| 拉尔玛硅岩型金—铜—铀建造矿床的海底喷流沉积特征及找矿方向 |
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| 引用本文： | 刘家军,郑明华.拉尔玛硅岩型金—铜—铀建造矿床的海底喷流沉积特征及找矿方向[J].四川地质学报,1992(2). |
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| 作者姓名： | 刘家军 郑明华 |
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| 作者单位： | 成都地质学院
(刘家军)，成都地质学院(郑明华) |
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| 摘 要： | 西秦岭南亚带中的拉尔玛硅岩型金-铜-铀矿床,是一个比较典型的与海底喷流作用有关的金矿床。矿床赋存于寒武系太阳顶群中。太阳顶群地层由硅岩、板岩组成,厚度近千米。现已发现的矿体,80％以上产于硅岩中。硅质岩的地质地球化学特征表明,它是海底喷气沉积作用的产物,拉尔玛金-铜-铀建造矿床也具有海底喷流的沉积特征。
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| 关 键 词： | 海底喷流成矿作用 硅岩 金—铜—铀建造 矿床 找矿方向 |
EXHALATIVE-SEDIMENTARY FEATURES AND PROSPECTING TARGETS OF LAERMA GOLD-COPPER-URANIUM DEPOSIT |
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| Liu Jiajun and Zheng Minghua.EXHALATIVE-SEDIMENTARY FEATURES AND PROSPECTING TARGETS OF LAERMA GOLD-COPPER-URANIUM DEPOSIT[J].Acta Geologica Sichuan,1992(2). |
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| Authors: | Liu Jiajun and Zheng Minghua |
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| Affiliation: | Chengdu College of Geology |
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| Abstract: | Laerma silicalite type Au-Cu-U deposit in the south subzone of the western Qinling is a more typical gold deposit which is related to submarine exhalative sedimentation. The deposit occurs in the Cambrian Taiyangding Group which is composed of silicalite and slate with a thickness of about 1,000m. More than 80% of the orebodies are confined to the silicalite. Geologic-geochemical features of the silicalite indicate that it is a product of submarine exhalative sedimentation which was responsible for the formation of the deposit. |
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| Keywords: | submarine exhalative-sedimentary ore-formation silicalite exhalite Au-Cu-U deposit prospecting targets |
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