摘要
通过对吐哈盆地丘东洼陷及周缘露头剖面水西沟群的研究,厘定了八道湾组的含义,首次将其划分为2个岩性段;在柯柯亚剖面中识别出三工河组,并将其划分为2个岩性段。结合前人资料,建立了水西沟群的生物地层层序,其中包括3个孢粉组合、2个古植物组合、1个昆虫组合和1个叶肢介组合;在阐述了各生物化石组合的组成、分布和组合特征基础上,分析了其所代表的地质时代及其对比特征。
The implication of Badaowan Formation is redefined by studying Qiudong Depression and Shuixigou Group of periherial outcrop section in Tuha Basin. For the first time it is divided into 2 lithologic sections. Sangonghe Formation is recognized in Kekeya Section, of which 2 members are divided. In combination with the data available, bio-stratigraphic sequency is established, which includes 3 sporopollen assemblages, 2 paleobatany assemblages and 1 insect and I estheria assemblages. Based on the description of composition, distribution and assemblage characteristics of various bio-fossil assemblages, their geological carbons and correlation are analyzed.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2006年第5期24-27,共4页
Journal of Oil and Gas Technology
关键词
水西沟群
岩石地层
生物地层
吐哈盆地
Shuixigou Group
litho-stratigraphy
biostratigraphy
Tuha Basin
