地质通报2012，Vol.31Issue(4)：510-520,11.
青藏高原羌塘地区果干加年山-荣玛乡一带石炭纪-二叠纪古生物研究新进展
New advances in the study of Carboniferous-Permian paleontology in Guoganjianianshan-Rongma area of Qiangtang region, Tibetan Plateau
摘要
Abstract
A coral fossil Chatetes(Boswellid) heritschi Sokolov was discovered for the first time in the Zhanjin Group along the geological section between Dashahe and Guoganjianianshan in middle Qiangtang region. This discovery provides evidence of the Late Carboniferous biological age for the Zhanjin Group. However, this fossil is from the Tethyan type biota in a warm water environment and does not belong to the Gondwana cold water biota. Plenty of Middle Permian fusulinid fossils were also discovered for the first rime in the Heishishan geological section, which belongs to both Gondwana cold-water biota, as represented by Wannerophyllam and Monodiexodina, and the warm-water Tethyan type biota, as evidenced by Chusenella tieni Chen, Schwagerina sanerduoensis Nieet Song and Pseudqfusulina pseudosuni Sheng. The fossils are characterized by a mixed biota type of Gondwana and Tethyan types. It is suggested that the middle Qiangtang tectonic zone of Karakorum-Longmucuo-Shuanghu is biologically a mixed zone of Gondwana and Tethys biota in Carboniferous and Permian period, and there exists no obvious boundary of the biological region. It is thus inferred that the ocean basin represented by the Longmucuo-Shuanghu ophiolitic zone was a small marginal basin in southern Tethyan archipelago.关键词
羌塘地块/石炭纪-二叠纪/展金岩群/化石/冈瓦纳北界Key words
Qiangtang block/Carboniferous-Permian period/Zhanjin Group/fossils/northern boundary of Gondwana分类
天文与地球科学引用本文复制引用
耿全如,彭智敏,张璋..青藏高原羌塘地区果干加年山-荣玛乡一带石炭纪-二叠纪古生物研究新进展[J].地质通报,2012,31(4):510-520,11.基金项目
中国地质调查局青藏专项《班公湖-怒江成矿带基础地质综合研究》(编号:1212011086068)和《青藏高原与邻区特提斯地质对比研究》(编号:1212011121256) （编号:1212011086068）
