| 湘黔汞矿带旋扭构造动力作用与成矿规律 |
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| 引用本文： | 雷义均,戴平云,段其发,王国强,赵武强.湘黔汞矿带旋扭构造动力作用与成矿规律[J].大地构造与成矿学,2012,36(4). |
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| 作者姓名： | 雷义均 戴平云 段其发 王国强 赵武强 |
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| 作者单位： | 武汉地质矿产研究所,湖北武汉,430205 |
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| 摘 要： | 湘西黔东地区,在古生代沉积盖层中,北北东向保靖-铜仁断裂带的东侧,发育一系列北东向平移逆冲压扭性断裂构造带,它们均具有相似的变形特征和动力学机制,构成一个大型压扭性旋扭构造系统。旋扭构造控制了湘黔汞矿带的分布,其中北东向断裂带控制了汞矿带内各矿田的展布,而由北东向断裂带所派生的次级张扭性断裂裂隙带,则控制了单个矿体或矿床的产出和定位,特大型和大型汞矿床均产于旋扭构造的应力强区内。
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| 关 键 词： | 湘黔汞矿带 旋扭构造动力作用 成矿规律 |
Rotational Shear Tectonics and Metallogeny of the Mercury Ore Belt in Hunan and Guizhou Provinces, China |
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| LEI Yijun
,
DAI Pingyun
,
DUAN Qifa
,
WANG Guoqiang
,
ZHAO Wuqiang.Rotational Shear Tectonics and Metallogeny of the Mercury Ore Belt in Hunan and Guizhou Provinces, China[J].Geotectonica et Metallogenia,2012,36(4). |
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| Authors: | LEI Yijun DAI Pingyun DUAN Qifa WANG Guoqiang ZHAO Wuqiang |
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| Abstract: | There exist a series of NE-trending strike-slip thrust knob fault belts in the Paleozoic sedimentary rocks west of the NNE-trending Baojing-Tongren fault belt in western Hunan and eastern Guizhou provinces.The fault belts have similar faulting characteristics and kinetic mechanism,are form a large-scale thrust knob structure.The knob structure controlled the distribution of the mercury ore belt in Hunan and Guizhou provinces.The NE-trending fault belt controlled the ore fields in the mercury ore belt,while the secondary extentional-shear fault and fractures derived from the NE-trending fault belt controlled the outcrop and location of individual ore body or deposit.The super-large and large-scale mercury ore deposits occur in the strong stress areas of the knob structure. |
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| Keywords: | mercury ore belt Hunan Guizhou rotational shear tectonic dynamic effect metallogeny |
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