Russian Mineralogical Society
XIII All-Russian conference on thermobarogeochemistry in conjunction with IV APIFIS symposium
Physical-chemical conditions of the Asacha gold deposit formation (Kamchatka)

RMS-DPI code:  2008-1-68-0
Scientific session:  Fluid regime of hydrothermal ore-forming systems
Author listing:  Borovikov A.A., Borisenko A.S., Lapuhov A.A.
Principal author:  Borovikov Andrey Alexandrovich
Language:  Russian
Abstract - Summary 
(short description):
Fluid inclusion studies of quartz from quartz-Fsp (orthoclase, microcline) and quartz ore veins of the Asacha gold deposits have been carried out using thermometry, cryometry, gas chromatography, Raman spectroscopy and LA-ICP-MS methods. Ore veins of the Asacha deposit formed at the temperature and pressure decrease of hydrothermal fluids. The main factors of ore deposition: 1) alteration of aggregate state of the fluid, boiling, degassing and change of concentration and acidity; 2) oxidation of fluid in the ore deposition zone; 3) temperature decrease. The most part of gold was deposited at the boiling of ore-forming fluids that is a characteristic feature of volcanogenous hydrothermal deposits including Hishikari Au-Ag deposit (Japan).

Fluid inclusions, gold deposits, volcanic ore formation
 
Date of presentation:  22/09/2008
 
RMS-DPI code:  2008-1-68-0
Proceeedings volume 
in the RMS catalogue:
 
Proceedings of XIII International conference on thermobarogeochemistry and IVth APIFIS symposium. Volume 2.
Pages:  13-15
File of proceedings 
(PDF): 
 94 K
Status:  printed
Revised:  25/05/2008
Accepted:  28/06/2008
Published on-line:  18/02/2009
Permanent address of publication:  http://www.minsoc.ru/2008-1-68-0/
Contact author(s):  Borovikov, Andrey Alexandrovich

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