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塔里木盆地大坂塔格—一间房奥陶系剖面自下而上可划分为蓬莱坝组、鹰山组、一间房组、吐木休克组和良里塔格组,下与寒武系下丘里塔格组整合接触,顶部出露不全,为第四系覆盖。该剖面由下至上可以识别出6个三级层序,每个层序由海侵体系域和高水位体系域构成,缺少低水位体系域,密集段由深灰色—灰色泥质灰岩、泥晶灰岩等组成。碳酸盐台地为本区典型沉积,海平面升降变化是控制该区沉积相发育和分布的主要因素。
Tarim Basin Tabas - a room Ordovician section from bottom to top can be divided into the Penglai Dam group, Yingshan Formation, Yichangfang Formation, Tumu Shike Formation and Lianglitage Formation, under the Cambrian and the lower hill Litetag group integration contact, the top of the exposed incomplete, for the Quaternary coverage. There are 6 third-order sequences from the bottom to the top of the profile. Each sequence consists of transgressive system tract and high-water system tract, lack of low-level system tract, and dense section consists of dark gray-gray mudstone, mud Crystal limestone and other components. The carbonate platform is a typical deposition in this area. The sea level fluctuation is the main factor that controls the sedimentary facies development and distribution in this area.