Chemical composition and varieties of sulfosalts from gold mineralization in the Gaching ore occurrence (Maletoyvayam ore field)

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Authors: Shapovalova, M, Tolstykh, N, Bobrova, O
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2019
• Subjects: Kamchatka
• Online Access: http://dx.doi.org/10.1088/1755-1315/319/1/012019; https://iopscience.iop.org/article/10.1088/1755-1315/319/1/012019/pdf; https://iopscience.iop.org/article/10.1088/1755-1315/319/1/012019

Abstract The Gaching ore occurrence within the Maletoyvayam ore field is located in the southwestern part of Kamchatka volcanic belt. The ore occurrence belongs to high-sulfidation epithermal type. The sulfosalts of the fahlore-group (tennantite, tetrahedrites and goldfieldite) and enargite-groups (enargite, luzonite, famatinite) found in the gold mineralization of the Gaching ore occurrence. The presence of Cu-rich and Se-bearing fahlores as well as enargite-group sulfosalts in ores indicate a high oxygen volatility at temperature less than 250º during their formation.