| 贵州从江地区滑脱构造初步研究 |
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| 引用本文： | 刘灵,王康年,李吉春,曾昭光,张华.贵州从江地区滑脱构造初步研究[J].贵州地质,2003,20(3):139-144. |
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| 作者姓名： | 刘灵 王康年 李吉春 曾昭光 张华 |
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| 作者单位： | 1. 贵州省地质调查院,贵州,贵阳,550004;贵州省地勘局101地质大队,贵州,凯里,556000
2. 贵州省地质调查院,贵州,贵阳,550004;贵州省地勘局117地质大队,贵州,贵阳,55000 |
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| 摘 要： | 通过1：5万宰便、高武幅区调工作，在从江地虎—南加地区发现大型滑脱构造。该构造发育于中元古界四堡岩群与新元古界下江群不整合面之上，卷入的地层主要为下江群。通过对其几何学、运动学的研究，认为该区滑脱构造主要是由于花岗岩浆侵位、盖层沿基底(不整合面)产生侧向以重力为主的滑覆构造类型，从而初步建立了该区滑脱构造的成因模式；探讨了构造蚀变岩与该滑脱构造的意义及其与蚀变岩型多金属矿产的关系。
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| 关 键 词： | 贵州 从江地区 滑脱构造 形成机制 不整合面 |
| 文章编号： | 1000-5943(2003)03-0139-06 |
A Study on Detachment Structure in Congjiang,Guizhou |
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| LIU Ling,WANG Kang - nian,LI Ji - chun,ZENG Shao - guang,ZHANG Hua.A Study on Detachment Structure in Congjiang,Guizhou[J].Guizhou Geology,2003,20(3):139-144. |
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| Authors: | LIU Ling WANG Kang - nian LI Ji - chun ZENG Shao - guang ZHANG Hua |
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| Abstract: | Through the regional survey within the range of Zhaibian and Gaowu on the scale of 1 to 50, 000, a large - scale detachment structure is discovered in the Dihu - Nanjia localities of Congjiang, southeast Guizhou. It developed above unconformable planes of Mesoproterozoic Sibao Group and Nesoprot-erozoic Xiajiang Group, mostly involving the strata of the Xiajiang. In the wake of the studies on its geometry and kinematics, the detachment structure is considered a tectonic pattern of slide overlying prior to side - gravity generated from the cover that edging the basement (unconformable plane) due to magmatic intrusion of granite, consequently creating the genetic mode for the detachment structure; discussing the significance on structural altered rock and detachment and their relationship with the altered rock type of poly-metallic minerals. |
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| Keywords: | detachment structure formation mechanism Congjiang Guizhou |
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