| 新疆和静县乔霍特铜矿床成矿流体地球化学特征 |
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| 关键词:geology geochemistry ore-forming fluid Qiaohuote copper deposit Xinjiang |
| 基金项目:国土资源地质调查项目(编号:2003102000013和DKD20010272)，国家重点基础研究项目(编号:G1999043216) |
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| Geochemistry of Ore-forming Fluids in the Qiaohuote Copper Deposit of Hejing County, Xinjiang |
| Located in the Late Palaeozoic island arc belt north of the collisional suture between Yili-Middle Tianshan plate and Tarim plate, the Qiaohuote copper deposit is hosted in andesitic volcanic rocks of the Upper Silurian Bayinbuluke Formation. Its orebodies are wholely controlled by approximately EW-trendingbrittle fractures. In this paper, homogenization temperatures, salinities, rareearth elements and H,O isotopes of fluid inclusions in the Qiaohuote copper deposit were determined. The ore-forming temperatures range from 201 ℃ to 322 ℃,and the salinities of ore-forming fluids vary from 9.34% to 17.26%. The H,O isotopic data and REE composition of fluid inclusions indicate that the ore-formingfluids mainly came from magmatic water, and the metals were mainly derived fromandesitic volcanic rocks. The Qiaohuote copper deposit is of the hydrothermal type. |
| WANG Zhi-liang,MAO Jing-wen,YANG Jian-min,HAN Chun-ming,ZHANG Zuo-heng.2004.Geochemistry of Ore-forming Fluids in the Qiaohuote Copper Deposit of Hejing County, Xinjiang[J].Acta Geoscientica Sinica,25(5):549-554. |
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