D. Kirk Nordstrom (Former Employee)
Science and Products
Filter Total Items: 164
Sulfolobus islandicus meta-populations in Yellowstone National Park hot springs Sulfolobus islandicus meta-populations in Yellowstone National Park hot springs
Abiotic and biotic forces shape the structure and evolution of microbial populations. We investigated forces that shape the spatial and temporal population structure of Sulfolobus islandicus by comparing geochemical and molecular analysis from seven hot springs in five regions sampled over 3 years in Yellowstone National Park. Through deep amplicon sequencing, we uncovered 148 unique...
Authors
Kate M. Campbell, Angela Kouris, Whitney England, Rika E. Anderson, R. Blaine McCleskey, D. Kirk Nordstrom, Rachel J. Whitaker
A geochemical examination of humidity cell tests A geochemical examination of humidity cell tests
Humidity cell tests (HCTs) are long-term (20 to >300 weeks) leach tests that are considered by some to be the among the most reliable geochemical characterization methods for estimating the leachate quality of mined materials. A number of modifications have been added to the original HCT method, but the interpretation of test results varies widely. We suggest that the HCTs represent an
Authors
Ann Maest, D. Kirk Nordstrom
Thermodynamic properties in the Fe(II)-Fe(III)-As(V)-HClO4–H2O and Fe(II)-Fe(III)-As(V)-HCl–H2O systems from 5 to 90 °C Thermodynamic properties in the Fe(II)-Fe(III)-As(V)-HClO4–H2O and Fe(II)-Fe(III)-As(V)-HCl–H2O systems from 5 to 90 °C
Fe-As mineral solubility and associated aqueous species have been intensively studied because of the environmental need to immobilize arsenic. The thermodynamic data for aqueous iron-arsenic species are inadequately characterized, however. The Gibbs free energy, enthalpy, entropy, and heat capacity and activity coefficients were refined in the Fe(II)-Fe(III)-As(V)-HClO4-H2O and Fe(II)-Fe...
Authors
Xiangyu Zhu, D. Kirk Nordstrom, R. Blaine McCleskey, Rucheng Wang, Xiancai Lu
Multireaction equilibrium geothermometry: A sensitivity analysis using data from the Lower Geyser Basin, Yellowstone National Park, USA Multireaction equilibrium geothermometry: A sensitivity analysis using data from the Lower Geyser Basin, Yellowstone National Park, USA
A multireaction chemical equilibria geothermometry (MEG) model applicable to high-temperature geothermal systems has been developed over the past three decades. Given sufficient data, this model provides more constraint on calculated reservoir temperatures than classical chemical geothermometers that are based on either the concentration of silica (SiO2), or the ratios of cation...
Authors
Jonathan M. King, Shaul Hurwitz, Jacob B. Lowenstern, D. Kirk Nordstrom, R. Blaine McCleskey
Ionic molal conductivities, activity coefficients, and dissociation constants of HAsO42− and H2AsO4− from 5 to 90°C and ionic strengths from 0.001 up to 3 mol kg−1 and applications in natur Ionic molal conductivities, activity coefficients, and dissociation constants of HAsO42− and H2AsO4− from 5 to 90°C and ionic strengths from 0.001 up to 3 mol kg−1 and applications in natur
Arsenic is known to be one of the most toxic inorganic elements, causing worldwide environmental contamination. However, many fundamental properties related to aqueous arsenic species are not well known which will inhibit our ability to understand the geochemical behavior of arsenic (e.g. speciation, transport, and solubility). Here, the electrical conductivity of Na2HAsO4 solutions has...
Authors
Xiangyu Zhu, D. Kirk Nordstrom, R. Blaine McCleskey, Rucheng Wang
Geothermal solute flux monitoring and the source and fate of solutes in the Snake River, Yellowstone National Park, WY Geothermal solute flux monitoring and the source and fate of solutes in the Snake River, Yellowstone National Park, WY
The combined geothermal discharge from over 10,000 features in Yellowstone National Park (YNP) can be can be estimated from the Cl flux in the Madison, Yellowstone, Falls, and Snake Rivers. Over the last 30 years, the Cl flux in YNP Rivers has been calculated using discharge measurements and Cl concentrations determined in discrete water samples and it has been determined that...
Authors
R. Blaine McCleskey, Jacob B. Lowenstern, Jonas Schaper, D. Kirk Nordstrom, Henry P. Heasler, Dan Mahony
Dissolved gases in hydrothermal (phreatic) and geyser eruptions at Yellowstone National Park, USA Dissolved gases in hydrothermal (phreatic) and geyser eruptions at Yellowstone National Park, USA
Multiphase and multicomponent fluid flow in the shallow continental crust plays a significant role in a variety of processes over a broad range of temperatures and pressures. The presence of dissolved gases in aqueous fluids reduces the liquid stability field toward lower temperatures and enhances the explosivity potential with respect to pure water. Therefore, in areas where magma is...
Authors
Shaul Hurwitz, Laura Clor, R. Blaine McCleskey, D. Kirk Nordstrom, Andrew G. Hunt, William C. Evans
An overview of environmental impacts and reclamation efforts at the Iron Mountain mine, Shasta County, California An overview of environmental impacts and reclamation efforts at the Iron Mountain mine, Shasta County, California
No abstract available
Authors
James A Jacobs, Stephen M. Testa, Charles N. Alpers, D. Kirk Nordstrom
An environmental survey of Serpentine Hot Springs: Geology, hydrology, geochemistry, and microbiology An environmental survey of Serpentine Hot Springs: Geology, hydrology, geochemistry, and microbiology
Serpentine Hot Springs is the most visited site in the Bering Land Bridge National Preserve. The hot springs have traditionally been used by the Native people of the Seward Peninsula for religious, medicinal and spiritual purposes and continue to be used in many of the same ways by Native people today. The hot springs are also popular with non-Native users from Nome and other communities
Authors
D. Kirk Nordstrom, Linda Hasselbach, Steven E. Ingebritsen, Dana Skorupa, R. Blaine McCleskey, Timothy R. McDermott
Effects and quantification of acid runoff from sulfide-bearing rock deposited during construction of Highway E18, Norway Effects and quantification of acid runoff from sulfide-bearing rock deposited during construction of Highway E18, Norway
The Highway E18 between the cities of Grimstad and Kristiansand, southern Norway, constructed in the period 2006–2009, cuts through sulfide-bearing rock. The geology of this area is dominated by slowly-weathering gneiss and granites, and oxidation of fresh rock surfaces can result in acidification of surface water. Sulfide-containing rock waste from excavations during construction work...
Authors
Atle Hindar, D. Kirk Nordstrom
Hydrogeochemistry and microbiology of mine drainage: An update Hydrogeochemistry and microbiology of mine drainage: An update
The extraction of mineral resources requires access through underground workings, or open pit operations, or through drillholes for solution mining. Additionally, mineral processing can generate large quantities of waste, including mill tailings, waste rock and refinery wastes, heap leach pads, and slag. Thus, through mining and mineral processing activities, large surface areas of...
Authors
D. Kirk Nordstrom, D.W Blowes, C.J. Ptacek
Baseline and premining geochemical characterization of mined sites Baseline and premining geochemical characterization of mined sites
A rational goal for environmental restoration of new, active, or inactive mine sites would be ‘natural background’ or the environmental conditions that existed before any mining activities or other related anthropogenic activities. In a strictly technical sense, there is no such thing as natural background (or entirely non-anthropogenic) existing today because there is no part of the...
Authors
D. Kirk Nordstrom
Science and Products
Filter Total Items: 164
Sulfolobus islandicus meta-populations in Yellowstone National Park hot springs Sulfolobus islandicus meta-populations in Yellowstone National Park hot springs
Abiotic and biotic forces shape the structure and evolution of microbial populations. We investigated forces that shape the spatial and temporal population structure of Sulfolobus islandicus by comparing geochemical and molecular analysis from seven hot springs in five regions sampled over 3 years in Yellowstone National Park. Through deep amplicon sequencing, we uncovered 148 unique...
Authors
Kate M. Campbell, Angela Kouris, Whitney England, Rika E. Anderson, R. Blaine McCleskey, D. Kirk Nordstrom, Rachel J. Whitaker
A geochemical examination of humidity cell tests A geochemical examination of humidity cell tests
Humidity cell tests (HCTs) are long-term (20 to >300 weeks) leach tests that are considered by some to be the among the most reliable geochemical characterization methods for estimating the leachate quality of mined materials. A number of modifications have been added to the original HCT method, but the interpretation of test results varies widely. We suggest that the HCTs represent an
Authors
Ann Maest, D. Kirk Nordstrom
Thermodynamic properties in the Fe(II)-Fe(III)-As(V)-HClO4–H2O and Fe(II)-Fe(III)-As(V)-HCl–H2O systems from 5 to 90 °C Thermodynamic properties in the Fe(II)-Fe(III)-As(V)-HClO4–H2O and Fe(II)-Fe(III)-As(V)-HCl–H2O systems from 5 to 90 °C
Fe-As mineral solubility and associated aqueous species have been intensively studied because of the environmental need to immobilize arsenic. The thermodynamic data for aqueous iron-arsenic species are inadequately characterized, however. The Gibbs free energy, enthalpy, entropy, and heat capacity and activity coefficients were refined in the Fe(II)-Fe(III)-As(V)-HClO4-H2O and Fe(II)-Fe...
Authors
Xiangyu Zhu, D. Kirk Nordstrom, R. Blaine McCleskey, Rucheng Wang, Xiancai Lu
Multireaction equilibrium geothermometry: A sensitivity analysis using data from the Lower Geyser Basin, Yellowstone National Park, USA Multireaction equilibrium geothermometry: A sensitivity analysis using data from the Lower Geyser Basin, Yellowstone National Park, USA
A multireaction chemical equilibria geothermometry (MEG) model applicable to high-temperature geothermal systems has been developed over the past three decades. Given sufficient data, this model provides more constraint on calculated reservoir temperatures than classical chemical geothermometers that are based on either the concentration of silica (SiO2), or the ratios of cation...
Authors
Jonathan M. King, Shaul Hurwitz, Jacob B. Lowenstern, D. Kirk Nordstrom, R. Blaine McCleskey
Ionic molal conductivities, activity coefficients, and dissociation constants of HAsO42− and H2AsO4− from 5 to 90°C and ionic strengths from 0.001 up to 3 mol kg−1 and applications in natur Ionic molal conductivities, activity coefficients, and dissociation constants of HAsO42− and H2AsO4− from 5 to 90°C and ionic strengths from 0.001 up to 3 mol kg−1 and applications in natur
Arsenic is known to be one of the most toxic inorganic elements, causing worldwide environmental contamination. However, many fundamental properties related to aqueous arsenic species are not well known which will inhibit our ability to understand the geochemical behavior of arsenic (e.g. speciation, transport, and solubility). Here, the electrical conductivity of Na2HAsO4 solutions has...
Authors
Xiangyu Zhu, D. Kirk Nordstrom, R. Blaine McCleskey, Rucheng Wang
Geothermal solute flux monitoring and the source and fate of solutes in the Snake River, Yellowstone National Park, WY Geothermal solute flux monitoring and the source and fate of solutes in the Snake River, Yellowstone National Park, WY
The combined geothermal discharge from over 10,000 features in Yellowstone National Park (YNP) can be can be estimated from the Cl flux in the Madison, Yellowstone, Falls, and Snake Rivers. Over the last 30 years, the Cl flux in YNP Rivers has been calculated using discharge measurements and Cl concentrations determined in discrete water samples and it has been determined that...
Authors
R. Blaine McCleskey, Jacob B. Lowenstern, Jonas Schaper, D. Kirk Nordstrom, Henry P. Heasler, Dan Mahony
Dissolved gases in hydrothermal (phreatic) and geyser eruptions at Yellowstone National Park, USA Dissolved gases in hydrothermal (phreatic) and geyser eruptions at Yellowstone National Park, USA
Multiphase and multicomponent fluid flow in the shallow continental crust plays a significant role in a variety of processes over a broad range of temperatures and pressures. The presence of dissolved gases in aqueous fluids reduces the liquid stability field toward lower temperatures and enhances the explosivity potential with respect to pure water. Therefore, in areas where magma is...
Authors
Shaul Hurwitz, Laura Clor, R. Blaine McCleskey, D. Kirk Nordstrom, Andrew G. Hunt, William C. Evans
An overview of environmental impacts and reclamation efforts at the Iron Mountain mine, Shasta County, California An overview of environmental impacts and reclamation efforts at the Iron Mountain mine, Shasta County, California
No abstract available
Authors
James A Jacobs, Stephen M. Testa, Charles N. Alpers, D. Kirk Nordstrom
An environmental survey of Serpentine Hot Springs: Geology, hydrology, geochemistry, and microbiology An environmental survey of Serpentine Hot Springs: Geology, hydrology, geochemistry, and microbiology
Serpentine Hot Springs is the most visited site in the Bering Land Bridge National Preserve. The hot springs have traditionally been used by the Native people of the Seward Peninsula for religious, medicinal and spiritual purposes and continue to be used in many of the same ways by Native people today. The hot springs are also popular with non-Native users from Nome and other communities
Authors
D. Kirk Nordstrom, Linda Hasselbach, Steven E. Ingebritsen, Dana Skorupa, R. Blaine McCleskey, Timothy R. McDermott
Effects and quantification of acid runoff from sulfide-bearing rock deposited during construction of Highway E18, Norway Effects and quantification of acid runoff from sulfide-bearing rock deposited during construction of Highway E18, Norway
The Highway E18 between the cities of Grimstad and Kristiansand, southern Norway, constructed in the period 2006–2009, cuts through sulfide-bearing rock. The geology of this area is dominated by slowly-weathering gneiss and granites, and oxidation of fresh rock surfaces can result in acidification of surface water. Sulfide-containing rock waste from excavations during construction work...
Authors
Atle Hindar, D. Kirk Nordstrom
Hydrogeochemistry and microbiology of mine drainage: An update Hydrogeochemistry and microbiology of mine drainage: An update
The extraction of mineral resources requires access through underground workings, or open pit operations, or through drillholes for solution mining. Additionally, mineral processing can generate large quantities of waste, including mill tailings, waste rock and refinery wastes, heap leach pads, and slag. Thus, through mining and mineral processing activities, large surface areas of...
Authors
D. Kirk Nordstrom, D.W Blowes, C.J. Ptacek
Baseline and premining geochemical characterization of mined sites Baseline and premining geochemical characterization of mined sites
A rational goal for environmental restoration of new, active, or inactive mine sites would be ‘natural background’ or the environmental conditions that existed before any mining activities or other related anthropogenic activities. In a strictly technical sense, there is no such thing as natural background (or entirely non-anthropogenic) existing today because there is no part of the...
Authors
D. Kirk Nordstrom
*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