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塔里木盆地中部在早奥陶世属被极浅水覆盖的克拉通地区，以发育大量的潮间带、潮上带和潮下带沉积物为特征，岩性为各类白云岩、灰岩及它们之间的过渡类型。发育沉积水体的多旋回的向上变浅序列，是潮坪向海进积作用和台地碳酸盐沉积对海平面变化的响应。其早奥陶世的沉积演化分为两个阶段，早奥陶世早期塔中地区具有广阔的碳酸盐台地沉积范围，早奥陶世中、晚期，塔中Ⅰ号断层东侧的台地发生断陷、沉没，发育断阶式跌积型陡斜坡，台地范围退缩。
The middle Tarim basin is characterized by the development of a large number of intertidal zone, tidal zone and subtidal sediments in the Early Ordovician craton region covered by very shallow water with lithologies of various types of dolomite, limestone and their The type of transition between. The polycyclic uplifted sequence of developing sedimentary water bodies is the response of tidal flat to sea accretion and platform carbonate deposition to sea level change. The sedimentary evolution of the Early Ordovician was divided into two stages. Early Middle Ordovician had a wide range of carbonate platform deposition in the Tazhong area. During the middle and late Early Ordovician, the platform on the east of Tazhong Ⅰ fault , Sinking, the development of steep slopes of steep slopes, terrace range retreat.