摘要
利用在曾母盆地西部所采集的大量地震、重磁及有关的钻井、地质资料 ,对该区的地震反射特征、沉积特征、区域地质和构造发展史进行了论述 ,对地质构造特征进行了较为详细的综合分析。文章认为 ,曾母盆地是发育在块体会聚带上的周缘前陆盆地 ;其构造演化经历了前陆拗陷、走滑改造和区域沉降三个阶段 ;在地震剖面上存在 T2 ,T3,T31 ,T4 ,T5(Tg) 5个区域不整合界面 ;盆地内断裂和局部构造均十分发育 ,局部构造主要有泥底辟、断块、花状。
Using a vast amount of seismic, gravitational and magnetic data as well as related drilling and geologic data acquired in the west of Zengmu basin, the paper elaborated seismic reflection feature, depositional feature, regional geology and structural history of the region and synthetically analyzed the geologic structural feature in detail. The article considered that the Zengmu basin is a peripheral foreland basin developed in block of convergent belt; its structural evolution experienced three steps: foreland depression, strike slip reformation and regional subsidence; there are five unconformable interfaces: T 2,T 3,T 3 1,T 4,T 5 (T g)that can be seen on the seismic data section;faults and local structures are developed in the basin,which include five categories:mud diapire,fault block, flowered structure,inverted structure and buried hill.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2002年第4期354-362,共9页
Oil Geophysical Prospecting
