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Selenium Enrichment in Cambrian Stratabound Gold Deposits in the Western Qinling Mountains
Author(s) -
Jiajun Liu,
Minghua Zheng,
Jianming Liu,
Yufeng Zhou,
Xuexiang Gu,
Bin Zhang,
Li Lin,
Wenquan Lu
Publication year - 1997
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.1997.tb00381.x
Subject(s) - geology , mineralization (soil science) , geochemistry , metallogeny , gold ore , selenium , mineralogy , pyrite , chemistry , sphalerite , soil science , soil water , organic chemistry
Stratabound gold deposits in the western Qinling Mountains occur in Cambrian chert formation composed of carbonaceous chert and carbonaceous slate. The distinctive chert formation provides important grounds for the mineralization and controls on the formation of gold deposits. Study shows that Se is exceptionally higher in both host rocks and gold orebodies. It may be recovered as a valuable component in ores for total utilization, and in some localities even independent Se orebodies (which are mined exclusively for Se) may be delineated. In gold ore Se mainly occurs as independent minerals or in the isomorphous form in sulphides and there is a positive correlation between Se and Au.