TECTONIC EVOLUTION AND OIL-GAS POTENTIAL OF BASINS IN CENTRAL ASIA AND NORTHWESTERN CHINA

Wang Suhua; Qian Xianglin

doi:10.11743/ogg19990411

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TECTONIC EVOLUTION AND OIL-GAS POTENTIAL OF BASINS IN CENTRAL ASIA AND NORTHWESTERN CHINA
Vol. 20, Issue 4, Pages: 321-325(1999)
Online First：25 December 1999，

Published：1999
DOI： 10.11743/ogg19990411
稿件说明：

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DOI：

Wang Suhua, Qian Xianglin. TECTONIC EVOLUTION AND OIL-GAS POTENTIAL OF BASINS IN CENTRAL ASIA AND NORTHWESTERN CHINA[J]. 1999, 20(4): 321-325. DOI： 10.11743/ogg19990411.

摘要

中亚及中国西北地区中生代以来就一直处于欧亚大陆的南缘。侏罗纪以来两地区经历了相似的构造演化

即侏罗纪-老第三纪的伸展构造阶段和新第三纪-第四纪的挤压构造阶段。始新世以来由于受印度板块和古欧亚板块陆陆碰撞挤压并持续向北推移的影响

形成了现今中亚及中国西北地区的盆山构造格局。中亚及中国西北地区贫地油气资源丰富

成藏条件优越。各盆地受后期改造程度不同

前陆冲断带是这些盆地山前带共有的构造特征

盆地内部构造差异大

新构造对油气的储集具有重要影响。

Abstract

Both Central Asia and Northwestern China were located in the south margin of Eurasian Continent in Mesozoic. Since Jurassic

they both have experienced similar tectonic evolution

i. e. the extension tectonics in JurassicPaleogene and compressive tectonics in Neogene-Quaternary. The collision of Indian Plate with Paleo-Eurasian Plate resulted in present style of mountain-intercalated basins. The basins possess rich oil and gas resources

favourable poolforming conditions and different post-reformtion. Foreland thrust belts are common structural features in piedmonts of the basins

but their internal structures are varied greatly. Neotectonisms influence strongly on oil-gas accumulation.