Russian Mineralogical Society
XIII All-Russian conference on thermobarogeochemistry in conjunction with IV APIFIS symposium
Fluid regime of gold-bearing rodingites formation: fluid inclusions data

RMS-DPI code:  2008-1-90-0
Scientific session:  Fluid regime of hydrothermal ore-forming systems
Author listing:  Murzin V.V., Shanina S.N., Klyukin Yu.I.
Principal author:  Murzin Valeri Vasilievich
Language:  Russian
Abstract - Summary 
(short description):
We studied gas–liquid inclusions in minerals of gold-bearing rodingite (diopside, garnet, chlorite, and calcite) from the Karabash alpine-type ultrabasic massif, Southern Ural. Thermometric and cryometric studies and gas chromatography showed that the rodingites were formed at T= 420–470°C (homogenization temperatures range of 115–325°C), P= 1-3 kbar and XCO2 = 0.001–0.02, i.e., under conditions typical for rodingites formation. The rodingite-forming fluid was extremely rich in water (XH2O = 0.935–0.983) and contained hydrogen as the major gas component (XH2 = 0.012–0.048); its composition was essentially chloride–magnesium with minor amounts of CaCl2 and FeCl2 and a low salinity of 0.5–8.3 wt % NaCl equiv. It was found that the rodingites were formed under reducing conditions (CO2/(CO2+CO+H2+CH4 <0.35).
Date of presentation:  22/09/2008
Presentation Place:  IGEM RAS, Conference Hall
RMS-DPI code:  2008-1-90-0
Proceeedings volume 
in the RMS catalogue:
Proceedings of XIII International conference on thermobarogeochemistry and IVth APIFIS symposium. Volume 2.
Pages:  76-79
File of proceedings 
 135 K
Status:  printed
Recieved:  28/03/2008
Accepted:  27/06/2008
Published on-line:  30/03/2009
Permanent address of publication:
Contact author(s):  Murzin, Valeri Vasilievich

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