James Hein
zation
Geologist Emeritus with the USGS Pacific Coastal and Marine Science Center
Science and Products
Critical metals in manganese nodules from the Cook Islands EEZ, abundances and distributions
Ocean minerals
Layered hydrothermal barite-sulfide mound field, East Diamante Caldera, Mariana volcanic arc
Energy and Minerals Science at the U.S. Geological Survey
Deep-ocean ferromanganese crusts and nodules
Sand sources and transport pathways for the San Francisco Bay coastal system, based on X-ray diffraction mineralogy
A Sr-Nd isotopic study of sand-sized sediment provenance and transport for the San Francisco Bay coastal system
Integration of bed characteristics, geochemical tracers, current measurements, and numerical modeling for assessing the provenance of beach sand in the San Francisco Bay Coastal System
Over 150 million m3 of sand-sized sediment has disappeared from the central region of the San Francisco Bay Coastal System during the last half century. This enormous loss may reflect numerous anthropogenic influences, such as watershed damming, bay-fill development, aggregate mining, and dredging. The reduction in Bay sediment also appears to be linked to a reduction in sediment supply and recent
U.S. Geological Survey Energy and Minerals science strategy: A resource lifecycle approach
Deep-ocean mineral deposits as a source of critical metals for high- and green-technology applications: Comparison with land-based deposits
U.S. Geological Survey energy and minerals science strategy
Science and Products
Critical metals in manganese nodules from the Cook Islands EEZ, abundances and distributions
Ocean minerals
Layered hydrothermal barite-sulfide mound field, East Diamante Caldera, Mariana volcanic arc
Energy and Minerals Science at the U.S. Geological Survey
Deep-ocean ferromanganese crusts and nodules
Sand sources and transport pathways for the San Francisco Bay coastal system, based on X-ray diffraction mineralogy
A Sr-Nd isotopic study of sand-sized sediment provenance and transport for the San Francisco Bay coastal system
Integration of bed characteristics, geochemical tracers, current measurements, and numerical modeling for assessing the provenance of beach sand in the San Francisco Bay Coastal System
Over 150 million m3 of sand-sized sediment has disappeared from the central region of the San Francisco Bay Coastal System during the last half century. This enormous loss may reflect numerous anthropogenic influences, such as watershed damming, bay-fill development, aggregate mining, and dredging. The reduction in Bay sediment also appears to be linked to a reduction in sediment supply and recent