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| 湘东─赣西NNE向走滑构造 | |
| 引用本文： | 李先福,傅昭仁,李建威,陈小东.湘东─赣西NNE向走滑构造[J].大地构造与成矿学,2001,25(2):136-140. |
| 作者姓名： | 李先福 傅昭仁 李建威 陈小东 |
| 作者单位： | 1. 武汉化工学院, 2. 中国地质大学, 3. 核工业中南地质局 301队, |
| 基金项目： | 国家自然科学基金项目（ 49572148）和核工业中南地质局科研项目（ 9512）资助 . |
| 摘 要： | 湘东─赣西构造岩浆带位于郯庐断裂南延的关键性部位。中生代以来，该区 NNE向左旋走滑构造主要由会聚走滑和 K─ E离散走滑构造叠加而成。会聚走滑作用造就了 NNE向雁列式剪切断裂系、剪切弯曲和旋转构造、压剪性煤盆地以及断层动热变质─剪切重熔型花岗岩；而离散走滑作用则控制了该区广泛发育的张剪性红盆地、盆岭式构造地貌、以及大规模中低温热液矿床的形成。湘东─赣西复杂的平移构造型式很可能与该区地壳结构分层特征、前期断裂构造格局、平移幅度和多期走滑构造作用四个因素有关。 |
| 关 键 词： | NNE向走滑断裂 平移构造 湘东─赣西地区 |
| 文章编号： | 1001— 1552(2001)02— 136— 05 |
| 修稿时间： | 2001年2月28日 |
STRIKE－ SLIP TECTONICS TRENDING NNE IN THE AREA OF EASTERN HUNAN AND WESTERN JIANGXI,CHINA |
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| LI Xian-fu,FU Zhao-ren,LI Jian-wei,CHEN Xiao-dong.STRIKE－ SLIP TECTONICS TRENDING NNE IN THE AREA OF EASTERN HUNAN AND WESTERN JIANGXI,CHINA[J].Geotectonica et Metallogenia,2001,25(2):136-140. | |
| Authors: | LI Xian-fu FU Zhao-ren LI Jian-wei CHEN Xiao-dong |
| Abstract: | Eastern Hunan－ western Jiangxi(EHWJ) is an important site of Tan－ Lu fault south elongation.Since Mesozoic Era the NNE－ trending left－ lateral strike－ slip tectonics (NNE－ SST) are mainly compounded of T3～ J convergent SST and K～ E divergent SST. The convergent strike－ slip faulting resulted in a large amount of en echelon folds and faults, remelted granites, shear curve and rotation structures as well as compressive－ shear coal basins. The divergent strike－ slip faulting directly controlled formation and distribution of significant polymetallic hydrothermal deposits,“ basin－ range" type tectonic landforms and shear－ tensional red basins.The reason of more complicated wrench tectonics in EHWJ than that in Tan－ Lu area was mainly related to the differences of the crust structural layer,pre－ existing fault style, displacement and strike－ slip tectonic formation history between these two areas. |
| Keywords: | NNE－trending strike－slip fault wrench tectonics eastern Hunan and western Jiangxi China |
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