Edward A du Bray (Former Employee)
Science and Products
Filter Total Items: 16
Filter Total Items: 100
Compilation of Stratigraphic Thicknesses for Caldera-Related Tertiary Volcanic Rocks, East-Central Nevada and West-Central Utah Compilation of Stratigraphic Thicknesses for Caldera-Related Tertiary Volcanic Rocks, East-Central Nevada and West-Central Utah
The U.S. Geological Survey (USGS), the Desert Research Institute (DRI), and a designee from the State of Utah are currently conducting a water-resources study of aquifers in White Pine County, Nevada, and adjacent areas in Nevada and Utah, in response to concerns about water availability and limited geohydrologic information relevant to ground-water flow in the region. Production of...
Authors
D. S. Sweetkind, E. A. Du Bray
Modal Composition and Age of Intrusions in North-Central and Northeast Nevada Modal Composition and Age of Intrusions in North-Central and Northeast Nevada
Introduction Data presented in this report characterize igneous intrusions of north-central and northeast Nevada and were compiled as part of the Metallogeny of the Great Basin project conducted by the U.S. Geological Survey (USGS) between 2001 and 2007. The compilation pertains to the area bounded by lats 38.5 and 42 N., long 118.5 W., and the Nevada-Utah border (fig. 1). The area...
Authors
Edward A. du Bray, A. Elizabeth Jones Crafford
Geochemical Database for Intrusive Rocks of North-Central and Northeast Nevada Geochemical Database for Intrusive Rocks of North-Central and Northeast Nevada
North-central and northeast Nevada contains numerous large plutons and smaller stocks but also contains many small, shallowly emplaced intrusive bodies, including dikes, sills, and intrusive lava dome complexes. Decades of geologic investigations in the study area demonstrate that many ore deposits, representing diverse ore deposit types, are spatially, and probably temporally and...
Authors
Edward A. du Bray, Michael W. Ressel, Calvin G. Barnes
Petrology of the Crazy Mountains dike swarm and geochronology of associated sills, south-central Montana Petrology of the Crazy Mountains dike swarm and geochronology of associated sills, south-central Montana
No abstract available.
Authors
Edward A. du Bray, Stephen S. Harlan, Anna B. Wilson
Geochemical database for volcanic rocks of the western Cascades, Washington, Oregon, and California Geochemical database for volcanic rocks of the western Cascades, Washington, Oregon, and California
No abstract available.
Authors
Edward A. du Bray, David A. John, David R. Sherrod, Russell C. Evarts, Richard M. Conrey, Jaroslav Lexa
Geochemistry and Geochronology of Middle Tertiary Volcanic Rocks of the Central Chiricahua Mountains, Southeast Arizona Geochemistry and Geochronology of Middle Tertiary Volcanic Rocks of the Central Chiricahua Mountains, Southeast Arizona
Middle Tertiary volcanic rocks of the central Chiricahua Mountains in southeast Arizona are the westernmost constituents of the Eocene-Oligocene Boot Heel volcanic field of southwestern New Mexico and southeastern Arizona. About two dozen volumetric ally and stratigraphically significant volcanic units are present in this area. These include large-volume, regionally distributed ash-flow...
Authors
Edward A. du Bray, John S. Pallister, Lawrence W. Snee
Science and Products
Filter Total Items: 16
Filter Total Items: 100
Compilation of Stratigraphic Thicknesses for Caldera-Related Tertiary Volcanic Rocks, East-Central Nevada and West-Central Utah Compilation of Stratigraphic Thicknesses for Caldera-Related Tertiary Volcanic Rocks, East-Central Nevada and West-Central Utah
The U.S. Geological Survey (USGS), the Desert Research Institute (DRI), and a designee from the State of Utah are currently conducting a water-resources study of aquifers in White Pine County, Nevada, and adjacent areas in Nevada and Utah, in response to concerns about water availability and limited geohydrologic information relevant to ground-water flow in the region. Production of...
Authors
D. S. Sweetkind, E. A. Du Bray
Modal Composition and Age of Intrusions in North-Central and Northeast Nevada Modal Composition and Age of Intrusions in North-Central and Northeast Nevada
Introduction Data presented in this report characterize igneous intrusions of north-central and northeast Nevada and were compiled as part of the Metallogeny of the Great Basin project conducted by the U.S. Geological Survey (USGS) between 2001 and 2007. The compilation pertains to the area bounded by lats 38.5 and 42 N., long 118.5 W., and the Nevada-Utah border (fig. 1). The area...
Authors
Edward A. du Bray, A. Elizabeth Jones Crafford
Geochemical Database for Intrusive Rocks of North-Central and Northeast Nevada Geochemical Database for Intrusive Rocks of North-Central and Northeast Nevada
North-central and northeast Nevada contains numerous large plutons and smaller stocks but also contains many small, shallowly emplaced intrusive bodies, including dikes, sills, and intrusive lava dome complexes. Decades of geologic investigations in the study area demonstrate that many ore deposits, representing diverse ore deposit types, are spatially, and probably temporally and...
Authors
Edward A. du Bray, Michael W. Ressel, Calvin G. Barnes
Petrology of the Crazy Mountains dike swarm and geochronology of associated sills, south-central Montana Petrology of the Crazy Mountains dike swarm and geochronology of associated sills, south-central Montana
No abstract available.
Authors
Edward A. du Bray, Stephen S. Harlan, Anna B. Wilson
Geochemical database for volcanic rocks of the western Cascades, Washington, Oregon, and California Geochemical database for volcanic rocks of the western Cascades, Washington, Oregon, and California
No abstract available.
Authors
Edward A. du Bray, David A. John, David R. Sherrod, Russell C. Evarts, Richard M. Conrey, Jaroslav Lexa
Geochemistry and Geochronology of Middle Tertiary Volcanic Rocks of the Central Chiricahua Mountains, Southeast Arizona Geochemistry and Geochronology of Middle Tertiary Volcanic Rocks of the Central Chiricahua Mountains, Southeast Arizona
Middle Tertiary volcanic rocks of the central Chiricahua Mountains in southeast Arizona are the westernmost constituents of the Eocene-Oligocene Boot Heel volcanic field of southwestern New Mexico and southeastern Arizona. About two dozen volumetric ally and stratigraphically significant volcanic units are present in this area. These include large-volume, regionally distributed ash-flow...
Authors
Edward A. du Bray, John S. Pallister, Lawrence W. Snee