| Autor: |
Hua-Ming Peng, Qi Yuan, Fei Xia, Fu-Jun Liu, Bao-Hua Huang |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Energy, Environmental & Sustainable Ecosystem Development. |
| DOI: |
10.1142/9789814723008_0041 |
| Popis: |
Shimensi tungsten deposit was discovered in 2010 at Dahutang area in Southeast China, where the world’s largest tungsten deposit was found. The ores, accounting for about 90% of total reserves, were hosted in the contact zones of Late Jinningian biotite granodiorite and the top of Late Mesozoic porphyraceous biotite granite stock. The tungsten deposit is close with the granites in age. The S values of chalcopyrites from the tungsten ores in Shimensi are –1.69‰ to –0.91‰, indicating the tungsten metals in Shimensi deposit came from magma. The parent magmas of porphyraceous biotite granites were derived from the tungsten-rich Proterozoic Shuangqiaoshan group and experienced strongly fractional crystallization, which led to further enrichment of tungsten in the magma. These tungsten metals in the granitic magmas can be removed for mineralization.Therefore, the porphyraceous biotite granites can be believed to contribute most of the tungsten to the Shimensi tungsten deposit. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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