Physicochemical Conditions of Differential Mineralization of Au and As in Gold Deposits,Southwest Guizhou Province,China |
| |
摘 要: |
|
关 键 词: | 卡林型金矿床 砷 矿化作用 物理化学条件 贵州 |
Physicochemical conditions of differential mineralization of Au and As in gold deposits,southwest Guizhou Province,China |
| |
Authors: | He Mingyou |
| |
Institution: | (1) Institute of Geochemistry, Chinese Academy of Sciences, 550002 Guiyang |
| |
Abstract: | The conditions under which gold and arsenic are enriched separately during mineralization in gold deposits in southwestern
Guizhou Province were described and the thermodynamic calculations gave: 200–150°C at 400 × 10−6 -300 × 106 Pa (corresponding to a depth between 1.6 km and 1.2 km); lgf o2,−40 to -35 Pa; lgf s2, -20 to−16 Pa; pH 5.0 -4.2 and Eh -0.53 V.
This project was jointly supported by the National Natural Science Foundation of China and the Open Lab. of Ore Deposit Geochemistry,
Institute of Geochemistry, Chinese Academy of Sciences. |
| |
Keywords: | Carlin-type gold deposit gold arsenic differential mineralization physicochemical condition |
本文献已被 SpringerLink 等数据库收录! |
|