Mineralogical and geochemical facets of the massive deposition of stibnite-metastibnite at a seafloor hydrothermal field (Wakamiko Crater, Kagoshima Bay, Ryukyu Volcanic Arc)

• Published in: American Mineralogist Vol. 109; no. 10; pp. 1819 - 1833
• Main Authors: Dekov, Vesselin, Furuma, Yukako, Guéguen, Bleuenn, Klose, Lukas, Yasukawa, Kazutaka, Morita, Motoaki, Asael, Dan, Yamanaka, Toshiro, Bindi, Luca, Koschinsky, Andrea, Pracejus, Bernhard, Kato, Yasuhiro
• Format: Journal Article
• Language: English
• Published: Washington Mineralogical Society of America 01.10.2024; Walter de Gruyter GmbH
• Subjects: Boulders; Cadmium; Chemical composition; Chimneys; Chlorinity; Chromium; Craters; Deposition; Detection limits; Disproportionation; Fluids; Heavy metals; Hydrothermal; Hydrothermal deposits; Hydrothermal fields; Isotope composition; Low concentrations; Low temperature; Manganese; metastibnite; Mounds; Ocean floor; Oxic conditions; Phase separation; Precipitates; Precipitation; Rapid quenching (metallurgy); Seawater; Stibnite; stibnite; metastibnite; hydrothermal alteration; seafloor; Japan; sulfate reduction; Wakamiko Crater; Sulfate reduction; Sulfates; Sulfur dioxide; Sulphate reduction; Trace elements; Wakamiko Crater

Stibnite precipitates in the form of massive boulders at two active hydrothermal mounds in the submarine Wakamiko Crater (Ryukyu Volcanic Arc) as opposed to commonly observed accessory stibnite in the seafloor hydrothermal deposits. The stibnite dimorph, metastibnite, found here for the first time o...