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Atomic Energy Commission Reports
189
GJBX
119
United States Geological Survey Reports
102
United States Department of Energy Grand Junction Office Reports
59
United States Bureau of Mines Reports
55
Trace elements investigations report
28
RME
22
Open file report (United States. Bureau of Mines)
21
U.S. Geological Survey bulletin
16
NURE Aerial Gamma-Ray and Magnetic Reconnaissance Survey, [California]-Arizona Area
13
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Geologic Studies in the Basin and Range-Colorado Plateau Transition in Southeastern Nevada, Southwestern Utah, and Northwestern Arizona, 1995
The following report is the second compilation of reports describing the geology of the Basin and Range to Colorado Plateau Transition (BARCO) area.
Date:
1997
Creator:
Maldonado, Florian & Nealey, L. David
Object Type:
Report
System:
The UNT Digital Library
The Bisbee Group of the Tombstone Hills, Southeastern Arizona: Stratigraphy, Structure, Metamorphism, and Mineralization
From introduction: The purpose of this study is to establish a stratigraphic framework of the Bisbee Group in the Tombstone Hills, and to use this stratigraphy to unravel the complex history of folding, faulting, intrusion, and mineralization.
Date:
1996
Creator:
Force, Eric R.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resource Potential and Geology of Coronado National Forest, Southeastern Arizona and Southwestern New Mexico
The following report is a mineral resource assessment of Coronado National Forest of southeastern Arizona and southwestern New Mexico, formed by geologic, geochemical, and geophysical data.
Date:
1996
Creator:
Du Bray, Edward A.
Object Type:
Report
System:
The UNT Digital Library
Area Adjacent to the Turkey Creek Caldera, Cochise County, Arizona: Analytic Data and Geologic Sample Catalog
From introduction: This report supplements similar reports prepared for the four 7.5-minute quadrangles that cover the Turkey Creek caldera and geologic map of the caldera.
Date:
1995
Creator:
Du Bray, Edward A. & Pallister, John S.
Object Type:
Report
System:
The UNT Digital Library
Carbon Dioxide in Mississippian Rocks of the Paradox Basin and Adjacent Areas, Colorado, Utah, New Mexico, and Arizona
From abstract: This report is about six gas samples that were obtained from the Mississippian Leadville Limestone in the McElmo field, Colorado, and the Lisbon field, Utah. These samples were recorded to contain a high reading of carbon dioxide and the report investigates these results.
Date:
1995
Creator:
Cappa, James A. & Rice, Dudley D.
Object Type:
Report
System:
The UNT Digital Library
Petrographic and Geochemical Analyses of Leach Samples from Artillery Peak, Mohave County, Arizona
Abstract: The first step in determining whether Mn can be recovered by in situ leaching is to develop and test a selective lixiviant. Two column leach tests and one core leach test were conducted by the U.S. Bureau of Mines on Mn oxide ore using aqueous sulfur dioxide (SO2) as the lixiviant. The column tests showed that aqueous SO2 could selectively dissolve available Mn oxides from calcite-rich ore in a heap leach system. However, the core test showed that calcite gangue side reactions can have pronounced negative effects on the likelihood of successful in situ leaching of a calcite-rich ore with aqueous SO2. Petrographic and geochemical analyses showed that both Mn (IV, II) oxides and calcite were dissolved. The abundance of dissolved Ca caused precipitation of gypsum. Acid consumption by calcite dissolution caused a rise in pH that caused the S02/S species to shift to SO32- (sulfite), which hindered reductive dissolution of Mn oxide. Gypsum precipitation did not affect complete leaching of the rock fragments in the column tests; however, it plugged the natural permeability in the core. Manganese recoveries were high for the column tests and low for the core test.
Date:
1995
Creator:
Brink, Susan E.; Blake, Rolland & Marozas, Dianne
Object Type:
Report
System:
The UNT Digital Library
Structural Analysis of a Mechanized LHD Trench Undercut Caving System
Abstract: This U. S. Bureau of Mines (USBM) report presents results of stress analyses and field observations to investigate the effects of elevated trench drifts on the structural stability of rock mass zones surrounding a production draw drift in a mine utilizing a mechanized load-haul-dump (LHD) trench undercut panel caving system. A two-dimensional boundary-element mine stress model was developed to predict the locations and extent of damaged rock mass zones surrounding draw drifts where adjacent, parallel trench drifts are either elevated or not elevated above the LHD production draw drift level. A Mohr-Coulomb shear-failure criterion was obtained directly from in situ borehole shear test data. Hoek-Brown shear-failure parameter values were computed from borehole-shear and triaxial test data. A procedure is described to estimate these parameters when a rock mass rating (RMR) value and triaxial data on intact samples exist, and no borehole shear test data exist. Results indicate that trench drifts, elevated to the level equal to the height of the LHD production draw drift, would not minimize material damage nor significantly enhance the stability of rib and crown pillar zones surrounding production draw drifts in the mechanized LHD trench undercut caving panel investigated at this mine.
Date:
1995
Creator:
Jude, Charles V.
Object Type:
Report
System:
The UNT Digital Library
Stanford Canyon Quadrangle, Cochise County, Arizona: Analytic Data and Geologic Sample Catalog
From abstract: Information in this report supplements the geologic map of the Stanford Canyon quadrangle that provides chemical data, thin sections, and hand specimens for each of the samples collected in the quadrangle.
Date:
1993
Creator:
Du Bray, Edward A. & Pallister, John S.
Object Type:
Report
System:
The UNT Digital Library
Stratigraphy, Structure, and Paleogeography of Pennsylvanian and Permian Rocks, San Juan Basin and Adjacent Areas, Utah, Colorado, Arizona, and New Mexico
From introduction: The investigation described herein is a part of the USGS Evolution of Sedimentary Basins Program. This report concerns the Pennsylvanian and Permian stratigraphic framework, structural development, and paleogeography of the San Juan Basin.
Date:
1993
Creator:
Huffman, A. Curtis, Jr. & Condon, Steven M.
Object Type:
Report
System:
The UNT Digital Library
Tertiary Stratigraphy of Highly Extended Terranes, California, Arizona, and Nevada
Proceedings of a workshop held in February 1990 called "Tertiary Stratigraphy of Highly Extended Terranes, Southern Basin and Range" at the Desert Research Center of the California State University System, Soda Springs, near Baker, California. This volume is a collection of stratigraphic data and interpretation.
Date:
1993
Creator:
Sherrod, David R. & Nielson, Jane E.
Object Type:
Report
System:
The UNT Digital Library
Fife Peak Quadrangle, Cochise County, Arizona: Analytic Data and Geologic Sample Catalog
From abstract: The information presented in this report supplements the geologic map of the Fife Peak quadrangle and supports ongoing investigations of the evolution of the Turkey Creek caldera.
Date:
1992
Creator:
Du Bray, E. A.; Yager, Douglas B. & Pallister, John S.
Object Type:
Report
System:
The UNT Digital Library
Rustler Park Quadrangle, Cochise County, Arizona: Analytic Data and Geologic Sample Catalog
From abstract: Information in this report supplements the geologic map of the Rustler Park quadrangle and supports ongoing investigations of the Turkey Creek caldera.
Date:
1992
Creator:
Du Bray, E. A.; Yager, Douglas B. & Pallister, John S.
Object Type:
Report
System:
The UNT Digital Library
Structural Context of Mid-Tertiary Mineralization in the Mammoth and San Manuel Districts, Southeastern Arizona
From introduction: This study examines mid-Tertiary mineralization of the area in the context of both detachment and basin-range faulting.
Date:
1992
Creator:
Force, Eric R. & Cox, Leslie J.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Black Mountains North and Burns Spring Wilderness Study Areas, Mohave County, Arizona
From abstract: At the request of the U.S. Bureau of Land Management, approximately 19,300 acres of the Black Mountains North Wilderness Study Area (AZ-020-009) and 23,310 acres of the Burns Spring Wilderness Study Area (AZ-020-010) were evaluated for mineral resources and mineral resource potential. In this report, the area studied is referred to, collectively or individually, as the 'wilderness study area' or simply 'the study area'; any reference to the Black Mountains North or Burns Spring Wilderness Study Areas refers only to that part of the wilderness study area for which a mineral survey was requested by the U.S. Bureau of Land Management. The study area is located in western Arizona, about 30 mi northwest of Kingman. There are no identified resources in the study area.
Date:
1990
Creator:
Conrad, James E.; Hill, Randall H.; Jachens, Robert C. & Neubert, John T.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Wabayuma Peak Wilderness Study Area, Mohave County, Arizona
From abstract: The Wabayuma Peak Wilderness Study Area (AZ-020-037/043), for which a mineral survey was requested by the U.S. Bureau of Land Management, encompasses 40,118 acres in northwestern Arizona. Fieldwork was carried out in 1986-88 by the U.S. Bureau of Mines and the U.S. Geological Survey to appraise the identified (known) resources and assess the mineral resource potential (undiscovered) of the wilderness study area. Within the Wabayuma Peak Wilderness Study Area are 14 private parcels of land totaling 1,315 acres. The Wabayuma Peak Wilderness Study Area, including the 14 private parcels of land, is herein referred to as the "wilderness study area" or the "study area." The Boriana, Antler, and Copper World mines lie near the east boundary of the study area. The Boriana mine was a major tungsten-producing mine of the United States during World War II. The Antler and Copper World mines produced relatively small amounts of copper and zinc prior to 1970.
Date:
1990
Creator:
Conway, Clay M.; Hassemer, Jerry R.; Knepper, Daniel H., Jr.; Pitkin, James A.; Jachens, Robert C. & Chatman, Mark L.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Warm Springs Wilderness Study Area, Mohave County, Arizona
From abstract: At the request of the U.S. Bureau of Land Management, approximately 113,500 acres of the Warm Springs Wilderness Study Area (AZ-020-028/029) were evaluated for mineral resources and mineral resource potential. In this report, the area studied is referred to as the "wilderness study area" or "study area"; any reference to the Warm Springs Wilderness Study Area refers only to that part of the wilderness study area for which a mineral survey was requested. This study area is located in west-central Arizona. The U.S. Geological Survey and the U.S. Bureau of Mines conducted geological, geochemical, and geophysical surveys to appraise the identified mineral resources (known) and assess the mineral resource potential (undiscovered) of the study area. Fieldwork for this report was carried out largely in 1986-1989.
Date:
1990
Creator:
Gray, Floyd; Jachens, Robert C.; Miller, Robert J.; Turner, Robert L.; Knepper, Daniel H., Jr.; Pitkin, James A. et al.
Object Type:
Report
System:
The UNT Digital Library
Bureau of Mines Development of Titanium Production Technology
From Abstract: "The development and status of technology for producing titanium from U.S. resource materials are summarized in this Bureau of Mines report."
Date:
1987
Creator:
Henry, J. L.; Stephens, W. W.; Blue, D. D. & Maysilles, J. H.
Object Type:
Report
System:
The UNT Digital Library
Mineral Investigation of the Arrastra Mountain Wilderness Study Area, La Paz, Mohave, and Yavapai Counties, and Peoples Canyon Wilderness Study Area, Yavapai County, Arizona
This report presents the results of a mineral survey of the Arrastra Mountain (AZ 020-059) and Peoples Canyon (AZ 020-068) Wilderness Study Areas, La Paz, Mohove, and Yavapai Counties, Arizona.
Date:
1985
Creator:
Lane, Michael E.
Object Type:
Report
System:
The UNT Digital Library
Mineral Investigation of the Sierra Ancha Wilderness and Salome Study Area, Gila County, Arizona
This report presents the results of the mineral survey of the Sierra Ancha Wilderness and Salome Study Area conducted by the U.S. Bureau of Mines. A combined summary report of work done by the U.S. Geological Survey and U.S. Bureau of Mines has been previously published.
Date:
1985
Creator:
Light, Thomas D.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of a Part of the Dos Cabezas Mountains Wilderness Study Area (Az-040-065), Cochise County, Arizona
From summary: In January-April 1984, the Bureau of Mines conducted a mineral survey of the Lower Burro Creek Wilderness Study Area as required by Federal Land Policy and Management Act (Public Law 94-579, October 21, 1976). The Lower Burro Creek Wilderness Study Area comprises 21,700 acres in southeastern Mohave and Yavapai Counties, Arizona. Mines and prospects are located on deposits and (or) occurrences of gold, bentonite, magnesite, and agate in the eastern and southeastern part of the study area.
Date:
1985
Creator:
Zelten, Jeanne E.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Big Horn Mountains Wilderness Study Area (Az-020-099), Maricopa County, Arizona
From preface: This report presents the results of a mineral survey of the Big Horn Mountains Wilderness Study Area (AZ-020-099), Maricopa County, Arizona.
Date:
1985
Creator:
Schreiner, Russell A.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Harquahala Mountains Study Area (Az-020-095), La Paz and Maricopa Counties, Arizona
From summary: The Harquahala Mountains BLM Wilderness Study Area is in the Basin and Range physiographic province of west-central Arizona. The present study covers 24,735 acres of the 72,675 acre wilderness study area, preliminary recommended as suitable for inclusion in the National Wilderness Preservation System in La Paz and Maricopa Counties, Arizona. During the winter of 1983-84, under authority of the Federal Land Policy and Management Act (Public Law 94-579), the Bureau mapped and sampled mines and prospects in and near the WSA to determine the mineral resources present.
Date:
1985
Creator:
Thompson, John R.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Lower Burro Creek Wilderness Study Area (Az-020-060), Mohave and Yavapai Counties, Arizona
From summary: In January-April 1984, the Bureau of Mines conducted a mineral survey of the Lower Burro Creek Wilderness Study Area as required by Federal Land Policy and Management Act (Public Law 94-579, October 21, 1976). The Lower Burro Creek Wilderness Study Area comprises 21,700 acres in southeastern Mohave and Yavapai Counties, Arizona.
Date:
1985
Creator:
Schreiner, Russell A.
Object Type:
Report
System:
The UNT Digital Library
Mineral Investigation of the Starvation Point Wilderness Study Area, Mohave County, Arizona and Washington County, Utah
This report presents the results of a mineral survey of the Starvation Point Wilderness Study Area (AZ-010-005/UT-040-057), Mohave County, Arizona and Washington County, Utah.
Date:
1984
Creator:
Harris, Albert D. & Ryan, George S.
Object Type:
Report
System:
The UNT Digital Library