Arizona Geological Survey Open File Reports
Earth fissures are one of the geologic hazards that have damaged the facilities of the Central Arizona
Project (CAP). Earth fissures exist along at least two reaches of the Tucson aqueduct, and more...
Resource Identifiers: OFR-91-01
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Geologic Map of the Red Hill Quadrangle, La Paz County, Arizona. Scale 1:24,000.
Resource Identifiers: OFR-92-14
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Geologic Map of the Imperial Reservoir Quadrangle, Yuma County, Arizona, and Imperial County, California, Scale 1:24,000
Resource Identifiers: OFR-92-11
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The Bullard mineral district is one of approximately 15 mineral districts in west-central Arizona and
southeastern California that are related to large-displacement, regionally low-angle normal...
Resource Identifiers: OFR-92-01
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Separate maps show the ranges of values for each parameter. Polygons enclose areas
where parameter values are within a range specified by the DRASTIC system, and a numerical
rating is assigned to...
Resource Identifiers: OFR-92-13
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Geologic maps have traditionally emphasized bedrock rather than unconsolidated
sediments, the latter usually being lumped into the generic category of "Tertiary and/or
Quaternary alluvium...
Resource Identifiers: OFR-92-07
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The area described in this study includes Cemetery Ridge, the Clanton Hills, and the westernmost
Gila Bend Mountains (picacho Hills), La paz and Yuma counties, Arizona. The study area (Fig. 1)...
Resource Identifiers: OFR-92-04
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The area described in this study includes the eastern Eagletail Mountains, Maricopa, La Paz, and
Yuma counties, Arizona. The study area encompasses all of the Eagletail Mountains East Quadrangle
(1...
Resource Identifiers: OFR-92-03
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The principal objective of this study is to evaluate the western piedmont of the
McDowell Mountains to determine which areas may be subject to alluvial-fan flooding.
The McDowell Mountains piedmont...
Resource Identifiers: OFR-92-08
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Fission-track thermochronologic data have the potential to reveal aspects of the timing, rate, and style of crustal extension tectonics. Previous fission-track studies in the footwalls of detachment...
Resource Identifiers: OFR-92-09
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Earth fissures are a geologic hazard that could interrupt
delivery of water to users of the Central Arizona Project (CAP)
Tucson Aqueduct. Since the first earth fissure reported in
Arizona was...
Resource Identifiers: OFR-93-11
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The Painted Rock Mountains are about 15 miles west of the town of Gila Bend in
southwestern Maricopa County, Arizona (Fig. 1). The narrow north-south trending mountain range is
approximately 12...
Resource Identifiers: OFR-93-07
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In 1992 the Arizona Geological Survey (AZGS) organized a repository in which drill core that
the AZGS has accumulated through donations is stored and available for public inspection. The
repository...
Resource Identifiers: OFR-93-02
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This index shows the locations of geologic maps in the Mesa 10 x 2 0 Quadrangle. Three types
of maps are included, as follows: Sheet 1, published maps; Sheet 2, unpublished thesis and dissertation...
Resource Identifiers: OFR-93-19
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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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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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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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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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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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Annual Report for 1933
Resource Identifiers: OFR-93-20
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