东海陆架盆地典型剖面的综合地球物理解释  

Integrated geophysical interpretation of the typical profile of the East China Sea shelf basin

作　　者：丁海涛[1] 陈冰[1] 高德章[2] 唐建[2] 

机构地区：[1]同济大学海洋与地球科学学院,上海200092 [2]中国石化上海海洋油气分公司,上海200120

出　　处：《勘探地球物理进展》2004年第4期269-273,共5页Progress in Exploration Geophysics

基　　金：国家重大基础研究发展项目(G2000046702-02)。

摘　　要：从分析东海的岩石物性出发,结合地球物理的勘探资料,建立了物理一地质模型。通过重力、磁力、地震综合正反演,配合地质资料,以东海A-A剖面为主对所建立的模型进行了综合解释,推断了东海陆架盆地的地质结构,重点研究了中、古生界及前寒武系的分布特点,指出了前新生代残留盆地研究的重要性,并讨论了基底与地壳结构上的南北差异及其原因。综合物探方法在解决东海陆架盆地及其邻域的地下地质结构,乃至盆地的形成、演化、火成岩分布等方面,比单一的物探方法要优越。A physical-geological model was set up based on the studies of rock properties and geophysical data in East China Sea. Then integrated interpretation was carried out on a typical profile A-A through integrated forward modeling & inversion of gravity, magnetic and seismic data. The geological structure of the shelf basin in East China Sea, the distribution of Mesozoic, Palaeozoic and Cambrian strata, were both studied in the paper. Furthermore, the importance of studying the Pre-Cenozoic residual basin as well as the reasons resulted in the difference of basement and crustal structure between the south and north, were discussed. The paper showed that integrated geophysical method was superior to the single geophysical method in the studies of geological structure and other related problems in the shelf basin and its adjacent area of East China Sea.

关 键 词：地球物理 典型剖面 东海陆架盆地 前寒武系 正反演 综合物探 地质结构 残留盆地 岩石物性 综合解释 

分 类 号：TE122.1[石油与天然气工程—油气勘探] P631[天文地球—地质矿产勘探]