| 安徽铜陵天马山金硫矿床地质地球化学特征 |
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| 关键词:Au-S deposit two-member texture geology-geochemistry Tianmashan in Anhui |
| 基金项目:国土资源部科技专项研究项目(编号: B0002-3) |
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| 摘要: |
| Geological and Geochemical Characteristics of the Tianmashan Au-S Deposit in Tongling, Anhui Province |
| The Tianmashan Au-S deposit is geochemically characterized by a vertical variation and a “two-member texture” as well as the development of the upper stratiform ore bodies and the lower disseminated-veinlet mineralized rocks (ores). Pb, Zn, Au, Ag, As, Hg content and average δ18O values increase progressively whereas Cu, Mo, Cr, Co, Ni, REE content, measured temperatures (from 499℃ to 65℃) of fluid inclusions and δ34S decrease gradually from the lower disseminated-veinlet mineralized rocks (ores) to the upper stratiform ore bodies. δ34S values of pyrite range from +4.0‰ to +9.6‰. The average δ18O value of calcite and quartz in the upper stratiform ore body is +13.7‰, while that of quartz and whole rock in the lower disseminated-veinlet mineralized rocks (ores) is +12.3‰. These geological-geochemical characteristics suggest that the Tianmashan Au-S deposit is of the submarine sedimentary exhalative origin. |
| YANG Qiu-rong,WANG Jin-fang,FENG Jing-zhi,HOU Zeng-qian,YANG Zhu-sen,MENG Yi-feng,WANG Cong-ying,CHEN Wen-tao.2010.Geological and Geochemical Characteristics of the Tianmashan Au-S Deposit in Tongling, Anhui Province[J].Acta Geoscientica Sinica,31(2):203-208. |
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