柯坪块隆沉积岩系及其构造特征

本文通过沉积岩系及其构造控制因素讨论,认为柯坪块隆在古生代属于塔里木克拉通拗陷的西北缘,其沉积演化和构造演化主要与塔里木地块近似。沉积岩系有两大类型:一是稳定台地相沉积;二是滨岸咸化泻湖相、河流相和山麓相沉积,柯坪块隆及其推覆体的出现主要是在二叠纪海西运动未期,起因于南天山冒地槽褶皱隆升导致的重力扩展作用而发生的构造变形。

Sedimentary Rock System and Structure of Keipin Uplift,Talimu Basin

Through analysing the sedimentary rock system and the structural deformation, this article thinks Keipin uplift belongs to the north of Talimu craton. The major porpress of it's sediment evolution and structure evdution are identical with those of Talimu Massif. There are two major kinds of sedimentary rock system in the Keipin uplift; One of them is the steady platform facies sediment. The other is mainly made up of the cenozoic sediment, including salt seashore-legoon facies sediment, river facies and hillfoot facies. The Keipin uplift is the sturctural deformation which was set of by the gravity spreading, effect carsed by the south Tahshan thrust folded rising under the steady craton circumstance in the late Hereynian.