Karen Duttweiler Kelley
Karen Kelley is a Research Geologist with the Geology, Geophysics, and Geochemistry Science Center.
Science and Products
Filter Total Items: 14
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Cripple Creek and other alkaline-related gold deposits in the Southern Rocky Mountains, USA: Influence of regional tectonics Cripple Creek and other alkaline-related gold deposits in the Southern Rocky Mountains, USA: Influence of regional tectonics
Alkaline-related epithermal vein, breccia, disseminated, skarn, and porphyry gold deposits form a belt in the southern Rocky Mountains along the eastern edge of the North American Cordillera. Alkaline igneous rocks and associated hydrothermal deposits formed at two times. The first was during the Laramide orogeny (about 70–40 Ma), with deposits restricted spatially to the Colorado...
Authors
Karen D. Kelley, Steve Ludington
Geologic studies in Alaska by the U.S. Geological Survey, 1998 Geologic studies in Alaska by the U.S. Geological Survey, 1998
The 14 papers that follows continue the series of U.S. Geological Survey (USGS) reports on investigations in the geologic sciences in Alaska. The series presents new and sometimes preliminary findings that are of interest to earth scientists in academia, government, and industry; to land and resource managers; and to the general public. Reports presented in Geologic Studies in Alaska...
Geologic studies in Alaska by the U.S. Geological Survey, 1997 Geologic studies in Alaska by the U.S. Geological Survey, 1997
The eight papers that follow continue the series of U.S. Geological Survey (USGS) reports on investigations in the geologic sciences in Alaska. The series presents new and sometimes preliminary findings that are of interest to earth scientists in academia, government, and industry; to land and resource managers; and to the general public. Reports presented in Geologic Studies in Alaska...
Geochemical data for stream-sediment, lagoon-sediment, heavy-mineral-concentrate, water, and rock samples collected in the western part of the Teller 2 x 3 degree quadrangle, Alaska Geochemical data for stream-sediment, lagoon-sediment, heavy-mineral-concentrate, water, and rock samples collected in the western part of the Teller 2 x 3 degree quadrangle, Alaska
No abstract available.
Authors
C.C. Parnow, K.D. Kelley, R.J. Goldfarb, A. L. Meier
Geochemical and geochronological constraints on the genesis of Au-Te deposits at Cripple Creek, Colorado Geochemical and geochronological constraints on the genesis of Au-Te deposits at Cripple Creek, Colorado
The Cripple Creek district (653 metric tons (t) of Au) consists of Au-Te veins and disseminated gold deposits that are spatially related to alkaline igneous rocks in an Oligocene intrusive complex. Vein paragenesis includes quartz-biotite-K feldspar-fluorite-pyrite followed by base metal sulfides and telluride minerals. Disseminated deposits consist of microcrystalline native gold with...
Authors
K.D. Kelley, S.B. Romberger, D.W. Beaty, J.A. Pontius, L.W. Snee, H. J. Stein, T.B. Thompson
Digital release of stream-sediment, heavy-mineral-concentrate, soil, water, and rock geochemical data collected in the Howard Pass 1 degree by 3 degrees quadrangle, Alaska Digital release of stream-sediment, heavy-mineral-concentrate, soil, water, and rock geochemical data collected in the Howard Pass 1 degree by 3 degrees quadrangle, Alaska
No abstract available.
Authors
K.D. Kelley, E. A. Bailey, Paul H. Briggs, J. M. Motooka, A. L. Meier
Environmental geochemistry of shale-hosted Ag-Pb-Zn massive sulfide deposits in northwest Alaska: Natural background concentrations of metals in water from mineralized areas Environmental geochemistry of shale-hosted Ag-Pb-Zn massive sulfide deposits in northwest Alaska: Natural background concentrations of metals in water from mineralized areas
Red Dog, Lik and Drenchwater are shale-hosted stratiform Ag-Pb-Zn massive sulfide deposits in the northwestern Brooks Range. Natural background concentrations of metals in waters from the undisturbed (unmined) Drenchwater prospect and Lik deposit were compared to pre-mining baseline studies conducted at Red Dog. The primary factors affecting water chemistry are the extent of exposure of...
Authors
K.D. Kelley, C. D. Taylor
Alaska resource data file: Chandler Lake quadrangle Alaska resource data file: Chandler Lake quadrangle
No abstract available.
Authors
K.D. Kelley
Alaska resource data file: Killik River quadrangle Alaska resource data file: Killik River quadrangle
No abstract available.
Authors
Karen D. Kelley
The Alaska Mineral Resource Assessment Program: Background information to accompany geologic and mineral-resource maps of the Killik River 1°x3° quadrangle, northern Alaska The Alaska Mineral Resource Assessment Program: Background information to accompany geologic and mineral-resource maps of the Killik River 1°x3° quadrangle, northern Alaska
This report summarizes results of integrated geological, geochemical, and geophysical field and laboratory studies conducted by the U.S. Geological Survey in the Killik River 1°x3° quadrangle, Brooks Range, northern Alaska. These studies were designed to provide an assessment of the mineral resources of the quadrangle. The geological and geochemical data were the primary sources of...
Authors
Karen D. Kelley, Charles G. Mull
Analytical results of soil, stream sediment, panned concentrate, and water samples from the Lik deposit, northwestern Brooks Range, Alaska Analytical results of soil, stream sediment, panned concentrate, and water samples from the Lik deposit, northwestern Brooks Range, Alaska
No abstract available.
Authors
Paul H. Briggs, J. M. Motooka, E. A. Bailey, B.A. Cieutat, S.A. Burner, K.D. Kelley, W. H. Ficklin
Reconnaissance exploration geochemistry in the central Brooks Range, northern Alaska: Implications for exploration of sediment-hosted zinc-lead-silver deposits Reconnaissance exploration geochemistry in the central Brooks Range, northern Alaska: Implications for exploration of sediment-hosted zinc-lead-silver deposits
A reconnaissance geochemical survey was conducted in the southern Killik River quadrangle, central Brooks Range, northern Alaska. The Brooks Range lies within the zone of continuous permafrost which may partially inhibit chemical weathering and oxidation. The minus 30-mesh and nonmagnetic heavy-mineral concentrate fractions of sediment samples were chosen as the sample media for the...
Authors
K.D. Kelley, D. L. Kelley
Science and Products
Filter Total Items: 14
No Result Found
Filter Total Items: 89
Cripple Creek and other alkaline-related gold deposits in the Southern Rocky Mountains, USA: Influence of regional tectonics Cripple Creek and other alkaline-related gold deposits in the Southern Rocky Mountains, USA: Influence of regional tectonics
Alkaline-related epithermal vein, breccia, disseminated, skarn, and porphyry gold deposits form a belt in the southern Rocky Mountains along the eastern edge of the North American Cordillera. Alkaline igneous rocks and associated hydrothermal deposits formed at two times. The first was during the Laramide orogeny (about 70–40 Ma), with deposits restricted spatially to the Colorado...
Authors
Karen D. Kelley, Steve Ludington
Geologic studies in Alaska by the U.S. Geological Survey, 1998 Geologic studies in Alaska by the U.S. Geological Survey, 1998
The 14 papers that follows continue the series of U.S. Geological Survey (USGS) reports on investigations in the geologic sciences in Alaska. The series presents new and sometimes preliminary findings that are of interest to earth scientists in academia, government, and industry; to land and resource managers; and to the general public. Reports presented in Geologic Studies in Alaska...
Geologic studies in Alaska by the U.S. Geological Survey, 1997 Geologic studies in Alaska by the U.S. Geological Survey, 1997
The eight papers that follow continue the series of U.S. Geological Survey (USGS) reports on investigations in the geologic sciences in Alaska. The series presents new and sometimes preliminary findings that are of interest to earth scientists in academia, government, and industry; to land and resource managers; and to the general public. Reports presented in Geologic Studies in Alaska...
Geochemical data for stream-sediment, lagoon-sediment, heavy-mineral-concentrate, water, and rock samples collected in the western part of the Teller 2 x 3 degree quadrangle, Alaska Geochemical data for stream-sediment, lagoon-sediment, heavy-mineral-concentrate, water, and rock samples collected in the western part of the Teller 2 x 3 degree quadrangle, Alaska
No abstract available.
Authors
C.C. Parnow, K.D. Kelley, R.J. Goldfarb, A. L. Meier
Geochemical and geochronological constraints on the genesis of Au-Te deposits at Cripple Creek, Colorado Geochemical and geochronological constraints on the genesis of Au-Te deposits at Cripple Creek, Colorado
The Cripple Creek district (653 metric tons (t) of Au) consists of Au-Te veins and disseminated gold deposits that are spatially related to alkaline igneous rocks in an Oligocene intrusive complex. Vein paragenesis includes quartz-biotite-K feldspar-fluorite-pyrite followed by base metal sulfides and telluride minerals. Disseminated deposits consist of microcrystalline native gold with...
Authors
K.D. Kelley, S.B. Romberger, D.W. Beaty, J.A. Pontius, L.W. Snee, H. J. Stein, T.B. Thompson
Digital release of stream-sediment, heavy-mineral-concentrate, soil, water, and rock geochemical data collected in the Howard Pass 1 degree by 3 degrees quadrangle, Alaska Digital release of stream-sediment, heavy-mineral-concentrate, soil, water, and rock geochemical data collected in the Howard Pass 1 degree by 3 degrees quadrangle, Alaska
No abstract available.
Authors
K.D. Kelley, E. A. Bailey, Paul H. Briggs, J. M. Motooka, A. L. Meier
Environmental geochemistry of shale-hosted Ag-Pb-Zn massive sulfide deposits in northwest Alaska: Natural background concentrations of metals in water from mineralized areas Environmental geochemistry of shale-hosted Ag-Pb-Zn massive sulfide deposits in northwest Alaska: Natural background concentrations of metals in water from mineralized areas
Red Dog, Lik and Drenchwater are shale-hosted stratiform Ag-Pb-Zn massive sulfide deposits in the northwestern Brooks Range. Natural background concentrations of metals in waters from the undisturbed (unmined) Drenchwater prospect and Lik deposit were compared to pre-mining baseline studies conducted at Red Dog. The primary factors affecting water chemistry are the extent of exposure of...
Authors
K.D. Kelley, C. D. Taylor
Alaska resource data file: Chandler Lake quadrangle Alaska resource data file: Chandler Lake quadrangle
No abstract available.
Authors
K.D. Kelley
Alaska resource data file: Killik River quadrangle Alaska resource data file: Killik River quadrangle
No abstract available.
Authors
Karen D. Kelley
The Alaska Mineral Resource Assessment Program: Background information to accompany geologic and mineral-resource maps of the Killik River 1°x3° quadrangle, northern Alaska The Alaska Mineral Resource Assessment Program: Background information to accompany geologic and mineral-resource maps of the Killik River 1°x3° quadrangle, northern Alaska
This report summarizes results of integrated geological, geochemical, and geophysical field and laboratory studies conducted by the U.S. Geological Survey in the Killik River 1°x3° quadrangle, Brooks Range, northern Alaska. These studies were designed to provide an assessment of the mineral resources of the quadrangle. The geological and geochemical data were the primary sources of...
Authors
Karen D. Kelley, Charles G. Mull
Analytical results of soil, stream sediment, panned concentrate, and water samples from the Lik deposit, northwestern Brooks Range, Alaska Analytical results of soil, stream sediment, panned concentrate, and water samples from the Lik deposit, northwestern Brooks Range, Alaska
No abstract available.
Authors
Paul H. Briggs, J. M. Motooka, E. A. Bailey, B.A. Cieutat, S.A. Burner, K.D. Kelley, W. H. Ficklin
Reconnaissance exploration geochemistry in the central Brooks Range, northern Alaska: Implications for exploration of sediment-hosted zinc-lead-silver deposits Reconnaissance exploration geochemistry in the central Brooks Range, northern Alaska: Implications for exploration of sediment-hosted zinc-lead-silver deposits
A reconnaissance geochemical survey was conducted in the southern Killik River quadrangle, central Brooks Range, northern Alaska. The Brooks Range lies within the zone of continuous permafrost which may partially inhibit chemical weathering and oxidation. The minus 30-mesh and nonmagnetic heavy-mineral concentrate fractions of sediment samples were chosen as the sample media for the...
Authors
K.D. Kelley, D. L. Kelley