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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

Variations in the fine-scale composition of a central Pacific ferromanganese crust: Paleoceanographic implications Variations in the fine-scale composition of a central Pacific ferromanganese crust: Paleoceanographic implications

A 47- to 60-mm-thick Fe-Mn crust from Horizon Guyot (water depth 1800–1780 m), central Pacific, was used to evaluate the potential of crusts as recorders of Neogene paleoceanographic and paleoclimatic conditions. The chemical composition was determined by microprobe for 16 elements from a polished thin section. Three analyses were made per millimeter and averaged to give the composition...
Authors
J.R. Hein, W.A. Bohrson, M. S. Schulz, M. Noble, D.A. Clague

Low sulfur content in submarine lavas: An unreliable indicator of subaerial eruption Low sulfur content in submarine lavas: An unreliable indicator of subaerial eruption

Low S content (
Authors
A. S. Davis, D.A. Clague, M. S. Schulz, J.R. Hein

Petrography and chemistry of hydrothermal manganese oxyhydroxides from the Mariana and Izu-Bonin Volcanic Arcs, West Pacific Petrography and chemistry of hydrothermal manganese oxyhydroxides from the Mariana and Izu-Bonin Volcanic Arcs, West Pacific

No abstract available.
Authors
Marjorie S. Schulz, James R. Hein

Age determinations and growth rates of Pacific ferromanganese deposits using strontium isotopes Age determinations and growth rates of Pacific ferromanganese deposits using strontium isotopes

87Sr86Sr ratios, trace element and REE compositions, and textural characteristics were determined for three hydrogenetic Fe-Mn crusts, one hydrothermal deposit, and two mixed hydrothermalhydrogenetic crusts from the Pacific. The Sr isotope data are compared to the Sr seawater curve for the Cenozoic to determine the ages and growth rates of the crusts. The 87Sr86Sr in the crusts does not...
Authors
B.L. Ingram, J.R. Hein, G. L. Farmer

Eocene diatom chert from Adak Island, Alaska Eocene diatom chert from Adak Island, Alaska

Bedded quartz cherts that contain recognizable diatoms are rare in the geologic record and are described here for the first time. The Eocene Andrew Lake Formation on Adak Island, Alaska consists of about 800 m of sedimentary and volcanogenic rocks. Quartz cherts containing diatoms occur in the upper part of the Andrew Lake Formation and crop out on the northern part of the island. The...
Authors
James R. Hein, Hseuh-Wen Yeh, John A. Barron

Mineralogy and geochemistry of Co-rich ferromanganese crusts and substrate rocks from Karin Ridge and Johnston Island, Farnella Cruise F7-86-HW Mineralogy and geochemistry of Co-rich ferromanganese crusts and substrate rocks from Karin Ridge and Johnston Island, Farnella Cruise F7-86-HW

No abstract available.
Authors
J.R. Hein, Herbert Kirschenbaum, W. C. Schwab, Akira Taggart Usui, K.L. Olson, L. G. Pickthorn, M. S. Schulz, C.L. Morgan

Geological, geochemical, geophysical, and oceanographic data and interpretations of seamounts and co-rich ferromanganese crusts from the Marshall Islands, KORDI-USGS R.V. Farnella cruise F10-89-CP Geological, geochemical, geophysical, and oceanographic data and interpretations of seamounts and co-rich ferromanganese crusts from the Marshall Islands, KORDI-USGS R.V. Farnella cruise F10-89-CP

No abstract available.
Authors
J.R. Hein, Jung-Keuk Kang, M. S. Schulz, Byong-Kwon Park, Herbert Kirschenbaum, Suk-Hoon Yoon, R. L. Olson, V. K. Smith, Dong-Won Park, G. O. Riddle, P. J. Quinterno, Yoon-Oh Lee, A. S. Davis, R. S. Kim, M. S. Pringle, Dong-Lim Choi, L. G. Pickthorn, S.O. Schlanger, F. K. Duennebier, D. D. Bergersen, J. M. Lincoln

Age determinations and growth rates of Pacific ferromanganese deposits using strontium isotopes Age determinations and growth rates of Pacific ferromanganese deposits using strontium isotopes

87Sr 86Sr ratios, trace element and REE compositions, and textural characteristics were determined for three hydrogenetic Fe-Mn crusts, one hydrothermal deposit, and two mixed hydrothermalhydrogenetic crusts from the Pacific. The Sr isotope data are compared to the Sr seawater curve for the Cenozoic to determine the ages and growth rates of the crusts. The 87Sr 86Sr in the crusts does...
Authors
B.L. Ingram, J.R. Hein, G. L. Farmer

Insular and submarine ferromanganese mineralization of the Tonga-Lau region Insular and submarine ferromanganese mineralization of the Tonga-Lau region

Ferromanganese oxides in the Tonga-Lau region are divided into crusts and stratabound deposits. Crusts were collected from the Tonga and Lau Ridges and have Fe/Mn ratios greater than 1, and an average Co content of 0.25%. The crusts average less than 10 mm thick with a maximum of 50 mm, and growth rates of tens of millimeters per million years. The thickest crust is probably less than a...
Authors
J.R. Hein, M. S. Schulz, Jung-Keuk Kang

Composition of Basaltic glasses dredged from seven seamounts offshore Southern California on R/V Farnella cruise F7-87-SC Composition of Basaltic glasses dredged from seven seamounts offshore Southern California on R/V Farnella cruise F7-87-SC

No abstract available.
Authors
A. S. Davis, D.A. Clague, W.B. Friesen, J.R. Hein

Geochemistry and diagenesis of Miocene lacustrine siliceous sedimentary and pyroclastic rocks, Mytilinii basin, Samos Island, Greece Geochemistry and diagenesis of Miocene lacustrine siliceous sedimentary and pyroclastic rocks, Mytilinii basin, Samos Island, Greece

A Late Miocene non-marine stratigraphic sequence composed of limestone, opal-CT-bearing limestone, porcelanite, marlstone, diatomaceous marlstone, dolomite, and tuffite crops out on eastern Samos Island. This lacustrine sequence is subdivided into the Hora Beds and the underlying Pythagorion Formation. The Hora Beds is overlain by the clastic Mytilinii series which contains Turolian...
Authors
M.G. Stamatakis, James R. Hein, A.C. Magganas

Morphology of sea-floor landslides on Horizon Guyot: application of steady-state geotechnical analysis Morphology of sea-floor landslides on Horizon Guyot: application of steady-state geotechnical analysis

Mass movement and erosion have been identified on the pelagic sediment cap of Horizon Guyot, a seamount in the Mid-Pacific Mountains. Trends in the size, shape and preservation of bedforms and sediment textural trends on the pelagic cap indicate that bottom-current-generated sediment transport direction is upslope. Slumping of the sediment cap occurred on and that the net bedload...
Authors
R. E. Kayen, W. C. Schwab, H.J. Lee, M.E. Torresan, J.R. Hein, P. J. Quinterno, L.A. Levin
By
Natural Hazards Mission Area, Landslide Hazards Program, Geologic Hazards 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

Variations in the fine-scale composition of a central Pacific ferromanganese crust: Paleoceanographic implications Variations in the fine-scale composition of a central Pacific ferromanganese crust: Paleoceanographic implications

A 47- to 60-mm-thick Fe-Mn crust from Horizon Guyot (water depth 1800–1780 m), central Pacific, was used to evaluate the potential of crusts as recorders of Neogene paleoceanographic and paleoclimatic conditions. The chemical composition was determined by microprobe for 16 elements from a polished thin section. Three analyses were made per millimeter and averaged to give the composition...
Authors
J.R. Hein, W.A. Bohrson, M. S. Schulz, M. Noble, D.A. Clague

Low sulfur content in submarine lavas: An unreliable indicator of subaerial eruption Low sulfur content in submarine lavas: An unreliable indicator of subaerial eruption

Low S content (
Authors
A. S. Davis, D.A. Clague, M. S. Schulz, J.R. Hein

Petrography and chemistry of hydrothermal manganese oxyhydroxides from the Mariana and Izu-Bonin Volcanic Arcs, West Pacific Petrography and chemistry of hydrothermal manganese oxyhydroxides from the Mariana and Izu-Bonin Volcanic Arcs, West Pacific

No abstract available.
Authors
Marjorie S. Schulz, James R. Hein

Age determinations and growth rates of Pacific ferromanganese deposits using strontium isotopes Age determinations and growth rates of Pacific ferromanganese deposits using strontium isotopes

87Sr86Sr ratios, trace element and REE compositions, and textural characteristics were determined for three hydrogenetic Fe-Mn crusts, one hydrothermal deposit, and two mixed hydrothermalhydrogenetic crusts from the Pacific. The Sr isotope data are compared to the Sr seawater curve for the Cenozoic to determine the ages and growth rates of the crusts. The 87Sr86Sr in the crusts does not...
Authors
B.L. Ingram, J.R. Hein, G. L. Farmer

Eocene diatom chert from Adak Island, Alaska Eocene diatom chert from Adak Island, Alaska

Bedded quartz cherts that contain recognizable diatoms are rare in the geologic record and are described here for the first time. The Eocene Andrew Lake Formation on Adak Island, Alaska consists of about 800 m of sedimentary and volcanogenic rocks. Quartz cherts containing diatoms occur in the upper part of the Andrew Lake Formation and crop out on the northern part of the island. The...
Authors
James R. Hein, Hseuh-Wen Yeh, John A. Barron

Mineralogy and geochemistry of Co-rich ferromanganese crusts and substrate rocks from Karin Ridge and Johnston Island, Farnella Cruise F7-86-HW Mineralogy and geochemistry of Co-rich ferromanganese crusts and substrate rocks from Karin Ridge and Johnston Island, Farnella Cruise F7-86-HW

No abstract available.
Authors
J.R. Hein, Herbert Kirschenbaum, W. C. Schwab, Akira Taggart Usui, K.L. Olson, L. G. Pickthorn, M. S. Schulz, C.L. Morgan

Geological, geochemical, geophysical, and oceanographic data and interpretations of seamounts and co-rich ferromanganese crusts from the Marshall Islands, KORDI-USGS R.V. Farnella cruise F10-89-CP Geological, geochemical, geophysical, and oceanographic data and interpretations of seamounts and co-rich ferromanganese crusts from the Marshall Islands, KORDI-USGS R.V. Farnella cruise F10-89-CP

No abstract available.
Authors
J.R. Hein, Jung-Keuk Kang, M. S. Schulz, Byong-Kwon Park, Herbert Kirschenbaum, Suk-Hoon Yoon, R. L. Olson, V. K. Smith, Dong-Won Park, G. O. Riddle, P. J. Quinterno, Yoon-Oh Lee, A. S. Davis, R. S. Kim, M. S. Pringle, Dong-Lim Choi, L. G. Pickthorn, S.O. Schlanger, F. K. Duennebier, D. D. Bergersen, J. M. Lincoln

Age determinations and growth rates of Pacific ferromanganese deposits using strontium isotopes Age determinations and growth rates of Pacific ferromanganese deposits using strontium isotopes

87Sr 86Sr ratios, trace element and REE compositions, and textural characteristics were determined for three hydrogenetic Fe-Mn crusts, one hydrothermal deposit, and two mixed hydrothermalhydrogenetic crusts from the Pacific. The Sr isotope data are compared to the Sr seawater curve for the Cenozoic to determine the ages and growth rates of the crusts. The 87Sr 86Sr in the crusts does...
Authors
B.L. Ingram, J.R. Hein, G. L. Farmer

Insular and submarine ferromanganese mineralization of the Tonga-Lau region Insular and submarine ferromanganese mineralization of the Tonga-Lau region

Ferromanganese oxides in the Tonga-Lau region are divided into crusts and stratabound deposits. Crusts were collected from the Tonga and Lau Ridges and have Fe/Mn ratios greater than 1, and an average Co content of 0.25%. The crusts average less than 10 mm thick with a maximum of 50 mm, and growth rates of tens of millimeters per million years. The thickest crust is probably less than a...
Authors
J.R. Hein, M. S. Schulz, Jung-Keuk Kang

Composition of Basaltic glasses dredged from seven seamounts offshore Southern California on R/V Farnella cruise F7-87-SC Composition of Basaltic glasses dredged from seven seamounts offshore Southern California on R/V Farnella cruise F7-87-SC

No abstract available.
Authors
A. S. Davis, D.A. Clague, W.B. Friesen, J.R. Hein

Geochemistry and diagenesis of Miocene lacustrine siliceous sedimentary and pyroclastic rocks, Mytilinii basin, Samos Island, Greece Geochemistry and diagenesis of Miocene lacustrine siliceous sedimentary and pyroclastic rocks, Mytilinii basin, Samos Island, Greece

A Late Miocene non-marine stratigraphic sequence composed of limestone, opal-CT-bearing limestone, porcelanite, marlstone, diatomaceous marlstone, dolomite, and tuffite crops out on eastern Samos Island. This lacustrine sequence is subdivided into the Hora Beds and the underlying Pythagorion Formation. The Hora Beds is overlain by the clastic Mytilinii series which contains Turolian...
Authors
M.G. Stamatakis, James R. Hein, A.C. Magganas

Morphology of sea-floor landslides on Horizon Guyot: application of steady-state geotechnical analysis Morphology of sea-floor landslides on Horizon Guyot: application of steady-state geotechnical analysis

Mass movement and erosion have been identified on the pelagic sediment cap of Horizon Guyot, a seamount in the Mid-Pacific Mountains. Trends in the size, shape and preservation of bedforms and sediment textural trends on the pelagic cap indicate that bottom-current-generated sediment transport direction is upslope. Slumping of the sediment cap occurred on and that the net bedload...
Authors
R. E. Kayen, W. C. Schwab, H.J. Lee, M.E. Torresan, J.R. Hein, P. J. Quinterno, L.A. Levin
By
Natural Hazards Mission Area, Landslide Hazards Program, Geologic Hazards Science Center
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