J
James R. Hein
Researcher at United States Geological Survey
Publications - 241
Citations - 11667
James R. Hein is an academic researcher from United States Geological Survey. The author has contributed to research in topics: Crust & Seamount. The author has an hindex of 56, co-authored 231 publications receiving 9943 citations. Previous affiliations of James R. Hein include Cornell University.
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Journal ArticleDOI
Deep-ocean mineral deposits as a source of critical metals for high- and green-technology applications: Comparison with land-based resources
TL;DR: In this paper, the authors compare the grades and tonnages of nodules and crusts in those two areas with the global terrestrial reserves and resources, and compare the two largest existing land-based REE mines, Bayan Obo in China and Mountain Pass in the USA.
Journal ArticleDOI
Comparison of the partitioning behaviours of yttrium, rare earth elements, and titanium between hydrogenetic marine ferromanganese crusts and seawater
TL;DR: In this article, the authors studied the distribution of rare earth elements in hydrogenetic marine ferromanganese (Fe-Mn) crusts from the Central Pacific Ocean and found that the rare earth properties of the seafloor are similar to those of the terrestrial environment.
Journal ArticleDOI
Uptake of elements from seawater by ferromanganese crusts: solid-phase associations and seawater speciation
Andrea Koschinsky,James R. Hein +1 more
TL;DR: In this paper, the authors proposed a simple sorption model related to the inorganic speciation of the elements in seawater, as has been proposed in earlier models, in order to determine the host phases of 40 elements.
Journal ArticleDOI
Discriminating between different genetic types of marine ferro-manganese crusts and nodules based on rare earth elements and yttrium
TL;DR: In this article, the rare earths and yttrium (REY) inventory of marine Fe-Mn (oxyhydr)oxide deposits is used to discriminate between different types of precipitates, regardless of their diverse mineralogical composition.
Book ChapterDOI
Deep-Ocean Ferromanganese Crusts and Nodules
James R. Hein,Andrea Koschinsky +1 more
TL;DR: A review of nodules and crusts provides a setting for a discussion on the latest (past 10 years) research related to the geochemistry of sequestration of metals from seawater.