descending central series

The sedimentation and subsidence center of the Lower Palaeozoic is migrated continually,and the migratory property is mostly controlled by the tectonic mobile belt of slab fringe.

虽然其沉积沉降中心不断迁移,但其迁移性主要受板缘构造活动带影响,板内并未发生构造变形(褶皱、断裂),故沉积环境和沉积厚度差异不大,总体表现为浅水、高能、盆内碎屑丰富的陆表海沉积环境。

Oil-gas generation, migration and accumulation rules are studied and the relationship among structure, hydrocarbon source rocks, subsidence center and oil?gas enrichment is discussed from the aspects of the hydrocarbon source rocks, oil?gas migration, structure and reservoir in Chexi subsag of Chezhen sag.

从车镇凹陷车西洼陷烃源岩、油气运移、构造及储集层等方面研究了油气的生成、运移和聚集规律 ,探讨了构造、烃源岩、沉降中心与油气富集的关系。

There are the two subsidence areas in shape of funnel in the south Kunming;the one took Xiaobanqiao as the subsidence center with the subsidence value of up to 227 5 mm(1985～1998);evident subsidence occurred in Zhujiacun,Wujiaba airport,Guangweicun,Xiaosicun,Liujia and Guandu with the average rate of about 17 mm/a and the maximum subsid.

该地区形成两个明显的漏斗形沉降区 ,一个是以小板桥为中心的沉降区 ,其中在朱家村、巫家坝机场、广卫村、小喜村、六甲、官渡等地较为明显 ,在沉降中心 (小板桥 )沉降量达 2 2 7 5mm (1985～ 1998年 ) ,平均下沉速率在 17mm/a左右 ,最大达 30 0 0mm/a ;另一个沉降中心在海埂以北的河尾村、渔户村一带地区 ,沉降中心的沉降量达 10 0 4mm (1993～ 1997年 ) ,下沉速率达到 2 5 1mm/a。

Sequence stratigraphy study shows that Dongpu Sag is an inland salt lake basin with many nearby provenances and sedimentation centers.

通过高精度层序地层学的研究,认为东濮凹陷是一个多物源、近物源、具有多个沉积沉降中心的内陆盐湖盆地。