Fahlore and Sphalerite from the Darasun Gold Deposit in the Eastern Transbaikal Region, Russia: II. Fe and Zn Partitioning, Fluid Inclusions, and Formation Conditions
| Autor: | V. Yu. Prokofiev, N. S. Bortnikov, O. V. Vikent’eva, S. E. Borisovsky, N. G. Lyubimtseva |
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| Rok vydání: | 2018 |
| Předmět: |
020209 energy
Mineralogy chemistry.chemical_element Geology Gold deposit 02 engineering and technology engineering.material 010502 geochemistry & geophysics 01 natural sciences Sulfur Sphalerite chemistry Geochemistry and Petrology 0202 electrical engineering electronic engineering information engineering engineering Economic Geology Fluid inclusions Fugacity Pyrite Inclusion (mineral) 0105 earth and related environmental sciences Bar (unit) |
| Zdroj: | Geology of Ore Deposits. 60:220-240 |
| ISSN: | 1555-6476 1075-7015 |
| DOI: | 10.1134/s1075701518030054 |
| Popis: | The partitioning of Fe and Zn between coexisting fahlore and sphalerite and fluid inclusions in sphalerite from the Darasun gold deposit have been studied. These data were used to estimate the formation temperature of the minerals by the sphalerite–fahlore geothermometer. The calculated crystallization temperature of 175–355°С is close to the homogenization temperature of fluid inclusions in sphalerite of 225–385°С.The estimated pressure for fluid inclusion trapping ranged from 340 to 1420 bar. The sulfur fugacity obtained from the FeS content in sphalerite associated with pyrite and the calculated temperature ranges from 10–5.5 to 10–11 bar. |
| Databáze: | OpenAIRE |
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