摘要
西北地区在板块演化的不同地史阶段,形成了不同类型的原型盆地,它们构成了圈闭赋存的实体,并影响圈闭发育丰度、类型及布局。原型盆地的发展及多旋回迭加改造对圈闭的形成作用主要表现在五个方面,即同生期、同褶皱期、成盆期前、继承性及穿时性。盆地的迭加既有沉积的迭加又有构造的迭加,从而形成多层次、多发育时代复式圈闭的特征,并归纳为九种圈闭组合形式。在此基础上,根据西北地区圈闭的形成机理、封闭因素划分出三大类、七亚类和十八细类圈闭类型。
Various types of prototypes basins were formed during different stages in the evolution of plates in the geological history in northwestern China, forming real bodies for the occurence of the traps, and affecting the abundanse, types and distribution of the traps.The roles played by the development of the protype basins combined with the reforming of multiple cycle overlapping on the formation of traps can be expressed in following aspects: synergenesis, synerfolding, pre-basin, basin succession and through-time.The overlapping of basins includes both sedimentary overlapping and structural overlapping, so that characteristics of multi-step, multistage of composite traps are exhibited and ten types of trap associations are summarized.On this basis, according to the mechanism of trap formation in this region.Three major types, eight subtypes and eighteen finely-divided types of the traps are classified.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1993年第5期15-25,共11页
Petroleum Exploration and Development
基金
"七五"国家重点科技攻关课题
