Physicochemical conditions of differential mineralization of Au and As in gold deposits, southwest Guizhou Province, China
- 37 Downloads
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.
Key wordsCarlin-type gold deposit gold arsenic differential mineralization physicochemical condition
Unable to display preview. Download preview PDF.
- Bakken, B. M. et al., 1989, High-resolution microscopy of gold in unoxidized ore from the Carlin mine, Nevada: Econ. Geol., v. 84, p. 171–179.Google Scholar
- Radtke, A.S., 1985, Geology of the Carlin gold deposit: U.S. Geol. Survey Proj. Paper 1267, p. 1–124, Washington D.C.Google Scholar
- Shenyang Institute of Geology and Mineral Resources, 1989, Papers on regional metallogenesis conditions of major types of gold deposits in China (Vol.6), Southwest Guizhou Province: Beijing, Geology Press, p. 1–201 (in Chinese).Google Scholar
- Zhang Zhenggen, Ouyang Ziyuan et al., eds., 1988-1992, Encyclopedia of China’s gold deposits (Volumes 1–6): Guiyang, Guizhou Nationality Publishing House (in Chinese).Google Scholar