摘要
塔里木盆地在中生代是一个多构造幂、多成盆期沉积实体相叠置的大型含油气盆地。在纵向上以构造幕为界面将中生代分为4个成盆期(P_2—T、J、K_1及K_(2+3)),共计有10个原型盆地。根据各成盆期盆地形成的边界条件和应力场特征,将10个原型盆地分为4类(山前盆地、坳陷盆地、断陷盆地及走滑盆地);而据各成盆期原型盆地的叠置部位和方式,可将其分为4种叠置类型(复合叠置型、交错叠置型、披盖叠置型及镶嵌叠置型)。由于塔里木盆地古生界有极丰富的有机物质和巨厚的生油层系,中生界发育了很多油气圈闭,故“古生中储”是最重要的成藏模式。
During Mesozoic,Tarim Basin is a huge petroliferous basin which is characterized by the superimposed sedimentary bodies formed through multiple tectonic phases and basining epoches. The Mesozoic can be vertically divided into four basining epoches(P_2—T,J,K_1 and K_(2+3)) bounded by tectonic phases,and 10 prototype basins formed . These basins can be classified into four species (foreland basin ,down—warped besin,graben basin and strike—slip basin) based on boundary conditions for the basin formation at each besining epoch and stress field features. Depending on their superimposed positions and patterns,they can also be classified into four superimposed types (multi—superimposed , cross—superimposed, overlap—superimposed and mosaic—superimposed). In Tarim Basin, abundant source beds exist in the Mesozoic and Paleoxoic. With, substancial hydrocarbon traps being developed. Oil generated in the Paleozoic and accumulated in the Mesozoic is the most important style for hydrocarbon accumulation.
出处
《新疆石油地质》
CAS
CSCD
北大核心
1991年第3期189-189,共1页
Xinjiang Petroleum Geology
关键词
油气
勘探
中生代
盆地
构造演化
mesozoic,basining epoch,prototype basin,superimposed pattern ,tectonic evolution,oil prospect.
