Richard Wanty (Former Employee)
Science and Products
Filter Total Items: 114
Environmental effects of hydrothermal alteration and historical mining on water and sediment quality in Central Colorado
The U.S. Geological Survey conducted an environmental assessment of 198 catchments in a 54,000-km2 area of central Colorado, much of which is on Federal land. The Colorado Mineral Belt, a northeast-trending zone of historical base- and precious-metal mining, cuts diagonally across the study area. The investigation was intended to test the hypothesis that degraded water and sediment quality are res
Authors
S. E. Church, D. L. Fey, T. L. Klein, T.S. Schmidt, R. B. Wanty, E.H. deWitt, B.W. Rockwell, Juan C.A. San
Aquatic ecosystems in Central Colorado are influenced by mineral forming processes and historical mining
Stream water and sediment toxicity to aquatic insects were quantified from central Colorado catchments to distinguish the effect of geologic processes which result in high background metals concentrations from historical mining. Our sampling design targeted small catchments underlain by rocks of a single lithology, which allowed the development of biological and geochemical baselines without the c
Authors
T.S. Schmidt, S. E. Church, W.H. Clements, K.A. Mitchell, D. L. Fey, R. B. Wanty, P. L. Verplanck, Juan C.A. San, T. L. Klein, E.H. deWitt, B.W. Rockwell
A regional soil and sediment geochemical study in northern California
Regional-scale variations in soil geochemistry were investigated in a 20,000-km2 study area in northern California that includes the western slope of the Sierra Nevada, the southern Sacramento Valley and the northern Coast Ranges. Over 1300 archival soil samples collected from the late 1970s to 1980 in El Dorado, Placer, Sutter, Sacramento, Yolo and Solano counties were analyzed for 42 elements by
Authors
M. B. Goldhaber, J.M. Morrison, J.M. Holloway, R. B. Wanty, D.R. Helsel, D. B. Smith
A regional-scale study of chromium and nickel in soils of northern California, USA
A soil geochemical survey was conducted in a 27,000-km2 study area of northern California that includes the Sierra Nevada Mountains, the Sacramento Valley, and the northern Coast Range. The results show that soil geochemistry in the Sacramento Valley is controlled primarily by the transport and weathering of parent material from the Coast Range to the west and the Sierra Nevada to the east. Chemic
Authors
J.M. Morrison, M. B. Goldhaber, L. Lee, J.M. Holloway, R. B. Wanty, R.E. Wolf, J. F. Ranville
Application of iron and zinc isotopes to track the sources and mechanisms of metal loading in a mountain watershed
Here the hydrogeochemical constraints of a tracer dilution study are combined with Fe and Zn isotopic measurements to pinpoint metal loading sources and attenuation mechanisms in an alpine watershed impacted by acid mine drainage. In the tested mountain catchment, δ56Fe and δ66Zn isotopic signatures of filtered stream water samples varied by ∼3.5‰ and 0.4‰, respectively. The inherent differences i
Authors
D.M. Borrok, R. B. Wanty, Ridley W. Ian, P. J. Lamothe, B. A. Kimball, P. L. Verplanck, R.L. Runkel
Regional variations in water quality and relationships to soil and bedrock weathering in the southern Sacramento Valley, California, USA
Regional patterns in ground- and surface-water chemistry of the southern Sacramento Valley in California were evaluated using publicly available geochemical data from the US Geological Survey's National Water Information System (NWIS). Within the boundaries of the study area, more than 2300 ground-water analyses and more than 20,000 surface-water analyses were available. Ground-waters from the wes
Authors
R. B. Wanty, M. B. Goldhaber, J.M. Morrison, L. Lee
Geochemistry of surface water in alpine catchments in central Colorado, USA: Resolving host-rock effects at different spatial scales
The US Geological Survey is conducting a study of surface-water quality in the Rocky Mountains of central Colorado, an area of approximately 55,000 km2. Using new and existing geologic maps, the more than 200 rock formations represented in the area were arranged into 17 groups based on lithologic similarity. The dominant regional geologic feature affecting water quality in central Colorado is the
Authors
R. B. Wanty, P. L. Verplanck, Juan C.A. San, S. E. Church, T.S. Schmidt, D. L. Fey, E.H. deWitt, T. L. Klein
Regional Geochemical Results from Analyses of Stream-Water, Stream-Sediment, Soil, Soil-Water, Bedrock, and Vegetation Samples, Tangle Lakes District, Alaska
We report chemical analyses of stream-water, stream-sediment, soil, soil-water, bedrock, and vegetation samples collected from the headwaters of the Delta River (Tangle Lakes District, Mount Hayes 1:250,000-scale quadrangle) in east-central Alaska for the period June 20-25, 2006. Additionally, we present mineralogic analyses of stream sediment, concentrated by panning. The study area includes the
Authors
Bronwen Wang, L. P. Gough, R. B. Wanty, G. K. Lee, James Vohden, J. M. O'Neill, L.J. Kerin
Hydrogeochemical investigation of the Standard Mine Vicinity, Upper Elk Creek Basin, Colorado
Ground- and surface-water samples were collected in the vicinity of the Standard Mine in west-central Colorado in order to characterize the local ground-water flow system, determine metal concentrations in local ground water, and better understand factors controlling the discharge of metal-rich waters from the mine. The sampling program included a one-time sampling of springs, mine adits, and expl
Authors
Andrew H. Manning, Philip L. Verplanck, M. Alisa Mast, Richard B. Wanty
Presentation Showing Results of a Hydrogeochemical Investigation of the Standard Mine Vicinity, Upper Elk Creek Basin, Colorado
PREFACE
This Open-File Report consists of a presentation given in Crested Butte, Colorado on December 13, 2007 to the Standard Mine Advisory Group. The presentation was paired with another presentation given by the Colorado Division of Reclamation, Mining, and Safety on the physical features and geology of the Standard Mine. The presentation in this Open-File Report summarizes the results and c
Authors
Andrew H. Manning, Philip L. Verplanck, M. Alisa Mast, Richard B. Wanty
Isotopic variations of dissolved copper and zinc in stream waters affected by historical mining
Zinc and Cu play important roles in the biogeochemistry of natural systems, and it is likely that these interactions result in mass-dependent fractionations of their stable isotopes. In this study, we examine the relative abundances of dissolved Zn and Cu isotopes in a variety of stream waters draining six historical mining districts located in the United States and Europe. Our goals were to (1) d
Authors
David M. Borrok, David Nimick, Richard B. Wanty, William I. Ridley
Fractionation of Cu and Zn isotopes during adsorption onto amorphous Fe(III) oxyhydroxide: Experimental mixing of acid rock drainage and ambient river water
Fractionation of Cu and Zn isotopes during adsorption onto amorphous ferric oxyhydroxide is examined in experimental mixtures of metal-rich acid rock drainage and relatively pure river water and during batch adsorption experiments using synthetic ferrihydrite. A diverse set of Cu- and Zn-bearing solutions was examined, including natural waters, complex synthetic acid rock drainage, and simple NaNO
Authors
Laurie S. Balistrieri, D.M. Borrok, R. B. Wanty, W.I. Ridley
Non-USGS Publications**
Wanty, Richard B., 1986, Geochemistry of vanadium in an epigenetic sandstone-hosted vanadium-uranium deposit, Henry basin, Utah: Ph.D. Dissertation, Colorado School of Mines, 198 pp.
Wanty, Richard B., 1981, The use of radiogenic elements, and selected trace elements and their solution-mineral equilibria in groundwater as exploration tools for uranium deposits: M.S. Thesis, Colorado School of Mines, 151 pp.
Wanty, R.B., Langmuir, D., and Chatham, J.R., 1981, Groundwater prospecting for sandstone-type uranium deposits: The merits of mineral-solution equilibria versus single element tracer methods: U.S. Department of Energy, Grand Junction Office Report GJO-79-360-E, v. 2, 91 pp.
Chatham, J.R., Wanty, R.B., and Langmuir, D., 1981, National Uranium Resource Evaluation. Groundwater prospecting for sandstone-type uranium deposits: the merits of mineral-solution equilibria versus single element tracer methods. Final Report: U.S. Department of Energy, Grand Junction Office Report GJO-79-360-E, 197 pp.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 114
Environmental effects of hydrothermal alteration and historical mining on water and sediment quality in Central Colorado
The U.S. Geological Survey conducted an environmental assessment of 198 catchments in a 54,000-km2 area of central Colorado, much of which is on Federal land. The Colorado Mineral Belt, a northeast-trending zone of historical base- and precious-metal mining, cuts diagonally across the study area. The investigation was intended to test the hypothesis that degraded water and sediment quality are res
Authors
S. E. Church, D. L. Fey, T. L. Klein, T.S. Schmidt, R. B. Wanty, E.H. deWitt, B.W. Rockwell, Juan C.A. San
Aquatic ecosystems in Central Colorado are influenced by mineral forming processes and historical mining
Stream water and sediment toxicity to aquatic insects were quantified from central Colorado catchments to distinguish the effect of geologic processes which result in high background metals concentrations from historical mining. Our sampling design targeted small catchments underlain by rocks of a single lithology, which allowed the development of biological and geochemical baselines without the c
Authors
T.S. Schmidt, S. E. Church, W.H. Clements, K.A. Mitchell, D. L. Fey, R. B. Wanty, P. L. Verplanck, Juan C.A. San, T. L. Klein, E.H. deWitt, B.W. Rockwell
A regional soil and sediment geochemical study in northern California
Regional-scale variations in soil geochemistry were investigated in a 20,000-km2 study area in northern California that includes the western slope of the Sierra Nevada, the southern Sacramento Valley and the northern Coast Ranges. Over 1300 archival soil samples collected from the late 1970s to 1980 in El Dorado, Placer, Sutter, Sacramento, Yolo and Solano counties were analyzed for 42 elements by
Authors
M. B. Goldhaber, J.M. Morrison, J.M. Holloway, R. B. Wanty, D.R. Helsel, D. B. Smith
A regional-scale study of chromium and nickel in soils of northern California, USA
A soil geochemical survey was conducted in a 27,000-km2 study area of northern California that includes the Sierra Nevada Mountains, the Sacramento Valley, and the northern Coast Range. The results show that soil geochemistry in the Sacramento Valley is controlled primarily by the transport and weathering of parent material from the Coast Range to the west and the Sierra Nevada to the east. Chemic
Authors
J.M. Morrison, M. B. Goldhaber, L. Lee, J.M. Holloway, R. B. Wanty, R.E. Wolf, J. F. Ranville
Application of iron and zinc isotopes to track the sources and mechanisms of metal loading in a mountain watershed
Here the hydrogeochemical constraints of a tracer dilution study are combined with Fe and Zn isotopic measurements to pinpoint metal loading sources and attenuation mechanisms in an alpine watershed impacted by acid mine drainage. In the tested mountain catchment, δ56Fe and δ66Zn isotopic signatures of filtered stream water samples varied by ∼3.5‰ and 0.4‰, respectively. The inherent differences i
Authors
D.M. Borrok, R. B. Wanty, Ridley W. Ian, P. J. Lamothe, B. A. Kimball, P. L. Verplanck, R.L. Runkel
Regional variations in water quality and relationships to soil and bedrock weathering in the southern Sacramento Valley, California, USA
Regional patterns in ground- and surface-water chemistry of the southern Sacramento Valley in California were evaluated using publicly available geochemical data from the US Geological Survey's National Water Information System (NWIS). Within the boundaries of the study area, more than 2300 ground-water analyses and more than 20,000 surface-water analyses were available. Ground-waters from the wes
Authors
R. B. Wanty, M. B. Goldhaber, J.M. Morrison, L. Lee
Geochemistry of surface water in alpine catchments in central Colorado, USA: Resolving host-rock effects at different spatial scales
The US Geological Survey is conducting a study of surface-water quality in the Rocky Mountains of central Colorado, an area of approximately 55,000 km2. Using new and existing geologic maps, the more than 200 rock formations represented in the area were arranged into 17 groups based on lithologic similarity. The dominant regional geologic feature affecting water quality in central Colorado is the
Authors
R. B. Wanty, P. L. Verplanck, Juan C.A. San, S. E. Church, T.S. Schmidt, D. L. Fey, E.H. deWitt, T. L. Klein
Regional Geochemical Results from Analyses of Stream-Water, Stream-Sediment, Soil, Soil-Water, Bedrock, and Vegetation Samples, Tangle Lakes District, Alaska
We report chemical analyses of stream-water, stream-sediment, soil, soil-water, bedrock, and vegetation samples collected from the headwaters of the Delta River (Tangle Lakes District, Mount Hayes 1:250,000-scale quadrangle) in east-central Alaska for the period June 20-25, 2006. Additionally, we present mineralogic analyses of stream sediment, concentrated by panning. The study area includes the
Authors
Bronwen Wang, L. P. Gough, R. B. Wanty, G. K. Lee, James Vohden, J. M. O'Neill, L.J. Kerin
Hydrogeochemical investigation of the Standard Mine Vicinity, Upper Elk Creek Basin, Colorado
Ground- and surface-water samples were collected in the vicinity of the Standard Mine in west-central Colorado in order to characterize the local ground-water flow system, determine metal concentrations in local ground water, and better understand factors controlling the discharge of metal-rich waters from the mine. The sampling program included a one-time sampling of springs, mine adits, and expl
Authors
Andrew H. Manning, Philip L. Verplanck, M. Alisa Mast, Richard B. Wanty
Presentation Showing Results of a Hydrogeochemical Investigation of the Standard Mine Vicinity, Upper Elk Creek Basin, Colorado
PREFACE
This Open-File Report consists of a presentation given in Crested Butte, Colorado on December 13, 2007 to the Standard Mine Advisory Group. The presentation was paired with another presentation given by the Colorado Division of Reclamation, Mining, and Safety on the physical features and geology of the Standard Mine. The presentation in this Open-File Report summarizes the results and c
Authors
Andrew H. Manning, Philip L. Verplanck, M. Alisa Mast, Richard B. Wanty
Isotopic variations of dissolved copper and zinc in stream waters affected by historical mining
Zinc and Cu play important roles in the biogeochemistry of natural systems, and it is likely that these interactions result in mass-dependent fractionations of their stable isotopes. In this study, we examine the relative abundances of dissolved Zn and Cu isotopes in a variety of stream waters draining six historical mining districts located in the United States and Europe. Our goals were to (1) d
Authors
David M. Borrok, David Nimick, Richard B. Wanty, William I. Ridley
Fractionation of Cu and Zn isotopes during adsorption onto amorphous Fe(III) oxyhydroxide: Experimental mixing of acid rock drainage and ambient river water
Fractionation of Cu and Zn isotopes during adsorption onto amorphous ferric oxyhydroxide is examined in experimental mixtures of metal-rich acid rock drainage and relatively pure river water and during batch adsorption experiments using synthetic ferrihydrite. A diverse set of Cu- and Zn-bearing solutions was examined, including natural waters, complex synthetic acid rock drainage, and simple NaNO
Authors
Laurie S. Balistrieri, D.M. Borrok, R. B. Wanty, W.I. Ridley
Non-USGS Publications**
Wanty, Richard B., 1986, Geochemistry of vanadium in an epigenetic sandstone-hosted vanadium-uranium deposit, Henry basin, Utah: Ph.D. Dissertation, Colorado School of Mines, 198 pp.
Wanty, Richard B., 1981, The use of radiogenic elements, and selected trace elements and their solution-mineral equilibria in groundwater as exploration tools for uranium deposits: M.S. Thesis, Colorado School of Mines, 151 pp.
Wanty, R.B., Langmuir, D., and Chatham, J.R., 1981, Groundwater prospecting for sandstone-type uranium deposits: The merits of mineral-solution equilibria versus single element tracer methods: U.S. Department of Energy, Grand Junction Office Report GJO-79-360-E, v. 2, 91 pp.
Chatham, J.R., Wanty, R.B., and Langmuir, D., 1981, National Uranium Resource Evaluation. Groundwater prospecting for sandstone-type uranium deposits: the merits of mineral-solution equilibria versus single element tracer methods. Final Report: U.S. Department of Energy, Grand Junction Office Report GJO-79-360-E, 197 pp.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government