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- Title
Laumontitization as an Exploration Indicator of Epithermal Gold Deposits: A Case Study of the Axi and Other Epithermal Systems in West Tianshan, China.
- Authors
Chen Yanjing; Bao Jiogxin; Zhang Zengjie; Liu Yulin; Chen Huayong
- Abstract
In the light of field investigation, microscopic study, X-ray phase analysis and mineral infrared spectral analysis, it is considered that laumontitization is of extensive occurrence in the Axi gold orefield. The development of laumontilization and its relationship to mineralization show that the laumontitization appeared mainly at the lop of and in the periphery of orebodies, and occurred at the edge of the epithermal system or at the late stage of epithermal system evolution. Therefore, laumontitization can be used as an exploration indicator of epithermal gold deposits. The fluids responsible for laumomitization in the Axi gold orefield are similar to those producing hot spring-type gold deposits or those from modern geothermal fields. Epithermal mineralization of the Axi gold deposit was dated at Carboniferous, indicating that the West Tianshan of China is a region favorable to epithermal-type gold mineralization and preservation. Hence the West Tianshan of China is a target area for exploring epithermal gold deposits.
- Subjects
INFRARED spectra; SPECTRUM analysis; GOLD; ORE deposits; MINES &; mineral resources
- Publication
Chinese Journal of Geochemistry, 2003, Vol 22, Issue 4, p289
- ISSN
1000-9426
- Publication type
Article
- DOI
10.1007/BF02840401