地质论评2009，Vol.55Issue(4)：521-530,10.
塔里木盆地塔中低凸起古构造演化与变形特征
Paleo-tectonic Evolution and Deformation Features of the Lower Uplift in the Central Tarim Basin
摘要
Abstract
After analyzing the regional geology and the seismic interpretation, the writers make conclusions that structural geologic evolution from extension to compression in the Southern-Central Tarim basin during early Paleozoic was controlled by the plate tectonic of southern margin of the Tarim plate. Extension and rift structure occurred in the northern margin of Central Tarim Basin under the control of extension in passive continent margin during Cambrian to Early Ordovician; It was a forebulge in the Central Tarim Basin after closure of the north Kunlun ocean in Middle Ordovician; the thrust nappe and strike deformation from Late Ordovician to Devonian is the main structural features which were kept up to now. The foreland thrust deformation, which propagated from southeast to northwest in Late Ordovician, result in the formation of the arc shaped fault systems of Tangbei fault-south margin fault-No. 5 fault of central Tarim basin and formation of the strik-slip fault system in central-western section of the lower uplift of the central Tarim Basin, which is oblique intersecting with the fault No. 1. The propagation of thrust displace is along two detachment layer. One is the evaporite rocks bed in the Cambrian, the other one is the ductile layer in the middle crust. The main structural style is fault propagation fold and wedge structure in the east segment of fault No. 1. The main style is flower structure of strike faults system which like a broom on the plane distribution in the west segment of fault No. 1. The ancient structural evolution and deformation features, structural style, structure formation cause and the fault system in the Central Tarim Basin are main structural geological features in the depth of superimposition Cratonic basin.关键词
塔中低凸起/构造演化/构造变形特征/构造成因/构造断裂体系/塔里木盆地Key words
central Tarim Basin/ Structural geologic evolution? Deformation features/ structural cause/ fault system分类
天文与地球科学引用本文复制引用
李本亮,管树巍,李传新,邬光辉,杨海军,韩剑发,罗春树,苗继军..塔里木盆地塔中低凸起古构造演化与变形特征[J].地质论评,2009,55(4):521-530,10.基金项目
本文为"中西部叠合盆地构造演化与油气晚期成藏规律"(编号0701C0101)和"中西部前陆盆地构造地质与沉积储层特征"(编号2008ZX05003-001)项目资助成果. （编号0701C0101）
