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| 甘肃西和县大桥金矿床的成因研究 | |
| 引用本文： | 刘月高,吕新彪,张振杰,尤关进,曹晓峰,王玉奇,刘阁.甘肃西和县大桥金矿床的成因研究[J].矿床地质,2011,30(6):1085-1099. |
| 作者姓名： | 刘月高 吕新彪 张振杰 尤关进 曹晓峰 王玉奇 刘阁 |
| 作者单位： | 1. 中国地质大学资源学院,湖北武汉,430074 2. 中国地质大学资源学院,湖北武汉430074;中国地质大学地质过程与矿产资源国家重点实验室,湖北武汉430074 3. 甘肃省地质调查院,甘肃兰州,730000 |
| 基金项目： | 本文得到地质过程与矿产资源国家重点实验室自主项目“西秦岭地区构造-岩浆活动与成矿作用”资助 |
| 摘 要： | 大桥金矿床位于岷县北-宕昌北大断裂与窑上-石峡大断裂之间.金矿化严格受三叠系下部建造层下岩性段(Ta-1)硅质角砾岩的控制.硅质角砾岩呈层状产出,层位稳定.矿石为有机质含量高并具有黄铁矿化的硅质角砾岩,其黄铁矿环带发育.硅质角砾岩和纹层状硅质岩在稀土元素配分图上未表现出热水沉积的特征,其Fe/Ti-Al/(Al+ Fe... |
| 关 键 词： | 地质学 硅质角砾岩 环带状黄铁矿 热水沉积型金矿床 中-低温热液型金矿床 西秦岭 甘肃 |
Genesis of Daqiao gold deposit in Xihe County, Gansu Province |
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| LIU YueGao , L XinBiao , ZHANG ZhenJie , YOU GuanJin , CAO XiaoFeng , WANG YuQi , LIU Ge.Genesis of Daqiao gold deposit in Xihe County, Gansu Province[J].Mineral Deposits,2011,30(6):1085-1099. | |
| Authors: | LIU YueGao L XinBiao ZHANG ZhenJie YOU GuanJin CAO XiaoFeng WANG YuQi LIU Ge |
| Institution: | LIU YueGao , L(U) XinBiao , ZHANG ZhenJie , YOU GuanJin , CAO XiaoFeng , WANG YuQi , LIU Ge |
| Abstract: | The Daqiao gold deposit lies between the Minxian-Dangchang fault and the Yaoshang-Shixia fault.Its gold mineralization exists in the lower lithologic member of lower Triassic formation bed,in which the siliceous breccia presents itself in the bedded form.Ores are pyritized siliceous breccia with high organic carbon content,and pyrite zones are well developed.Siliceous breccia and layered siliceous rocks do not show characteristics of hot-water sedimentary origin in REE patterns.The features of the Fe/Ti-Al/... |
| Keywords: | geology siliceous breccia zonal pyrite hot-water sedimentary gold deposit middle-low temperature hydrothermal gold deposit West Qinling Gansu Province |
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