| 水城断陷的地质特征及构造演化 |
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| 引用本文： | 毛健全,张启厚.水城断陷的地质特征及构造演化[J].贵州工业大学学报(自然科学版),1997,26(2):1-6. |
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| 作者姓名： | 毛健全 张启厚 |
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| 作者单位： | 贵州工业大学资源工程系 |
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| 摘 要： | 水城断陷属滇黔桂裂谷的次一级的构造单元，在大地构造演化，岩相古地理，对菱铁矿及铅锌矿等矿产的成矿控制方面均具十分重要的意义，水城断陷在伸展期的显著特点是不对乐变形，垭都－蟒洞断裂始于都匀运动，其伸展模式是以该断层为主拆离断层的单剪模式，水城断陷的演化可分为早期断裂，中期强烈沉降，后期基性岩喷溢，晚期封闭消亡和燕山期构造反转五个阶段。
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| 关 键 词： | 断陷 地质特征 构造演化 水城 断裂运动 |
THE GEOLOGICAL CHARACTERISTICS AND TECTONIC EVOLUTION OF SHUICHENG FAULT SUBSIDENCE |
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| Mao Jianquan,Zhang Qihou,Gu Shangyi.THE GEOLOGICAL CHARACTERISTICS AND TECTONIC EVOLUTION OF SHUICHENG FAULT SUBSIDENCE[J].Journal of Guizhou University of Technology(Natural Science Edition),1997,26(2):1-6. |
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| Authors: | Mao Jianquan Zhang Qihou Gu Shangyi |
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| Abstract: | As a second-order tectonic unit of Yunnan-Guizhou-Guangxi Rift Valley,Shuicheng fault subsidence is significantly important in the tectonic evolution,the distribution of lithofacies and palaeogeography,and the mineralizing control of siderite and lead-zine depostits.It is distinctly characterized by unsymmetrical deformation in the extensional period.Yadu-Mangdong fracture was initiated from Duyun Movement,and its extensional type is a single shear model with the fault as its main detachment.The evolution of Shuicheng fault subsidence can be divided into five stages:early stage of taphrogeny,middle stage of strong depression,stage of basaltic magma effusion,late stage of closure and consumption,and Yanshan stage of tectonic inversion. |
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| Keywords: | fault subsidence geological characteristics tectonic evolution Shuicheng |
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