东吴运动的沉积学响应——以湘鄂西及邻区二叠系茅口组顶部不整合面为例  

SEDIMENTARY RESPONSE TO THE DONGWU MOVEMENT:A CASE OF THE UNCONFORMITY ON TOP OF THE PERMIAN MAOKOU FORMATION IN THE WESTERN HUBEI-HUNAN AND NEIGHBORING AREAS

作　　者：李旭兵 曾雄伟 王传尚 刘安 白云山 

机构地区：[1]武汉地质矿产研究所,湖北武汉430223

出　　处：《地层学杂志》2011年第3期299-304,共6页Journal of Stratigraphy

基　　金：中上扬子海相含油气盆地分析与油气成藏条件综合调查评价(121010733505);"黔江及邻区油气地质;地球物理调查及地层对比研究(1212011120968)"项目

摘　　要：湘鄂西及邻区二叠系茅口组顶部广泛发育了岩溶角砾岩,并形成了一个分布范围广阔的不整合面,该不整合面特征在各地存在明显差异,其上覆孤峰组与龙潭组也存在不同程度的缺失。东吴运动为两幕式构造运动,上述现象正是东吴运动Ⅰ幕、Ⅱ幕在不同地区的沉积学响应。The karst breccia extendedly developed on top of the Permian Maokou Formation in the western Hubei-Hunan and neighboring areas.So that,it forms a large unconformity.The unconformity appears differences in different areas.The Gufeng Formation and Longtan Formation,overlying the unconformity,are absent in different degrees in those areas.So,the Dongwu Movement can be subdivided to two episodes in this paper.The above phenomena indicate the sedimentary response to the two episodes of the Dongwu Movement.

关 键 词：不整合面 东吴运动 茅口组 二叠系 湘鄂西 

分 类 号：P534.43[天文地球—古生物学与地层学]