Abstract
Two types of gold ores, siliceous mylonite and quartz vein, formed at the first and second stages of mineralization respectively, can be clearly recognized in the shear zone-hosted gold deposit at Jinshan, Jiangxi. Similarity in REE and trace elements between the siliceous mylonite and the country rocks indicates that the ore metals were supplied by the surrounding strata during the first stage of mineralization. On the other hand, as indicated by fluid inclusion data, the ore-forming fluid at the second stage was of meteoric origin and the precipitation of gold was caused by phase separation.
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