Arizona Geological Survey Open File Reports


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Published: 1993
Geologic Map of the Phoenix South 30' x 60' Quadrangle, Central Arizona. Scale 1:100,000
Resource Identifiers: OFR-93-18

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Published: 1993
The western Harcuvar Mountains are a fairly rugged~ fairly inaccessible range located north and northwest of Salome in west-central Arizona. The area was mapped in a detailed reconnaissance manner...
Resource Identifiers: OFR-93-08

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Published: 1993
Most of southern and western Arizona is covered with unconsolidated basin sediments that are not mapped in detail. Although these sediments have diverse physical characteristics, origins, and ages...
Resource Identifiers: OFR-93-03

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Published: 1993
The area described in this study includes the western Eagletail Mountains, Yuma county, Arizona and includes much of the Eagletail Mountains Wilderness Area (Figure 1). Bedrock in this area consists...
Resource Identifiers: OFR-93-12

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Published: 1993
Earth fissures have damaged the Central Arizona Project (CAP), and threaten to do so again in the future. Many fissures exist near Reach 1 of the Tucson Aqueduct, located west of the Picacho...
Resource Identifiers: OFR-93-1a

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Published: 1993
Annual Report for 1933
Resource Identifiers: OFR-93-20

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Published: 1993
Face Mountain and Oatman Mountain·are located approximately 25 miles northwest of the town of Gila Bend and about 15 miles north of the town of Sentinel, in southwestern Maricopa County, Arizona....
Resource Identifiers: OFR-93-10

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Published: 1993
These nine maps depict the general ages and distribution of Quaternary geomorphic surfaces and associated alluvium of the northern Avra Valley-Desert Peak (AVDP) area, Pinal and Pima counties,...
Resource Identifiers: OFR-93-13

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Published: 1994
This map summarizes the surficial geology of the Mesa 30' x 60' Quadrangle in central Arizona. Approx. 65 percent of the Mesa Quadrangle, including the rapidly growing eastern and...
Resource Identifiers: OFR-94-24

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Published: 1994
The diversity of alluvial fan and pediment ages and the pristine Sonoran desert vegetation of the Table Top Mountains make this region ideally suited to study relationships between geomorphic...
Resource Identifiers: OFR-94-22

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Published: 1994
Geomorphologic and hydraulic methods were used to evaluate the reported magnitude of an extraordinary flood in west-central Arizona. The peak discharge of the Bronco Creek flood of August 19, 1971...
Resource Identifiers: OFR-94-19

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Published: 1994
This report includes the area between Webb Mountain and Yellow Medicine Butte in the central Gila Bend Mountains, approximately 30 kilometers northwest of Gila Bend, Arizona. The study area...
Resource Identifiers: OFR-94-18

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Published: 1994
Historical aerial photographs, surficial features, and limited subsurface trenching on five fluvially dominated alluvial fans in Arizona demonstrate that channel abandonment occurs along bends and/...
Resource Identifiers: OFR-94-13

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Published: 1994
Arizona Geological Survey (AZGS) staff responded to more than 13,800 requests for information and assistance from persons who wrote, telephoned, or visited our offices to buy publications, use...
Resource Identifiers: OFR-94-26

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Published: 1994
Arizona has suffered relatively modest amounts of damage and destruction resulting from earthquake shaking during its historical period. There is cause to be concerned about earthquake hazards in...
Resource Identifiers: OFR-94-03

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Published: 1994
The Palomas Mountains are located approximately 70 miles northeast of Yuma, Arizona, and about 15 miles north of the town of Dateland in eastern Yuma County (Figure 1). Across a narrow valley to...
Resource Identifiers: OFR-94-09

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Published: 1994
Two active alluvial fans in the tectonically quiescent region of southern Arizona are composed of discontinuous ephemeral stream systems characterized by alternating channelized reaches and...
Resource Identifiers: OFR-94-12

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Published: 1994
Earth fissures are tension cracks that form in response to land subsidence caused by groundwater pumping. Land subsidence is common in Arizona's alluvial basins, where extensive groundwater...
Resource Identifiers: OFR-94-11

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Published: 1990
Virtually all rocks and soils contain uranium, which undergoes radioactive decay into hazardous radon gas. The average uranium concentration of crustal rocks is 2 to 3 parts per million (ppm)....
Resource Identifiers: OFR-90-05

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Published: 1988
Uranium-vanadium deposits have been discovered and mined in the Lukachukai Mountains, a high, rugged northwest spur of the Chuska Mountains in northeastern Arizona. All of the economic deposits...
Resource Identifiers: OFR-88-19

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