新疆三塘湖盆地二叠系芦草沟组古生态环境  

Palaeoecological Environment of Permian Lucaogou Formation of Santanghu Basin in Xinjiang

作　　者：齐雪峰[1,2] 何云生[3] 赵亮[4] 蒋俊超[2] 

机构地区：[1]中国地质大学能源学院,北京100083 [2]中国石油勘探开发研究院,北京100083 [3]中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依834000 [4]长江大学地球科学学院,湖北荆州434023

出　　处：《新疆石油地质》2013年第6期623-626,共4页Xinjiang Petroleum Geology

基　　金：国家科技重大专项(2011ZX05008)

摘　　要：新疆三塘湖盆地中二叠统芦草沟组动物群以半咸水类型古鳕类和介形类Tomiella-Kelameilia-Panxiania组合为主体,纵向上与海相化石交替出现,反映了典型的陆缘近海湖泊环境。古植物和孢粉化石组合反映了安加拉植物群面貌,代表温湿气候背景。陆缘近海湖泊环境使水生生物群呈现多样性发展并异常繁盛,为芦草沟组优质生油岩的形成提供了生态环境保证。The fauna of Lucaogou formation of Middle Permian in Santanghu basin is dominated by Tomiella-Kelameilia-Panxiania combi- nation of brackish palaeoniscoid and ostracoda, which occur alternatively with the marine fossils vertically, reflecting a typical epicontinen- tal lake environment of paralic facies. The fossil plants and sporopollen assemblage reflect the features of Angara flora, representing the warm-humid climate background. The epicontinental lake environment of paralic facies enabled the diversified development and unusual flourishing of aquatic biota, thus providing material foundation for formation of premium oil source rocks of the Lncaogou formation.

关 键 词：新疆 三塘湖盆地 芦草沟组 古生态 陆缘近海湖泊 

分 类 号：TE112.113[石油与天然气工程—油气勘探]