingly important because urban development is rapidly expanding into these areas. Flows are very...
Resource Identifiers: OFR-04-02

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Published: 2004
In the evening of July 27, 1988, an extreme flood inundated the channels and floodplains of a relatively pristine, undeveloped alluvial fan associated with Wild Burro Wash, located on a desert...
Resource Identifiers: OFR-04-04

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Published: 2003
Subsurface strata of Pennsylvanian and Permian age in the western Holbrook Basin are correlated with outcrops in Grand Canyon and Sedona area. Subsurface correlations on the four cross sections are...
Resource Identifiers: OFR-03-01

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Published: 2003
Preliminary geologic map of the Meddler Wash 7.5' Quadrangle, Gila County, Arizona - one map sheet, scale 1:24,000.
Resource Identifiers: OFR-03-04

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