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

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F13%3A00000098" target="_blank" >RIV/00025798:_____/13:00000098 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The importance of black shales in the origin of the Amantaytau orogenic gold deposit in Uzbekistan: evidence from pyrite chemistry and sulfur isotope data
Original language 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.
Czech name
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Czech description
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Project
<a href="/en/project/LG13006" target="_blank" >LG13006: Representation of the Czech Republic in SGA (Society for Geology Applied to Mineral Deposits)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Mineral deposit research for high-tech world. Proceedings of the 12th Biennial SGA Meeting
ISBN
978-91-7403-207-9
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
1174-1177
Publisher name
Geological Survey of Sweden
Place of publication
Uppsala
Event location
Uppsala
Event date
Aug 12, 2013
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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