中扬子区地质特征与含油气性  

GEOLOGICAL CHARACTERISTICS AND HYDROCARBON POTENTIAL OF MIDDLE YANGZI REGION

作　　者：王林生 韩定坤 

机构地区：[1]中南石油地质局地质大队

出　　处：《石油与天然气地质》1996年第1期53-57,共5页Oil & Gas Geology

基　　金：国家科技攻关

摘　　要：中扬子区是一古老、稳定，具陆壳性质的地台，以岩石圈厚度大、大地热流值低为特点。稳定的深部地质基础，使印支期后的构造变革无法改变整体的稳定格局，也无法对下古生界的油藏进行根本性的破坏，特别是志留系滑脱层的保护和冷壳对油气演化的延缓作用，利于深层油气的再次运移、聚集和保存。以江汉盆地为主体的新生代伸展盆地，并非处于大陆裂谷带，形成以时代新、干扰少、构造形态完整为特点的含油区。Middle Yangzi Region is an ancient stable latform of continental crust type that is characterized by great.thickness of lithosphere and low heat flow value. Post indo-China structural reformation could not change the whole stable framework of the platform,nor could itessentially damage the Lower Paleozoic oil pools of the region. The protection of Silurian detached formations and the delay of hydrocarbon evolution resulted from cold crust favour theremigration,accumulation and preservation of deep seated oil and gas. The Cenozoic extending basins in which Jianghan Basin is the main body is not located at the continental riftzone,its formation time is new and it is less disturbed. It could be considered as a oil provincewith completely developed structural configuration.

关 键 词：物理场 岩石圈厚度 含油气性 地质特征 油气藏 

分 类 号：P618.130.2[天文地球—矿床学]