| 刘红樱,周顺之,胡受奚,王群昌.河南栾川元岭金矿地质特征及形成条件[J].地质找矿论丛,1995,(4):20-30 |
| 河南栾川元岭金矿地质特征及形成条件 |
| GEOLOGICAL CHARACTERS AND ORE-FORMING CONDITION OF YUANLIN GOLD DEPOSIT IN LUANCHUAN COUNTY, HENAN PROVINCE |
| 投稿时间：1995-06-01 修订日期：1995-09-19 |
| DOI：10.6053/j.issn.1001-1412.1995.4. 003 |
| 中文关键词: 金矿床 地质特征 成矿条件 矿床成因 河南栾川元岭 |
| 英文关键词: |
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| 摘要点击次数: 1112 |
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| 中文摘要: |
| 元岭金矿有原生破碎蚀变岩型和次生氧化淋滤型,产于熊耳群变火山岩中,受EW向和NE向断裂交汇处控制,硅化和黄铁绢英岩化有利矿化,原生矿是深部流体引起上覆陆壳岩石重熔、混合后,演化成成矿热液沿马超营断裂上侵并汲取围岩部分物质而成。 |
| 英文摘要: |
| Yuanlin gold deposit occurs in metavolcanities of Zhanghemiao Formation and Jiaoyuan Formation in Xiong’er Group. The gold deposit consists of primary tectonic-alteration-rock type (loler part) and secondary oxidation-leach type ores. It was controlled by the intersection area of EW strike fracture and NE strike fracture. The hydrothermal alteration are mainly silification and pyrite-phyllitization. Hg, Pb, Zn, Cu, As, Mo, Bi are guider elements of mineralized alteration. For the gold-bearing quartz δ18OH2O‰ values, between 3.10 6.28 and δDH2O‰ values vary between -84.110──99.539.The sulphide δ34S‰ values vary between -1.31-4. 55.The ore-forming conditions are temperature 226-276℃,pH values 7.44-9.67,fO210-45,54-10-50,34Pa, Eh values -1.530──1.683V. These demonstrate that the deep fluids caused the overlying crust rocks to remelt and mix, developed into ore-forming fluids, uptrwelled along Machaoytn fault and absorbed sulphur and metallogenic materials of Taihua Group and Xiong’er Group to form the primary gold ore. It belongs to moderate temperature, moderate-shallow-seated deposit. |
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