摘要
库车坳陷是在南天山海西褶皱带的形成过程中发展起来的中、新生代前陆盆地。发育四个褶皱和逆冲断层带；在浅部的逆冲－褶皱构造之下常发育“被动顶板双重构造”；构造变形由山前向陆腹扩展。坳陷具良好的油气生、运、储条件，从油气保存观点考虑。
Kuqa Depression, located in the North Tarim Basin, is a Meso-Cenozoic foreland basin. Its development was associated with the formation and development of Hercynian fold belt in Southern Tianshan Mountains. The depression is characterized by well developed fold and thrust belts strecthing in E-W direction and consists of four structural belts. The structural styles of the surface With imbricate structures, overthrust structures,recoil faults and propagating folds differ from those of subsurface 'passive-roof duplex structures'. These structures were formed by multi-tectonic movement, in particular, by Himalayas movements and the tectonic deformaion propagated from foreland to hinterland. Based on restored and balanced cross-sections, the shortening rate of the sections across the depression is estimated to be 27%￣44 %.It thus proposed that the depression has fsvourable conditions for hydrocarbon generation, migration and accumulation, and is a prospect area for hydrocarbon exploration. The exploration target should be focused on the structures in deep strata.
出处
《石油与天然气地质》
EI
CAS
CSCD
北大核心
1994年第1期40-50,共11页
Oil & Gas Geology
