摘要
在首次发现西拉木伦河南岸上、下二叠统之间存在角度不整合面的基础上 ,利用最新资料重新厘定上二叠统铁营子组。在系统分析岩石特征、基本层序特征、古生物化石、沉积构造的基础上 ,确认了其沉积环境为内陆山间河流——湖泊。依据铁营子组与下伏地层及侵入岩的接触关系、采获的植物化石、砾石成分及来源判断 ,其沉积时代为晚二叠世。
Based on founding the angular unconformity between upper and Lower Permian system in the south bank on Xilamulun River, Tieyingzi formation is resumpted with latest information. The sedimental environment is considered as old area according to a systematic study on characteristic of the rock and the basic sequence and the fossil and sedimental structure. The age of sedimentary was upper Permian deduced by relationship of lontaction and collecting plant’s fossil and source in composition of gravel.
出处
《内蒙古地质》
2001年第1期4-7,共4页
Geology of Inner Mongolia
关键词
铁营子组
沉积环境
铁营子盆地
Tieyingzi formation
sedimental environment
Tieyingzi’s basin
