新疆且末米特河一带叶桑岗组沉积特征及沉积环境分析

Sedimentary Characteristics and Sedimentary Environment Analysis of the Yesang Gang Formation in the Qiemomi River Area of Xinjiang

对新疆且末米特河一带叶桑岗组岩石组合特征、岩石学特征进行了详细描述,并分析该组地层的基本层序和沉积环境。通过分析研究将叶桑岗组地层分为上、下两个岩性段,下段早期为沉积环境为浅湖相,后期沉积环境由陆相逐渐向滨浅海相过渡;上段为浅海碳酸盐岩岩滩沉积,总体而言该地层沉积环境属湖相-滨浅海相沉积。

This paper provides a detailed description of the rock composition and petrological characteristics of the Yesang Gang Formation in the Qiemomi River area of Xinjiang,and analyzes the basic sequence and sedimentary environment of the formation.Through analysis and research,the Yesang Gang Formation is divided into two lithological segments:upper and lower,In the early stage of the lower section,the sedimentary environment was shallow lacustrine,and in the later stage,the sedimentary environment gradually transitioned from terrestrial to coastal shallow marine;The upper section is a shallow marine carbonate rock beach deposit,and overall,the sedimentary environment of this formation belongs to lacustrine shoreline shallow marine facies sedimentation.