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Conferences & Meetings XIII All-Russian conference on thermobarogeochemistry in conjunction with IV APIFIS symposium
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Formation conditions of epithermal ores of the Bereznyakovskoe Au-Ag-Te-Se deposit (South Urals)

RMS-DPI code:  2008-1-97-0
Scientific session:  Fluid regime of hydrothermal ore-forming systems
Author listing:  Plotinskaya O.Yu., Groznova E.O.
Principal author:  Plotinskaya Olga Yurievna
Language:  Russian
Abstract - Summary 
(short description):
The Bereznyakovskoe epithermal gold deposit is situated at the South Urals within the Birgildinsk-Tominsk ore area. The mineralization is hosted by D3-C1 tuffs and subvolcanic bodies of dacite and andesite composition as well as S1-2 limestones. Three stages of hypogene mineralization were identified: pyrite, polymetallic (with enargite, fahlore-telluride, and gold-telluride substages), and galena-sphalerite ones. The post-ore mineralization includes veinlets of quartz and carbonate. Fluid inclusion study supported by mineral geothermometry evidence early pyrite stage formed at 320-380, the polymetallic one from 280-300 to 170 and P 0,4-0,2 kbar, galena-sphalerite 220-185oC. The fluids were of moderate salinity 49 wt.%-eq. NaCl and evolved from NaCl dominant to ones enriched by Mg and Fe.
 
Date of presentation:  22/09/2008
 
RMS-DPI code:  2008-1-97-0
Proceeedings volume 
in the RMS catalogue:
 
Proceedings of XIII International conference on thermobarogeochemistry and IVth APIFIS symposium. Volume 2.
Pages:  101-103
File of proceedings 
(PDF): 
 124 K
Status:  printed
Recieved:  27/04/2008
Accepted:  27/06/2008
Published on-line:  20/02/2009
Permanent address of publication:  http://www.minsoc.ru/2008-1-97-0/
Contact author(s):  Plotinskaya, Olga Yurievna
 

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