| 休宁-歙县东南部金矿成矿地质条件及找矿方向 |
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| 引用本文： | 金敏.休宁-歙县东南部金矿成矿地质条件及找矿方向[J].安徽地质,2015(1):7-11. |
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| 作者姓名： | 金敏 |
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| 作者单位： | 安徽省公益性地质调查管理中心,安徽合肥,230601 |
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| 摘 要： | 休宁-歙县东南部是皖南重要的金多金属成矿带,区内金矿以石英脉型和构造蚀变岩型为主。矿床主要产于新元古代片麻状花岗岩与井潭组流纹质变火山岩中,其分布受北东向断裂控制,燕山期的左行平移作用形成的断裂带是区内重要的控岩控矿断裂,沿带侵入的燕山期花岗岩是区内金矿的成矿物质来源和热液来源。寻找和评价受岩浆热液影响的含硅化、云英岩化破碎带的含金蚀变岩型金矿是今后该区金矿找矿的主要方向。
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| 关 键 词： | 休宁-歙县东南部 金矿 找矿方向 |
metAlloGeniC ConditionS of Gold depoSitS And ore-proSpeCtinG direCtion in the SoutheAStern xiuninG-ShexiAn AreA |
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| JΙΝ Min.metAlloGeniC ConditionS of Gold depoSitS And ore-proSpeCtinG direCtion in the SoutheAStern xiuninG-ShexiAn AreA[J].Geology of Anhui,2015(1):7-11. |
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| Authors: | JΙΝ Min |
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| Institution: | JΙΝ Min;Public Geological Survey Management Center of Anhui Province; |
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| Abstract: | The southeastern Xiuning-Shexian area is an important gold polymetallic metallogenic belt in south Anhui, dominated by quartz vein and structural altered rock type gold deposits, which mainly occur in Neoproterozoic gneissic granite and the Jingtan Formation of rhyolitic metavolcanic rock and are controlled by NE-trending faults. The faults formed by the Yanshanian left-lateral motion control rocks and minerals in the area, and the Yanshanian granite emplaced along the faults are the source of ore-forming material and hydrothermal fluid. Auriferous altered rock type gold deposit with siliconized and greinsenized fracture zone affected by magmatic hydrothermal fluid is the major target for gold exploration and assessment in the area in the future. |
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| Keywords: | southeastern Xiuning-Shexian area gold deposit ore-prospecting direction |
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