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Mafic and Ultramafic Xenoliths from Volcanic Rocks of the Western United States

Description: From abstract: Mafic and ultramafic xenoliths in the Western United States are present in volcanic rocks ranging from lamprophyric to dacitic in composition and are found in every major tectonic province from the Coast ranges from California to the Great Plains. Xenoliths from 68 localities are described here, but new localities are being discovered, and much remain to be learned about their distribution with respect to the tectonic and geophysical framework of the Western United States.
Date: 1988
Creator: Wilshire, Howard Gordon; Meyer, C. E.; Nakata, John K.; Calk, L. C.; Shervais, John W.; Nielson, J. E. et al.
Location: None
Partner: UNT Libraries Government Documents Department
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Mineral Resources of the Mormon Mountains Wilderness Study Area, Lincoln County, Nevada

Description: From introduction: This report presents an evaluation of the mineral endowment (identified resources (known) and mineral resource potential (undiscovered)) of the study area and is the product of several separate studies by the USBM and the USGS.
Date: 1988
Creator: Shawe, Daniel R.; Blank, H. Richard, Jr.; Wernicke, Brian P.; Axen, Gary J.; Barton, Harlan N.; Day, Gordon W. et al.
Partner: UNT Libraries Government Documents Department
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Mineral Resources of the Clover Mountains Wilderness Study Area, Lincoln County, Nevada

Description: From abstract: At the request of the U.S. Bureau of Land Management, approximately 84,165 acres of the Clover Mountains Wilderness Study Area (NV-050-139) was evaluated for mineral resources (known) and mineral resource potential (undiscovered). In this report, the area studied is referred to as "the wilderness study area" or simply "the study area;" any reference to the Clover Mountains Wilderness Study Area refers only to that part of the wilderness study area for which a mineral survey was r… more
Date: 1988
Creator: Moring, Barry; Blank, H. Richard, Jr.; Hoffman, James D. & McHugh, Edward L.
Partner: UNT Libraries Government Documents Department
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Mineral Resources of the Behind the Rocks Wilderness Study Area, Grand and San Juan Counties, Utah

Description: Abstract: The Behind the Rocks Wilderness Study Area (UT-060-140A) consists of 12,635 acres in Grand and San Juan Counties, Utah. The study area has inferred subeconomic resources of potash and halite in the subsurface, and sandstone on the surface. The study area has high potential for undiscovered resources of oil and gas, low potential for undiscovered uranium, copper, vanadium, gold, silver, other metals, and geothermal energy, and unknown potential for the rare-earth mineral, braitschite. … more
Date: 1988
Creator: Patterson, Charles G.; Toth, Margo I. & Case, James E.
Partner: UNT Libraries Government Documents Department
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Mineral Resources of the Ferris Mountains Wilderness Study Area, Carbon County, Wyoming

Description: From abstract: During the present study, all working were examined and representative rock and mineral samples from them were analyzed. Reconnaissance geochemical sampling of rocks, minerals, and stream sediments was conducted for the entire area.
Date: 1988
Creator: Reynolds, Mitchell W. & Neubert, John T.
Partner: UNT Libraries Government Documents Department
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Mineral Resources of the Sweetwater Canyon Wilderness Study Area, Fremont County, Wyoming

Description: From abstract: This report includes field investigations to evaluate the mineral resource potential of the Sweetwater Canyon Wilderness Study Area that were conducted during the summer of 1986.
Date: 1988
Creator: Day, Warren C.; Hill, Randall H.; Kulik, Dolores M.; Scott, David C. & Hausel, W. Dan
Partner: UNT Libraries Government Documents Department
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Quaternary Movement Along the La Jencia Fault, Central New Mexico

Description: From abstract: The La Jencia fault is a recently reactivated late Cenozoic basin margin structure of major proportions that forms the western margin of the Rio Grande rift, which borders the eastern sides of the northern Magdalena Mountains and the southern Bear Mountains in central New Mexico. Stratigraphic throw on the fault has not been determined, but Precambrian rocks of the Magdalena Mountains are uplifted a minimum of 800 m (meters) above the adjacent basin floor, below which lie a thick… more
Date: 1988
Creator: Machette, Michael N.
Partner: UNT Libraries Government Documents Department
open access

Mineral Resources of the Whipple Mountains and Whipple Mountains Addition Wilderness Study Areas, San Bernardino County, California

Description: From abstract: At the request of the U.S. Bureau of Land Management, approximately 85,100 acres of the Whipple Mountains Wilderness Study Area (CDCA-312) and 1,380 acres of the Whipple Mountains Addition Wilderness Study Area (AZ-050-010) were evaluated for identified mineral resources (known) and mineral resource potential (undiscovered). In this report, the Whipple Mountains and Whipple Mountains Addition Wilderness Study Areas are referred to as simply "the study area."
Date: 1988
Creator: Marsh, Sherman P.; Raines, Gary L.; Diggles, Michael F.; Howard, Keith A.; Simpson, Robert W.; Hoover, Donald B. et al.
Partner: UNT Libraries Government Documents Department
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Mineral Resources of the Turtle Mountains Wilderness Study Area, San Bernardino County, California

Description: From abstract: At the request of the U.S. Bureau of Land Management, approximately 105,200 acres of the Turtle Mountains Wilderness Study Area (CDCA-307) were evaluated for mineral resources (known) and resource potential (undiscovered). In this report, the area studied is referred to as "the wilderness study area" or simply "the study area"; any reference to the Turtle Mountain Wilderness Study Area refers only to that part of the wilderness study area for which a mineral survey was requested … more
Date: 1988
Creator: Howard, Keith A.; Nielson, Jane E.; Simpson, Robert W.; Hazlett, Richard W.; Alminas, Henry V.; Nakata, John K. et al.
Partner: UNT Libraries Government Documents Department
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Studies of the Early Mesozoic Basins of the Eastern United States

Description: The following document is a collection of reports on the studies of the early Mesozoic basins of the Eastern United States. The reports are divided into four sections: reports that study the sedimentary rocks of the basins, studies of related to Jurassic igneous rocks, studies related to the geophysics, structure, and tectonics of the basins, and studies related to the mineral resources.
Date: 1988
Creator: Froelich, A. J. & Robinson, Gilpin R., Jr.
Partner: UNT Libraries Government Documents Department
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Bitumen-Bearing Deposits of the United States

Description: The following report summarizes the locations, resources, and petrophysical data of known bitumen-bearing deposits located primarily in Alabama, California, Kentucky, Texas, and Utah.
Date: 1988
Creator: Crysdale, Bonnie L. & Schenk, Christopher J.
Partner: UNT Libraries Government Documents Department
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