Marine mineral resources The Global Rare Element Endowment of Seafloor Massive Sulfide Deposits.

Monecke, Thomas, Petersen, Sven , Hannington, Mark D. and Grant, Hannah (2015) Marine mineral resources The Global Rare Element Endowment of Seafloor Massive Sulfide Deposits. Open Access [Paper] In: 13. Biennial SGA Meeting. , 24.-27.08.2015, Nancy, France . 13th SGA Biennial Meeting 2015. Proceedings, Volume 3. ; pp. 1261-1263 .

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Abstract

Over the past three decades, a large number of seafloor hydrothermal vent sites and associated sulfide deposits have been discovered in the worlds' oceans. Geochemical analysis of samples collected from vent sites worldwide suggests that seafloor sulfide deposits may contain significant base and precious metal concentrations. The present study provides the first estimate of the global rare metal endowment of these deposits. It is shown that seafloor sulfide accumulations can contain elevated concentrations of the rare elements Bi, Cd, Ga, Ge, Hg, In, Mo, Sb, Se, Te, and Tl. Although these polymetallic deposits may represent a significant repository for some of these elements, the total endowment is regarded to be limited when compared to land-based ore deposits. Potential future deep-sea mining will not likely be a significant source of these metals.

Document Type: Conference or Workshop Item (Paper)
Keywords: Rare metals, seafloor massive sulfides, deep-sea mining
Research affiliation: OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-MUHS > Marine Mineralische Rohstoffe
OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-MUHS
Date Deposited: 09 Sep 2015 07:16
Last Modified: 05 Dec 2016 14:49
URI: http://oceanrep.geomar.de/id/eprint/29553

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