论文部分内容阅读
运用露头层序地层学的方法，对豫西鲁山下汤和临汝罗圈震旦系剖面进行了研究，并结合区域上该地层的发育特征，初步识别出３个Ⅰ类层序．前两个层序分别与岩石地层单位黄连垛组和董家组相当，属于缓坡沉积相模式（ｒａｍｐｄｅｐｏｓｉｔｅｄｍｏｄｅｌ）；第三层序由罗圈组和东坡组组成，沉积于具陆架坡折（ｓｈｅｌｆｂｒｅａｋ）的盆地中．豫西与扬子地台震旦系层序基本可以对比
Using the method of outcrop sequence stratigraphy, the Sinian sections of Lushanxiaotang and Linruluosai in western Henan have been studied. Based on the stratigraphic characteristics of the strata in the area, three class Ⅰ sequences have been preliminarily identified. The first two sequences are respectively equivalent to the Huanglianduo Formation and the Dongjia Formation in the lithostratigraphy and belong to the rampdeposited model. The third sequence consists of the Loess and Dongpo formations, In the basin. The sequence of Sinian in western Henan and Yangtze Platform can be compared basically