Coexisting Tetrahedrite–(Zn) and Sphalerite at the Teremki Gold-Ore Deposit (East Transbaikalia): Chemical Composition and Formation Conditions

Autor:	N. S. Bortnikov, V. Yu. Prokof’ev, N. G. Lyubimtseva
Rok vydání:	2021
Předmět:	Precipitation (chemistry) Tetrahedrite Analytical chemistry chemistry.chemical_element Geology engineering.material Sulfur Sphalerite chemistry Geochemistry and Petrology engineering Economic Geology Fugacity Negative correlation Gold ore Chemical composition
Zdroj:	Geology of Ore Deposits. 63:454-464
ISSN:	1555-6476 1075-7015
DOI:	10.1134/s1075701521050032
Popis:	Abstract Paragenetic associations of tetrahedrite-(Zn) and sphalerite are distinguished in the Teremki gold-ore deposit. The chemical composition of coexisting minerals of this association is determined. The Sb/(Sb + As) and Fe/(Fe + Zn) ratios in tetrahedrite-(Zn) vary from 0.66 to 0.97 and from 0.28 to 0.40, respectively. A negative correlation was established between Sb/(Sb + As) and Fe/(Fe + Zn) ratios. Contents of Fe in sphalerite change from 0.88 to 1.43 wt % (1.5–2.5 mol % FeS). Temperature and sulfur fugacity when precipitation of tetrahedrite-(Zn)–paragenesis were estimated: they range from 130 to 280°C and from 10–13.2 to 10–8.1 bars, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1ae3a28d2344784f6c3d2f25e5dc9c54 https://doi.org/10.1134/s1075701521050032 Zobrazit plný text záznamu Full text from SpringerLink