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On the Mechanism of Transformation from Primary Ores into Oxidized Ores in Finely Disseminated Gold Deposits
Author(s) -
Xianfan LIU,
Shijun NI,
Jingfu JIN,
Qiuxia LU,
Xingchun ZHANG
Publication year - 1998
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.1755-6724.1998.tb00406.x
Subject(s) - supergene (geology) , geochemistry , geology , gold ore , leaching (pedology) , smelting , mining engineering , metallurgy , primary (astronomy) , weathering , materials science , soil science , physics , astronomy , soil water
This paper, taking the finely disseminated gold deposits in southwestern Guizhou and northwestern Guangxi as examples, discusses the difference between the occurrence of primary ores and that of oxidized ores, analyzes the occurrence mechanism in terms of crystallochemistry and geochemistry, and especially studies the chemical model for supergene leaching transformation of clay minerals in the two types of ores. This study proposes a new idea for dressing and smelting technology for primary gold ores.