西藏南部岗巴地区早白垩世有孔虫化石组合  

THE EARLY CRETACEOUS FORAMINIFERAL ASSEMBLAGES IN GAMBA AREA,SOUTHERN TIBET,CHINA

作　　者：陈蒲礼[1] 黄诚[1] 

机构地区：[1]中国石化西北油田分公司勘探开发研究院,新疆乌鲁木齐830011

出　　处：《微体古生物学报》2013年第3期305-309,共5页Acta Micropalaeontologica Sinica

摘　　要：前人已经在特提斯喜马拉雅南亚带建立了较为系统的生物地层序列。其中晚白垩世生物地层序列较为完整,而早白垩世生物地层序列还很不完整。本文研究的强东剖面是在岗巴地区所测的一个新剖面,笔者对该剖面中的有孔虫化石进行了详细的研究,确定了特提斯喜马拉雅南亚带早白垩世的两个化石组合,分别是Ticinella roberti-Hedbergella trocoidea组合和Globigerinelloides algeriana-Hedbergella gorbachikae组合,进一步完善了特提斯喜马拉雅南亚带早白垩世生物地层序列。A systematic biological stratigraphic sequence of the Tethys in South Asia Belt of the Himalaya had been established by the predecessors. The sequence is more complete for the Late Cretaceous than the Early Cretaceous. The Qiangdong section of Gamba,southern Tibet was firstly studied in this work which focused on the foraminiferal biostratigraphy. Aboundant foraminiferal fossils were gained from this section and two foraminiferal assemblages were recognized which includes Ticinella roberti-Hedbergella trocoidea assemblage and Globigerinelloides algeriana-Hed bergella gorbachikae assemblage. This work further improves the Early Cretaceous biostratigraphic sequence of the Himalaya South subzone of Tethyan.

关 键 词：有孔虫化石组合 早白垩世 特提斯喜马拉雅南亚带 岗巴地区 西藏南部 

分 类 号：Q915.2[天文地球—古生物学与地层学]