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James Hein

zation

Geologist Emeritus with the USGS Pacific Coastal and Marine Science Center

Science and Products

Collage of black nodules or rocks of varying sizes and shapes, each 1-7 inches wide, broken in half to show their cores.

Global Seabed Mineral Resources

The Global Marine Mineral Resources project studies deep ocean minerals that occur within the U.S. Exclusive Economic Zone and areas beyond national jurisdictions. Our research concerns the setting, genesis, and metal enrichment processes of mineral occurrences, the relationship between marine minerals and deep-sea biota, and the potential geochemical footprint of any seafloor mining. We aim to...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Deep Sea Exploration, Mapping and Characterization
Global Seabed Mineral Resources

Global Seabed Mineral Resources

The Global Marine Mineral Resources project studies deep ocean minerals that occur within the U.S. Exclusive Economic Zone and areas beyond national jurisdictions. Our research concerns the setting, genesis, and metal enrichment processes of mineral occurrences, the relationship between marine minerals and deep-sea biota, and the potential geochemical footprint of any seafloor mining. We aim to...
Learn More

Geochemistry and x-ray diffraction data for hydrothermal manganese oxide rocks from the Samoa hotspot region in the South Pacific Ocean collected during research expedition KM0506 Geochemistry and x-ray diffraction data for hydrothermal manganese oxide rocks from the Samoa hotspot region in the South Pacific Ocean collected during research expedition KM0506

Hydrothermal manganese oxide rocks were collected via dredge from the Tulaga Seamount, the flank of Ofu Island, and from Soso seamount in the Samoa hotspot region offshore American Samoa during the KM0506 cruise aboard the R/V Kilo Moana in April of 2005. Rocks were subsampled at USGS and analyzed for mineralogy by x-ray diffraction as well as sent to SGS laboratories, Canada for major...
By
Pacific Coastal and Marine Science Center

Global ferromanganese crust and abyssal ferromanganese nodule prospective occurrence regions Global ferromanganese crust and abyssal ferromanganese nodule prospective occurrence regions

This data release is a polygon shapefile representing prospective occurrence regions of ferromanganese crusts and abyssal ferromanganese nodules on the seafloor throughout the global oceans. Polygons represent areas where oceanographic criteria, such as low sedimentation rate and moderate primary productivity, overlap with geologic criteria, including regions with appropriate seafloor...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Geochemistry of ferromanganese crusts, nodules, and hydrothermally altered rocks from the Arctic Ocean Geochemistry of ferromanganese crusts, nodules, and hydrothermally altered rocks from the Arctic Ocean

Ferromanganese crusts, nodules, and hydrothermally altered rocks were collected via dredge within the Amerasia Basin in the Arctic Ocean during USCGC icebreaker Healy cruises HLY0805, HLY0905, and HLY1202 in 2008, 2009, and 2012 respectively. Dredged samples were donated and sent to USGS for subsampling and major and trace element geochemical analyses. Major and trace element data as...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Measurements of zinc, oxygen, and pH, from sphalerite and ZnS oxidation in seawater Measurements of zinc, oxygen, and pH, from sphalerite and ZnS oxidation in seawater

This data release presents the concentration of zinc, oxygen, pH, temperature, and the time point at which measurements were taken for experimental oxidation work regarding zinc and copper sulfide minerals. These data accompany the following publication: Gartman, A., Whisman, S.P., and Hein, J.R., 2020, Interactive oxidation of sphalerite and covellite in seawater: implications for...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Sorbed-water (H2O-) corrected chemistry for ferromanganese crust samples from the western equatorial Pacific Ocean Sorbed-water (H2O-) corrected chemistry for ferromanganese crust samples from the western equatorial Pacific Ocean

Ferromanganese crust samples were collected via dredge during four oceanographic research cruises to the western equatorial Pacific Ocean. The location (latitude, longitude, depth) and concentrations of 27 major and trace elements in the most recent growth layers of ferromanganese crusts from 57 dredge sites are presented here, as well as select seawater chemistry at each location. These...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
No results found.
Filter Total Items: 168

Comment and reply on "Bacterially mediated diagenetic origin for chert-hosted manganese deposits in the Franciscan Complex, California Coast Ranges" Comment and reply on "Bacterially mediated diagenetic origin for chert-hosted manganese deposits in the Franciscan Complex, California Coast Ranges"

No abstract available.
Authors
Loren A. Raymond, James R. Hein, Randolph A. Koski
By
Geology, Minerals, Energy, and Geophysics Science Center, Pacific Coastal and Marine Science Center

Sr and Nd isotopic variations in ferromanganese crusts from the Central Pacific: Implications for age and source provenance Sr and Nd isotopic variations in ferromanganese crusts from the Central Pacific: Implications for age and source provenance

Isotopic analyses of two hydrogenetic ferromanganese (Fe-Mn) crusts from volcanic edifices in the central Pacific Ocean reveal systematic variations in 87Sr86Sr and 143Nd144Nd, with both ratios decreasing as a function of depth into the Fe-Mn crusts. Leaching experiments suggest that Sr in the crusts is contained in at least two discrete sites. A loosely bound Sr, dominated by modern...
Authors
K. Futa, Z. E. Peterman, J.R. Hein

Maps showing the Seabeam bathymetry and sedimentologic and biologic sample locations on Horizon Guyot, Mid-Pacific Mountains and a summary of existing data Maps showing the Seabeam bathymetry and sedimentologic and biologic sample locations on Horizon Guyot, Mid-Pacific Mountains and a summary of existing data

Horizon Guyot (Fig. 1) is a 300-km-long, 75-km-wide volcanic ridge with a relatively flat summit that is diagnostic of guyots (Hess, 1946). The U. S. Geological Survey (USGS) began a study of Horizon Guyot in 1983 as part of a program on the origin, distribution, and composition of ferromanganese-oxide precipitates that encrust the hard substrate of sea floor edifices, such as seamounts...
Authors
W. C. Schwab, J.R. Hein, K.L. Smith, C. P. de Moustier, L.A. Levin, Amatzia Genin, W.W. Wakefield, R.J. Baldwin

Description; mineralogical, chemical, and isotopic compositions; petrography; diagenesis; and uranium-series ages of drill cores from the Lagoon of Aitutaki, Cook Islands Description; mineralogical, chemical, and isotopic compositions; petrography; diagenesis; and uranium-series ages of drill cores from the Lagoon of Aitutaki, Cook Islands

No abstract available.
Authors
J.R. Hein, B. M. Richmond, S.C. Gray, Ruth Hausmann, M.W. Colgan, Dallilah El Sabbagh, L.M. Gein

Cobalt- and platinum-rich ferromanganese crusts and associated substrate rocks from the Marshall Islands Cobalt- and platinum-rich ferromanganese crusts and associated substrate rocks from the Marshall Islands

Ferromanganese crusts cover most hard substrates on seafloor edifices in the central Pacific basin. Crust samples and their associated substrates from seven volcanic edifices of Cretaceous age along the Ratak chain of the Marshall Islands are discussed. The two most abundant substrate lithologies recovered were limestone, dominantly fore-reef slope deposits, and volcanic breccia composed...
Authors
J.R. Hein, W. C. Schwab, A. Davis

Submarine ferromanganese deposits from the Mariana and Volcano volcanic arcs, West Pacific Submarine ferromanganese deposits from the Mariana and Volcano volcanic arcs, West Pacific

No abstract available.
Authors
J.R. Hein, C.L. Fleishman, L.A. Morgenson, S.H. Bloomer, R. J. Stern

Comparison of multiple-year analyses of clay mineralogy of the Copper River system and the Gulf of Alaska Comparison of multiple-year analyses of clay mineralogy of the Copper River system and the Gulf of Alaska

No abstract available.
Authors
Gretchen Luepke, B. F. Molnia, James R. Hein

Farnella Cruise F7-86-HW, cobalt-rich ferromanganese crust data report for Karin Ridge and Johnston Island, Central Pacific Farnella Cruise F7-86-HW, cobalt-rich ferromanganese crust data report for Karin Ridge and Johnston Island, Central Pacific

No abstract available.
Authors
J.R. Hein, W. C. Schwab, D.G. Foot, Yoshio Masuda, Akira Usui, A. S. Davis, C.L. Fleishman, D.L. Barna, L. G. Pickthorn, D.A. Larson, Peter Ruzzi, L.M. Benninger, L.M. Gein

Cobalt-rich ferromanganese crusts from the Central Pacific Cobalt-rich ferromanganese crusts from the Central Pacific

Ferromanganese crusts coat most hard substrates on seamounts, ridges, and plateaus in the centralPacific basin. Crusts from less than 2500 m water depth are rich in Mn, Co, Ni, Pb, and Pt. Samples we collected from the EEl of the Hawaiian, Johnston, Palmyra, and Marshall Islands are discussed. Necker Ridge in the Hawaiian EEl has the greatest average crust thickness of 4 em. The dominant...
Authors
James R. Hein, Frank T. Manheim, William C. Schwab
By
Woods Hole Coastal and Marine Science Center

Ferromanganese crusts Ferromanganese crusts

No abstract available.
Authors
Frank T. Manheim, James R. Hein
By
Woods Hole Coastal and Marine Science Center, Pacific Coastal and Marine Science Center

Geological and geochemical data for seamounts and associated ferromanganese crusts in the Ratak Chain, Marshall Islands Geological and geochemical data for seamounts and associated ferromanganese crusts in the Ratak Chain, Marshall Islands

In 1984, the U.S. Geological Survey (USGS) conducted a reconnaissance cruise L9-84-CP aboard the R/V S.P. LEE along the northern Ratak Ridge, Marshall Islands (Fig. 1). Preliminary geochemical results from the cruise show that ferromanganese crusts (Mn crusts) on the submarine slopes of seamounts, and islands may have potential for commercial exploitation (Schwab and others, 1985). In...
Authors
W. C. Schwab, J.R. Hein, A. S. Davis, L.A. Morgenson, C.L. Daniel, J.A. Haggerty

Stable-isotope study of volcanogenic- and sedimentary-manganese deposits Stable-isotope study of volcanogenic- and sedimentary-manganese deposits

No abstract available.
Authors
Hsueh-Wen Yeh, J.R. Hein, R.A. Koski

Science and Products

Collage of black nodules or rocks of varying sizes and shapes, each 1-7 inches wide, broken in half to show their cores.

Global Seabed Mineral Resources

The Global Marine Mineral Resources project studies deep ocean minerals that occur within the U.S. Exclusive Economic Zone and areas beyond national jurisdictions. Our research concerns the setting, genesis, and metal enrichment processes of mineral occurrences, the relationship between marine minerals and deep-sea biota, and the potential geochemical footprint of any seafloor mining. We aim to...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Deep Sea Exploration, Mapping and Characterization
Global Seabed Mineral Resources

Global Seabed Mineral Resources

The Global Marine Mineral Resources project studies deep ocean minerals that occur within the U.S. Exclusive Economic Zone and areas beyond national jurisdictions. Our research concerns the setting, genesis, and metal enrichment processes of mineral occurrences, the relationship between marine minerals and deep-sea biota, and the potential geochemical footprint of any seafloor mining. We aim to...
Learn More

Geochemistry and x-ray diffraction data for hydrothermal manganese oxide rocks from the Samoa hotspot region in the South Pacific Ocean collected during research expedition KM0506 Geochemistry and x-ray diffraction data for hydrothermal manganese oxide rocks from the Samoa hotspot region in the South Pacific Ocean collected during research expedition KM0506

Hydrothermal manganese oxide rocks were collected via dredge from the Tulaga Seamount, the flank of Ofu Island, and from Soso seamount in the Samoa hotspot region offshore American Samoa during the KM0506 cruise aboard the R/V Kilo Moana in April of 2005. Rocks were subsampled at USGS and analyzed for mineralogy by x-ray diffraction as well as sent to SGS laboratories, Canada for major...
By
Pacific Coastal and Marine Science Center

Global ferromanganese crust and abyssal ferromanganese nodule prospective occurrence regions Global ferromanganese crust and abyssal ferromanganese nodule prospective occurrence regions

This data release is a polygon shapefile representing prospective occurrence regions of ferromanganese crusts and abyssal ferromanganese nodules on the seafloor throughout the global oceans. Polygons represent areas where oceanographic criteria, such as low sedimentation rate and moderate primary productivity, overlap with geologic criteria, including regions with appropriate seafloor...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Geochemistry of ferromanganese crusts, nodules, and hydrothermally altered rocks from the Arctic Ocean Geochemistry of ferromanganese crusts, nodules, and hydrothermally altered rocks from the Arctic Ocean

Ferromanganese crusts, nodules, and hydrothermally altered rocks were collected via dredge within the Amerasia Basin in the Arctic Ocean during USCGC icebreaker Healy cruises HLY0805, HLY0905, and HLY1202 in 2008, 2009, and 2012 respectively. Dredged samples were donated and sent to USGS for subsampling and major and trace element geochemical analyses. Major and trace element data as...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Measurements of zinc, oxygen, and pH, from sphalerite and ZnS oxidation in seawater Measurements of zinc, oxygen, and pH, from sphalerite and ZnS oxidation in seawater

This data release presents the concentration of zinc, oxygen, pH, temperature, and the time point at which measurements were taken for experimental oxidation work regarding zinc and copper sulfide minerals. These data accompany the following publication: Gartman, A., Whisman, S.P., and Hein, J.R., 2020, Interactive oxidation of sphalerite and covellite in seawater: implications for...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Sorbed-water (H2O-) corrected chemistry for ferromanganese crust samples from the western equatorial Pacific Ocean Sorbed-water (H2O-) corrected chemistry for ferromanganese crust samples from the western equatorial Pacific Ocean

Ferromanganese crust samples were collected via dredge during four oceanographic research cruises to the western equatorial Pacific Ocean. The location (latitude, longitude, depth) and concentrations of 27 major and trace elements in the most recent growth layers of ferromanganese crusts from 57 dredge sites are presented here, as well as select seawater chemistry at each location. These...
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center
No results found.
Filter Total Items: 168

Comment and reply on "Bacterially mediated diagenetic origin for chert-hosted manganese deposits in the Franciscan Complex, California Coast Ranges" Comment and reply on "Bacterially mediated diagenetic origin for chert-hosted manganese deposits in the Franciscan Complex, California Coast Ranges"

No abstract available.
Authors
Loren A. Raymond, James R. Hein, Randolph A. Koski
By
Geology, Minerals, Energy, and Geophysics Science Center, Pacific Coastal and Marine Science Center

Sr and Nd isotopic variations in ferromanganese crusts from the Central Pacific: Implications for age and source provenance Sr and Nd isotopic variations in ferromanganese crusts from the Central Pacific: Implications for age and source provenance

Isotopic analyses of two hydrogenetic ferromanganese (Fe-Mn) crusts from volcanic edifices in the central Pacific Ocean reveal systematic variations in 87Sr86Sr and 143Nd144Nd, with both ratios decreasing as a function of depth into the Fe-Mn crusts. Leaching experiments suggest that Sr in the crusts is contained in at least two discrete sites. A loosely bound Sr, dominated by modern...
Authors
K. Futa, Z. E. Peterman, J.R. Hein

Maps showing the Seabeam bathymetry and sedimentologic and biologic sample locations on Horizon Guyot, Mid-Pacific Mountains and a summary of existing data Maps showing the Seabeam bathymetry and sedimentologic and biologic sample locations on Horizon Guyot, Mid-Pacific Mountains and a summary of existing data

Horizon Guyot (Fig. 1) is a 300-km-long, 75-km-wide volcanic ridge with a relatively flat summit that is diagnostic of guyots (Hess, 1946). The U. S. Geological Survey (USGS) began a study of Horizon Guyot in 1983 as part of a program on the origin, distribution, and composition of ferromanganese-oxide precipitates that encrust the hard substrate of sea floor edifices, such as seamounts...
Authors
W. C. Schwab, J.R. Hein, K.L. Smith, C. P. de Moustier, L.A. Levin, Amatzia Genin, W.W. Wakefield, R.J. Baldwin

Description; mineralogical, chemical, and isotopic compositions; petrography; diagenesis; and uranium-series ages of drill cores from the Lagoon of Aitutaki, Cook Islands Description; mineralogical, chemical, and isotopic compositions; petrography; diagenesis; and uranium-series ages of drill cores from the Lagoon of Aitutaki, Cook Islands

No abstract available.
Authors
J.R. Hein, B. M. Richmond, S.C. Gray, Ruth Hausmann, M.W. Colgan, Dallilah El Sabbagh, L.M. Gein

Cobalt- and platinum-rich ferromanganese crusts and associated substrate rocks from the Marshall Islands Cobalt- and platinum-rich ferromanganese crusts and associated substrate rocks from the Marshall Islands

Ferromanganese crusts cover most hard substrates on seafloor edifices in the central Pacific basin. Crust samples and their associated substrates from seven volcanic edifices of Cretaceous age along the Ratak chain of the Marshall Islands are discussed. The two most abundant substrate lithologies recovered were limestone, dominantly fore-reef slope deposits, and volcanic breccia composed...
Authors
J.R. Hein, W. C. Schwab, A. Davis

Submarine ferromanganese deposits from the Mariana and Volcano volcanic arcs, West Pacific Submarine ferromanganese deposits from the Mariana and Volcano volcanic arcs, West Pacific

No abstract available.
Authors
J.R. Hein, C.L. Fleishman, L.A. Morgenson, S.H. Bloomer, R. J. Stern

Comparison of multiple-year analyses of clay mineralogy of the Copper River system and the Gulf of Alaska Comparison of multiple-year analyses of clay mineralogy of the Copper River system and the Gulf of Alaska

No abstract available.
Authors
Gretchen Luepke, B. F. Molnia, James R. Hein

Farnella Cruise F7-86-HW, cobalt-rich ferromanganese crust data report for Karin Ridge and Johnston Island, Central Pacific Farnella Cruise F7-86-HW, cobalt-rich ferromanganese crust data report for Karin Ridge and Johnston Island, Central Pacific

No abstract available.
Authors
J.R. Hein, W. C. Schwab, D.G. Foot, Yoshio Masuda, Akira Usui, A. S. Davis, C.L. Fleishman, D.L. Barna, L. G. Pickthorn, D.A. Larson, Peter Ruzzi, L.M. Benninger, L.M. Gein

Cobalt-rich ferromanganese crusts from the Central Pacific Cobalt-rich ferromanganese crusts from the Central Pacific

Ferromanganese crusts coat most hard substrates on seamounts, ridges, and plateaus in the centralPacific basin. Crusts from less than 2500 m water depth are rich in Mn, Co, Ni, Pb, and Pt. Samples we collected from the EEl of the Hawaiian, Johnston, Palmyra, and Marshall Islands are discussed. Necker Ridge in the Hawaiian EEl has the greatest average crust thickness of 4 em. The dominant...
Authors
James R. Hein, Frank T. Manheim, William C. Schwab
By
Woods Hole Coastal and Marine Science Center

Ferromanganese crusts Ferromanganese crusts

No abstract available.
Authors
Frank T. Manheim, James R. Hein
By
Woods Hole Coastal and Marine Science Center, Pacific Coastal and Marine Science Center

Geological and geochemical data for seamounts and associated ferromanganese crusts in the Ratak Chain, Marshall Islands Geological and geochemical data for seamounts and associated ferromanganese crusts in the Ratak Chain, Marshall Islands

In 1984, the U.S. Geological Survey (USGS) conducted a reconnaissance cruise L9-84-CP aboard the R/V S.P. LEE along the northern Ratak Ridge, Marshall Islands (Fig. 1). Preliminary geochemical results from the cruise show that ferromanganese crusts (Mn crusts) on the submarine slopes of seamounts, and islands may have potential for commercial exploitation (Schwab and others, 1985). In...
Authors
W. C. Schwab, J.R. Hein, A. S. Davis, L.A. Morgenson, C.L. Daniel, J.A. Haggerty

Stable-isotope study of volcanogenic- and sedimentary-manganese deposits Stable-isotope study of volcanogenic- and sedimentary-manganese deposits

No abstract available.
Authors
Hsueh-Wen Yeh, J.R. Hein, R.A. Koski
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