Arizona Geological Survey Contributed Reports
ABSTRACT. Virtually all the numerous porphyry copper deposits of the southern Arizona region are associated with epizonal granitoid plutons of a single narrow age range: 75-55 Ma - latest Cretaceous...
Resource Identifiers: CR-22-D
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This report accompanies a digital geologic map of the Picacho, Picacho SW, Picacho NW, and Hidden Valley 7.5-minute quadrangles — the four quadrants of the Picacho 15-minute quadrangle. The map area...
Resource Identifiers: CR-22-C
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This geologic map and report document peridotite—harzburgite, olivine orthopyroxenite, and serpentinite after dunite—entrained in a latest Cretaceous (“Laramide”) low-angle subduction channel, the...
Resource Identifiers: CR-22-A
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Geological studies of the Early Permian Kaibab Formation in northwestern Arizona have been conducted for over 150 years, but details of its stratigraphy and environmental setting have not been...
Resource Identifiers: CR-21-E
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Copper mining in the Globe-Miami Mining Region of Arizona's Copper Triangle spans more than 150 years. In the Arizona Territory, the Globe-Miami Mining Region evolved from a small, insignificant...
Resource Identifiers: CR-22-B
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A comprehensive illustrated stratigraphy of Grand Canyon. Includes photographs of select strata, a brief description of rock units - including depositional environment of sedimentary rocks - and...
Resource Identifiers: CR-21-D
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San Francisco Mountain and eight satellite silicic volcanoes at its base constitute the San Francisco Mountain volcanic system. The central composite volcano is the largest edifice in the San...
Resource Identifiers: CR-21-C
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ABSTRACT. The Miocene Lost Cabin beds of Cottonwood Valley, Arizona, represent a north-northeasterly fine-grained axial valley basin deposit fed by sediments from the Newberry and Black Mountains to...
Resource Identifiers: CR-21-B
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In flowing from its origins in the mountains of west-central New Mexico down to the
broad sedimentary basins of central Arizona's Salt River Valley, the Gila River and its
enclosing fluvial...
Resource Identifiers: CR-08-A
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The Christmas copper deposit is located in southern-most Gila County, Arizona approximately 70 miles north of Tucson and 100 miles southeast of Phoenix (Figure 1). Situated in the Dripping Spring...
Resource Identifiers: CR-21-A
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The Mogollon Rim is one of the longest escarpments on Earth;
extending for over 200 miles (322 km) across central Arizona and reaching a height of 2000 ft.
(610 m.), this imposing line of cliffs...
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From the introduction, "During the project, 67 plutons were identified and 64 were sampled. The 3 not sampled are large, complex Precambrian batholiths not designated for sampling in the...
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From 1910 to 1996, the US Bureau of Mines (USBM) published nearly 12,000 articles in three publication series, Bulletin, Circular, and Research Investigations. This excel spreadsheet compiles all...
Resource Identifiers: CR-20-D
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ABSTRACT. The Santa Catalina Mountains in southeastern Arizona include extensive mylonitic fabrics developed within
granitic and gneissic rocks that make up most of the range. These fabrics are...
Resource Identifiers: CR-20-C
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The story of the Helvetia-Rosemont Mining District is one of meeting challenges to provide a better life through persistence and hard work. The pre-World War II history of the district highlights...
Resource Identifiers: CR-20-B
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This contributed report represents a re-release of a major study of the uranium favorability of Cordilleran metamorphic core complexes. It was funded by the US Department of Energy (DOE) through a...
Resource Identifiers: CR-20-A
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A compilation of ~ 50 research papers on the geologic setting of the Colorado River region in California, Arizona, and Nevada. Dedicated to Warren B. Hamilton and R. Ernest Anderson for their...
Resource Identifiers: Anderson-Hamilton Volume
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brief reconnaissance (5-8 November 2008) of the Big Sandy Formation near Wikieup (on US Highway 93 in Mohave County, Arizona) was undertaken to reconcile a reported dominance of lacustrine beds (...
Resource Identifiers: CR-08-D
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The Arizona Geological Survey is a publicly funded state agency that saved Arizonans $30 million over the last 12 months in cost avoidance. AZGS’ impact can be categorized under three pillars; it...
Resource Identifiers: CR-19-A
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George R. Simpson was issued Navajo Tribal Mining Permit No. 48 in the northwestern Carrizo Mountains, Apache County, Arizona on August 6, 1954. This permit was one mile square
(Figure 1). On this...
Resource Identifiers: CR-18-E
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