黔中隆起及周缘基底结构、断裂特征  

Basement Structures and Fault Characteristics in Qianzhong Uplift and Its Circumferential Areas

作　　者：封永泰[1] 赵泽恒[1] 赵培荣[1] 周卓铸[1] 

机构地区：[1]中石化南方勘探开发分公司,云南昆明650200

出　　处：《石油天然气学报》2007年第3期35-38,共4页Journal of Oil and Gas Technology

摘　　要：综合研究认为黔北坳陷、黔西南坳陷基底地层为板溪群,黔中隆起为四堡群,推测黔南坳陷、江南隆起为下江群;黔中隆起及周缘地区断层的重磁特征表现为梯度带,呈线性、串珠状异常,MT电性剖面表现为不同电性层突变相接。断裂控制了基岩结构及两侧构造的样式。A comprehensive study reveals that basement formation in Qianbei Depression and Qianxinan Depression of Banxi Group, Qianzhong uplift belonged to Sibao Group. It is estimated that Qiannan Depression and Jiangnan Uplift belongs to Xiajiang Group. The heavy magnetic characters of fault zones in Qianzhong Uplift and its circumferential areas presents gradient zone in linear and abnormal beaded shape, MT electric profile presents as different electric layer abrupt connection, thus the base rock structures and tectonic shapes on both sides of base rocks are controlled by the faults.

关 键 词：基底结构 断裂特征 黔中隆起 

分 类 号：P542[天文地球—构造地质学]