About: The importance of black shales in the origin of the Amantaytau orogenic gold deposit in Uzbekistan: evidence from pyrite chemistry and sulfur isotope data

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About: The importance of black shales in the origin of the Amantaytau orogenic gold deposit in Uzbekistan: evidence from pyrite chemistry and sulfur isotope data Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The local host rock, Late Ordovician – Early Silurian carbonaceous shales, have likely been an important source of Au, As, Ni, and S in the formation of the shear zone-hosted Amantaytau orogenic gold deposit. Syn-depositional pyrite in these shales contain, elevated Au, As, and Ni concentrations of, on average, 0.34, 1658, and 1971 ppm, respectively. The 34S values for pyrite (–0.13 to +7.30 promile CDT) from barren and mineralized samples are consistent with marine sulfate being the principal source of the ore sulfur. Assuming a formation temperature of between 300 and 400 oC for the main stage of mineralization, as indicated by the alteration mineral assemblage, the calculated δ18Ofluid is between 9.5 and 13.4 promile V-SMOW, which points at a metamorphic origin for the ore fluid. The local host rock, Late Ordovician – Early Silurian carbonaceous shales, have likely been an important source of Au, As, Ni, and S in the formation of the shear zone-hosted Amantaytau orogenic gold deposit. Syn-depositional pyrite in these shales contain, elevated Au, As, and Ni concentrations of, on average, 0.34, 1658, and 1971 ppm, respectively. The 34S values for pyrite (–0.13 to +7.30 promile CDT) from barren and mineralized samples are consistent with marine sulfate being the principal source of the ore sulfur. Assuming a formation temperature of between 300 and 400 oC for the main stage of mineralization, as indicated by the alteration mineral assemblage, the calculated δ18Ofluid is between 9.5 and 13.4 promile V-SMOW, which points at a metamorphic origin for the ore fluid. (en)
Title	The importance of black shales in the origin of the Amantaytau orogenic gold deposit in Uzbekistan: evidence from pyrite chemistry and sulfur isotope data The importance of black shales in the origin of the Amantaytau orogenic gold deposit in Uzbekistan: evidence from pyrite chemistry and sulfur isotope data (en)
skos:prefLabel	The importance of black shales in the origin of the Amantaytau orogenic gold deposit in Uzbekistan: evidence from pyrite chemistry and sulfur isotope data The importance of black shales in the origin of the Amantaytau orogenic gold deposit in Uzbekistan: evidence from pyrite chemistry and sulfur isotope data (en)
skos:notation	RIV/00025798:_____/13:00000098!RIV14-MSM-00025798
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(LG13006)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Vymazalová, Anna Pašava, Jan Dobeš, Petr
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Česká geologická služba
http://linked.open...dnocenehoVysledku	79225
http://linked.open...ai/riv/idVysledku	RIV/00025798:_____/13:00000098
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Amantaytau, black shale, orogenic gold, sedimentary Au source, sulfur isotopes, pyrite chemistry (en)
http://linked.open.../riv/klicoveSlovo	Amantaytau black shale orogenic gold pyrite chemistry sedimentary Au source sulfur isotopes
http://linked.open...ontrolniKodProRIV	[A1E846AFD537]
http://linked.open...v/mistoKonaniAkce	Uppsala
http://linked.open...i/riv/mistoVydani	Uppsala
http://linked.open...i/riv/nazevZdroje	Mineral deposit research for high-tech world. Proceedings of the 12th Biennial SGA Meeting
http://linked.open...in/vavai/riv/obor	DB
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Representation of the Czech Republic in SGA (Society for Geology Applied to Mineral Deposits)
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Pašava, Jan Vymazalová, Anna Dobeš, Petr Frimmel, Hartwig Jukov, Alexander Koneev, Rustam
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2013-08-12 (xsd:date)
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Geological Survey of Sweden
https://schema.org/isbn	978-91-7403-207-9

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