吐哈盆地西南部侏罗系时代划分  

Division of Jurassic Strata in Southwestern Part of Turpan-Hami Basin

作　　者：杨殿忠[1] 

机构地区：[1]核工业北京地质研究院,北京100029

出　　处：《新疆石油地质》2002年第5期385-388,共4页Xinjiang Petroleum Geology

摘　　要：研究了采自吐哈盆地西南部早、中侏罗世的植物化石,在鉴定其种属的基础上,结合岩石地层学和层序地层学方法,描述了早、中侏罗世的植物组合特征,对其地层时代进行了新的厘定,提出了新的地层划分方案。新的划分方案不同于前人的划分结果,新方案一方面依据了新采集的植物化石资料,同时考虑到了野外实际工作的可操作性。此外,还提出了根据煤层发育程度、生物化石群、不整合面和岩性等特征,识别标志层的方法。The plant fossils of the Early and Middle Jurassic in southwestern part of Turpan-Hami basin are stud-ied.On the basis of these fossils,combining with rock stratigraphy and sequence stratigraphy,the characteristics of Ear-ly and Middle Jurassic plant assemblage are described,the new strata division is made,and new division project is pro- posed herein,based on these new plant fossil materials and taking into account for easy operation in the field.Also,this paper presents marker bed feature and recognition method for coal seam,bio-fossil group,unconformity and lithology,etc.

关 键 词：吐哈盆地 侏罗系 地层划分 植物 化石 岩石地层学 层序地层学 

分 类 号：P534.52[天文地球—古生物学与地层学]