| 甘肃西成地区层状的花岗质岩脉地质地球化学特征及其与金矿关系 |
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| 引用本文： | 吴烈善 金安祥. 甘肃西成地区层状的花岗质岩脉地质地球化学特征及其与金矿关系[J]. 矿产与地质, 1997, 11(5): 303-308 |
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| 作者姓名： | 吴烈善 金安祥 |
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| 作者单位： | 中国有色金属工业总公司矿产地质研究院，甘肃有色地勘局地质二队，甘肃有色地勘局１０６地质队 |
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| 摘 要： | 西成地区小沟里和三洋坝金矿区发育层状的花岗质岩脉带，其成岩物质既有岩浆热液来源又有地层来源，反映了海西期秦岭裂谷扩张时岩浆热液顺层交代泥盆系岩层的成因特征；层状的花岗质岩脉与石英钠长岩等共同构成了西成地区泥盆纪热液交代，热水沉积所形成的层状交代沉积岩系；层状的岩脉与金矿床的空间关系密切是寻找金矿床的有效岩石标志。
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| 关 键 词： | 花岗质岩脉，地质地球化学，金矿床，甘肃西成 |
GEOCHEMICAL CHARACTERS OF THE STRATIFORM GRANITIC VEINS AND THEIR RELATIONS TO THE GOLD DEPOSITS IN XICHENG REGION,GANSHU |
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| Wu Lieshan,Wei Longming,Lu Handi,. GEOCHEMICAL CHARACTERS OF THE STRATIFORM GRANITIC VEINS AND THEIR RELATIONS TO THE GOLD DEPOSITS IN XICHENG REGION,GANSHU[J]. Mineral Resources and Geology, 1997, 11(5): 303-308 |
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| Authors: | Wu Lieshan Wei Longming Lu Handi |
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| Abstract: | A group of stratiform granitic veins occur in the Xiaogouli and Sanyangba gold Mines in Xicheng region.Materials for the formation of rocks are not only from magma solution,but also from strata,which suggest the genetic character,i.e. the rock formation in Devonian was replaced along strata by magma solution during the extension of the Qinlin rift at Hercynian.Which together with the quartz albitite etc.composited the replaced stratiform sedimentary rock series formed by Devonian hydrothermal metasomtism and hydrothermal sedimentation.The stratiform vein being closely related to gold deposits in space is the effective rock indicator searching for gold deposit. |
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| Keywords: | Granitic vein Geology and Geochemistry Gold deposit Xicheng Ganshu |
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