Craig A Johnson, Ph.D.
Craig Johnson is a Research Geologist with the Geology, Geophysics, and Geochemistry Science Center.
Craig attended Dartmouth (AB), Michigan (MS), and Yale (PhD). He held a NASA postdoc and a staff position at the American Museum of Natural History in New York prior to joining the USGS in 1992. Craig is responsible for a stable isotope laboratory in which isotopes of carbon, hydrogen, nitrogen, oxygen, and sulfur are measured in rocks, waters, gases, and biological materials. Craig studies ore genesis, environmental impacts of mining, the source and fate of solutes in natural waters and crustal fluids, the isotopic record of marine sulfate, and isotopic records of paleoenvironments.
Science and Products
Filter Total Items: 89
Cyanide speciation at four gold leach operations undergoing remediation Cyanide speciation at four gold leach operations undergoing remediation
Analyses have been made of 81 effluents from four gold leach operations in various stages of remediation to identify the most-persistent cyanide species. Total cyanide and weak acid-dissociable (WAD) cyanide were measured using improved methods, and metals known to form stable cyanocomplexes were also measured. Typically, total cyanide greatly exceeded WAD indicating that cyanide was...
Authors
Craig Johnson, David Grimes, Reinhard Leinz, Robert Rye
Spatial and temporal zoning of hydrothermal alteration and mineralization in the Sossego iron oxide-copper-gold deposit, Carajás Mineral Province, Brazil: Paragenesis and stable isotope constraints Spatial and temporal zoning of hydrothermal alteration and mineralization in the Sossego iron oxide-copper-gold deposit, Carajás Mineral Province, Brazil: Paragenesis and stable isotope constraints
The Sossego iron oxide–copper–gold deposit (245 Mt @ 1.1% Cu, 0.28 g/t Au) in the Carajás Mineral Province of Brazil consists of two major groups of orebodies (Pista–Sequeirinho–Baiano and Sossego–Curral) with distinct alteration assemblages that are separated from each other by a major high angle fault. The deposit is located along a regional WNW–ESE-striking shear zone that defines the...
Authors
Lena V.S. Monteiro, R.P. Xavier, E.R. Carvalho, M.W. Hitzman, C. Johnson, Filho Souza, I. Torresi
Geology and origin of epigenetic lode gold deposits, Tintina Gold Province, Alaska and Yukon Geology and origin of epigenetic lode gold deposits, Tintina Gold Province, Alaska and Yukon
More than 50 million ounces of lode gold resources have been defined in the previous 15 years throughout accreted terranes of interior Alaska and in adjacent continental margin rocks of Yukon. The major deposits in this so-called Tintina Gold Province formed around 105 to 90 million years ago in east-central Alaska and Yukon, and around 70 million years ago in southwestern Alaska, late...
Authors
Richard Goldfarb, Erin E. Marsh, Craig Hart, John Mair, Marti Miller, Craig Johnson
Regional Fluid Flow and Basin Modeling in Northern Alaska Regional Fluid Flow and Basin Modeling in Northern Alaska
The foothills of the Brooks Range contain an enormous accumulation of zinc (Zn) in the form of zinc sulfide and barium (Ba) in the form of barite in Carboniferous shale, chert, and mudstone. Most of the resources and reserves of Zn occur in the Red Dog deposit and others in the Red Dog district; these resources and reserves surpass those of most deposits worldwide in terms of size and...
Authors
Robert Ayuso, Robert Burruss, Julie Dumoulin, Garth Graham, Anita Harris, Craig Johnson, Karen Kelley, David Leach, Paul Lillis, Erin Marsh, Thomas Moore, Christopher Potter, John Slack
By
Ecosystems Mission Area, Energy Resources Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Geology, Energy & Minerals Science Center, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Central Energy Resources Science Center
Toxicity of cobalt-complexed cyanide to Oncorhynchus mykiss, Daphnia magna, and Ceriodaphnia dubia: Potentiation by ultraviolet radiation and attenuation by dissolved organic carbon and adaptive UV tolerance Toxicity of cobalt-complexed cyanide to Oncorhynchus mykiss, Daphnia magna, and Ceriodaphnia dubia: Potentiation by ultraviolet radiation and attenuation by dissolved organic carbon and adaptive UV tolerance
Background Cobalt cyanide complexes often result when ore is treated with cyanide solutions to extract gold and other metals. These have recently been discovered in low but significant concentrations in effluents from gold leach operations. This study was conducted to determine the potential toxicity of cobalt-cyanide complexes to freshwater organisms and the extent to which ultraviolet...
Authors
Edward Little, Robin Calfee, Peter Theodorakos, Zoe Brown, Craig Johnson
delta 15N and non-carbonate delta 13C values for two petroleum source rock reference materials and a marine sediment reference material delta 15N and non-carbonate delta 13C values for two petroleum source rock reference materials and a marine sediment reference material
Samples of United States Geological Survey (USGS) Certified Reference Materials USGS Devonian Ohio Shale (SDO-1), and USGS Eocene Green River Shale (SGR-1), and National Research Council Canada (NRCC) Certified Marine Sediment Reference Material (PACS-2), were sent for analysis to four separate analytical laboratories as blind controls for organic rich sedimentary rock samples being...
Authors
Kristin O. Dennen, Craig Johnson, Marshall Otter, Steven Silva, Gregory Wandless
Non-USGS Publications**
Riciputi, L.R., McSween, H.Y., Jr., Johnson, C.A., and Prinz, M., 1994, Minor and trace element concentrations in carbonates of carbonaceous chondrites, and implications for the compositions of coexisting fluids: Geochimica et Cosmochimica Acta, 58 (4), p. 1343–1351, https://doi.org/10.1016/0016-7037(94)90386-7.
Johnson, C.A., and Prinz, M., 1993, Carbonate compositions in CM and CI chondrites, and implications for aqueous alteration: Geochimica et Cosmochimica Acta, 57 (12), p. 2843–2852, https://doi.org/10.1016/0016-7037(93)90393-B.
Johnson, C.A., Cardellach, E., Tritlla, J., and Hanan, B.B., 1993, Origin of the Cierco Pb-Zn vein system (central Pyrenees, Spain): evidence from stable isotopes, Sr isotopes and fluid inclusions, in Fenoll Hach-Ali, P., Torrez-Ruiz, J., and Gervilla, F., eds., Current research in geology applied to ore deposits. Proceedings of the 2nd SGA Biennial Meeting, Granada, Spain, 9-11 September 1993, p. 135-138.
Johnson, C.A., and Prinz, M., 1991, Chromite and olivine in type II chondrules in carbonaceous and ordinary chondrites: implications for thermal histories and group differences: Geochimica et Cosmochimica Acta, 55 (3), p. 893–904, https://doi.org/10.1016/0016-7037(91)90349-A.
Johnson, C.A., Rye, D.M., and Skinner, B.J., 1990, Unusual oxygen isotopic compositions in and around the Sterling Hill and Franklin Furnace ore deposits, in Proceedings for conference on character and origin of the Franklin and Sterling Hill orebodies: Bethlehem, PA, Lehigh University, p. 63–76.
Johnson, C.A., Rye, D.M., and Skinner, B.J., 1990, Petrology and stable isotope geochemistry of the metamorphosed zinc-iron-manganese deposit at Sterling Hill, New Jersey: Economic Geology, 85 (6), p. 1133–1161, https://doi.org/10.2113/gsecongeo.85.6.1133.
Johnson, C.A., Prinz, M., Weisberg, M.K., Clayton, R.N., and Mayeda, T.K., 1990, Dark inclusions in Allende, Leoville and Vigarano: evidence for nebular oxidation of CV3 constituents: Geochimica et Cosmochimica Acta, 54 (3), p.819–830, https://doi.org/10.1016/0016-7037(90)90376-V.
Skinner, B.J. and Johnson, C.A., 1987, Evidence for movement of ore materials during high grade metamorphism: Ore Geology Reviews, 2 (1-3), p. 191–204, https://doi.org/10.1016/0169-1368(87)90028-X.
Johnson, C.A., Bohlen, S.R., and Essene, E.J., 1983, An evaluation of garnet-clinopyroxene geothermometry in granulites: Contributions to Mineralogy and Petrology, 84 (2-3), p. 191-198, https://doi.org/10.1007/BF00371285.
Johnson, C.A., and Essene, E. J., 1982, The formation of garnet in olivine-bearing metagabbros in the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, 81 (3), p. 240-251, https://doi.org/10.1007/BF00371301.
**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: 89
Cyanide speciation at four gold leach operations undergoing remediation Cyanide speciation at four gold leach operations undergoing remediation
Analyses have been made of 81 effluents from four gold leach operations in various stages of remediation to identify the most-persistent cyanide species. Total cyanide and weak acid-dissociable (WAD) cyanide were measured using improved methods, and metals known to form stable cyanocomplexes were also measured. Typically, total cyanide greatly exceeded WAD indicating that cyanide was...
Authors
Craig Johnson, David Grimes, Reinhard Leinz, Robert Rye
Spatial and temporal zoning of hydrothermal alteration and mineralization in the Sossego iron oxide-copper-gold deposit, Carajás Mineral Province, Brazil: Paragenesis and stable isotope constraints Spatial and temporal zoning of hydrothermal alteration and mineralization in the Sossego iron oxide-copper-gold deposit, Carajás Mineral Province, Brazil: Paragenesis and stable isotope constraints
The Sossego iron oxide–copper–gold deposit (245 Mt @ 1.1% Cu, 0.28 g/t Au) in the Carajás Mineral Province of Brazil consists of two major groups of orebodies (Pista–Sequeirinho–Baiano and Sossego–Curral) with distinct alteration assemblages that are separated from each other by a major high angle fault. The deposit is located along a regional WNW–ESE-striking shear zone that defines the...
Authors
Lena V.S. Monteiro, R.P. Xavier, E.R. Carvalho, M.W. Hitzman, C. Johnson, Filho Souza, I. Torresi
Geology and origin of epigenetic lode gold deposits, Tintina Gold Province, Alaska and Yukon Geology and origin of epigenetic lode gold deposits, Tintina Gold Province, Alaska and Yukon
More than 50 million ounces of lode gold resources have been defined in the previous 15 years throughout accreted terranes of interior Alaska and in adjacent continental margin rocks of Yukon. The major deposits in this so-called Tintina Gold Province formed around 105 to 90 million years ago in east-central Alaska and Yukon, and around 70 million years ago in southwestern Alaska, late...
Authors
Richard Goldfarb, Erin E. Marsh, Craig Hart, John Mair, Marti Miller, Craig Johnson
Regional Fluid Flow and Basin Modeling in Northern Alaska Regional Fluid Flow and Basin Modeling in Northern Alaska
The foothills of the Brooks Range contain an enormous accumulation of zinc (Zn) in the form of zinc sulfide and barium (Ba) in the form of barite in Carboniferous shale, chert, and mudstone. Most of the resources and reserves of Zn occur in the Red Dog deposit and others in the Red Dog district; these resources and reserves surpass those of most deposits worldwide in terms of size and...
Authors
Robert Ayuso, Robert Burruss, Julie Dumoulin, Garth Graham, Anita Harris, Craig Johnson, Karen Kelley, David Leach, Paul Lillis, Erin Marsh, Thomas Moore, Christopher Potter, John Slack
By
Ecosystems Mission Area, Energy Resources Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Geology, Energy & Minerals Science Center, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Central Energy Resources Science Center
Toxicity of cobalt-complexed cyanide to Oncorhynchus mykiss, Daphnia magna, and Ceriodaphnia dubia: Potentiation by ultraviolet radiation and attenuation by dissolved organic carbon and adaptive UV tolerance Toxicity of cobalt-complexed cyanide to Oncorhynchus mykiss, Daphnia magna, and Ceriodaphnia dubia: Potentiation by ultraviolet radiation and attenuation by dissolved organic carbon and adaptive UV tolerance
Background Cobalt cyanide complexes often result when ore is treated with cyanide solutions to extract gold and other metals. These have recently been discovered in low but significant concentrations in effluents from gold leach operations. This study was conducted to determine the potential toxicity of cobalt-cyanide complexes to freshwater organisms and the extent to which ultraviolet...
Authors
Edward Little, Robin Calfee, Peter Theodorakos, Zoe Brown, Craig Johnson
delta 15N and non-carbonate delta 13C values for two petroleum source rock reference materials and a marine sediment reference material delta 15N and non-carbonate delta 13C values for two petroleum source rock reference materials and a marine sediment reference material
Samples of United States Geological Survey (USGS) Certified Reference Materials USGS Devonian Ohio Shale (SDO-1), and USGS Eocene Green River Shale (SGR-1), and National Research Council Canada (NRCC) Certified Marine Sediment Reference Material (PACS-2), were sent for analysis to four separate analytical laboratories as blind controls for organic rich sedimentary rock samples being...
Authors
Kristin O. Dennen, Craig Johnson, Marshall Otter, Steven Silva, Gregory Wandless
Non-USGS Publications**
Riciputi, L.R., McSween, H.Y., Jr., Johnson, C.A., and Prinz, M., 1994, Minor and trace element concentrations in carbonates of carbonaceous chondrites, and implications for the compositions of coexisting fluids: Geochimica et Cosmochimica Acta, 58 (4), p. 1343–1351, https://doi.org/10.1016/0016-7037(94)90386-7.
Johnson, C.A., and Prinz, M., 1993, Carbonate compositions in CM and CI chondrites, and implications for aqueous alteration: Geochimica et Cosmochimica Acta, 57 (12), p. 2843–2852, https://doi.org/10.1016/0016-7037(93)90393-B.
Johnson, C.A., Cardellach, E., Tritlla, J., and Hanan, B.B., 1993, Origin of the Cierco Pb-Zn vein system (central Pyrenees, Spain): evidence from stable isotopes, Sr isotopes and fluid inclusions, in Fenoll Hach-Ali, P., Torrez-Ruiz, J., and Gervilla, F., eds., Current research in geology applied to ore deposits. Proceedings of the 2nd SGA Biennial Meeting, Granada, Spain, 9-11 September 1993, p. 135-138.
Johnson, C.A., and Prinz, M., 1991, Chromite and olivine in type II chondrules in carbonaceous and ordinary chondrites: implications for thermal histories and group differences: Geochimica et Cosmochimica Acta, 55 (3), p. 893–904, https://doi.org/10.1016/0016-7037(91)90349-A.
Johnson, C.A., Rye, D.M., and Skinner, B.J., 1990, Unusual oxygen isotopic compositions in and around the Sterling Hill and Franklin Furnace ore deposits, in Proceedings for conference on character and origin of the Franklin and Sterling Hill orebodies: Bethlehem, PA, Lehigh University, p. 63–76.
Johnson, C.A., Rye, D.M., and Skinner, B.J., 1990, Petrology and stable isotope geochemistry of the metamorphosed zinc-iron-manganese deposit at Sterling Hill, New Jersey: Economic Geology, 85 (6), p. 1133–1161, https://doi.org/10.2113/gsecongeo.85.6.1133.
Johnson, C.A., Prinz, M., Weisberg, M.K., Clayton, R.N., and Mayeda, T.K., 1990, Dark inclusions in Allende, Leoville and Vigarano: evidence for nebular oxidation of CV3 constituents: Geochimica et Cosmochimica Acta, 54 (3), p.819–830, https://doi.org/10.1016/0016-7037(90)90376-V.
Skinner, B.J. and Johnson, C.A., 1987, Evidence for movement of ore materials during high grade metamorphism: Ore Geology Reviews, 2 (1-3), p. 191–204, https://doi.org/10.1016/0169-1368(87)90028-X.
Johnson, C.A., Bohlen, S.R., and Essene, E.J., 1983, An evaluation of garnet-clinopyroxene geothermometry in granulites: Contributions to Mineralogy and Petrology, 84 (2-3), p. 191-198, https://doi.org/10.1007/BF00371285.
Johnson, C.A., and Essene, E. J., 1982, The formation of garnet in olivine-bearing metagabbros in the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, 81 (3), p. 240-251, https://doi.org/10.1007/BF00371301.
**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.