Fluid inclusion and H–O-S-Pb isotope constraints on the origin of carbonate-hosted Hg-Sb mineralization at Gongguan, central China

The Gongguan deposit in southern Qinling district, central China, is characterized by a Hg and Sb metal association, with proven reserves of 7,543 t Hg and 17,100 t Sb. The Hg-Sb mineralized veins are primarily hosted by local Lower Devonian dolomite. Three primary paragenetic stages have been ident...

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Veröffentlicht in:	Mineralium deposita 2023-11, Vol.58 (8), p.1519-1536
Hauptverfasser:	Zhao, Gang, Zhai, Degao, Liu, Jiajun, Mathur, Ryan
Format:	Artikel
Sprache:	eng
Schlagworte:	Antimony Calcite Cambrian Carbon dioxide Carbonates Devonian Diagenesis Dolomite Dolostone Earth and Environmental Science Earth Sciences Fluid inclusions Geology Heavy metals Isotopes Lead isotopes Low temperature Mercury Mercury (metal) Meteoric water Mineral deposits Mineral Resources Mineralization Mineralogy Paleozoic Precambrian Pyrite Quartz Sedimentary rocks Silurian Sodium chloride Stibnite Sulfate reduction Sulfur Sulfur isotopes Sulfur sources Sulphate reduction Sulphur Zinc
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Zusammenfassung:	The Gongguan deposit in southern Qinling district, central China, is characterized by a Hg and Sb metal association, with proven reserves of 7,543 t Hg and 17,100 t Sb. The Hg-Sb mineralized veins are primarily hosted by local Lower Devonian dolomite. Three primary paragenetic stages have been identified, including (I) pyrite-dolomite-quartz, (II) stibnite-cinnabar-quartz-calcite and (III) post-ore calcite. Dominant mercury and antimony mineralization occurred in stage II. Fluid inclusion microthermometry of quartz and calcite reveal that the Hg-Sb mineralization is associated with a low temperature (142° to 240 °C) and low salinity (
ISSN:	0026-4598 1432-1866
DOI:	10.1007/s00126-023-01192-w