吐哈盆地板块构造条件及其对油气的控制作用  

The Plate Tectonic Conditions and Their Controls on Hydrocarbon in Turpan-Hami Basin

作　　者：张恺[1] 

机构地区：[1]中国石油天然气集团公司石油勘探开发科学研究院,北京100083

出　　处：《新疆石油地质》2000年第4期261-265,共5页Xinjiang Petroleum Geology

摘　　要：吐哈盆地属于长期发展的叠合型含油气盆地，它位于准噶尔-吐鲁番古陆块的东南部。盆地北部的发生与发展与博格达准地槽裂谷带的形成及演化有关；其西北端和南部的发生与发展与北天山窄大洋西端的演化和碰撞前陆盆地形成有关；其东北部的发生与发展与西伯利亚古板块和新疆古陆板块之间的活动有关。盆地内的古生界属海相、海陆交替相沉积，中生界属陆相沉积。盆地壳-幔深部有两期热地幔上拱活动，具备了形成生物成因与非生物成因两大油气源叠合、富集的板块构造条件，是含油气潜力较大的中型食油气盆地，其深部蕴藏着丰富的石油、天然气资源。Turpan-Hami basin, located in the southeastern part of Junggar-Turpan ancient landmass, is a superimposed petroliferous basin with a long period of geologic development history. It is related closely to the evolution and formation of Bogeda parageosyncline rift belt for its northem part; to evolution of west end of north Tianshan mountain in narrow ocean and formation of collision foreland basin for its northwestern margin and southern part; and subjected to influence of movement between Siberia old plate and Xinjiang ancient landmass for its northeastem part. Marine and marine-continental alternating deposits are found in the Paleozoic, while continental deposits mainly in the Mesozoic.Two period uplifting movements of thermal ground anchor occurred in the deep crust-mantle of it, which formed plate tectonic conditions superimposed and edriched with two major hydrocarbon sources consisted of biogenic sediment and non-biogenic one. It is believed that Turpan-Hami basin is a medium-sized petroliferous basin with abundant oil and gas resources in its deep part.

关 键 词：裂谷 前陆盆地 板块构造 油气成因 含油气盆地 

分 类 号：P618.130.1[天文地球—矿床学] TE121.1[天文地球—地质学]