THE DISCOVERY OF TOURNAISIAN IN THE MT.AMUNIKE OF THE NORTH-EASTERN QAIDAM BASIN,WITH A DISCUSSION ON THE DIVISION OFTHE LOWER CARBONIFEROUS IN THE MT.OULONGBULUKE

Early Carboniforous brachiopodas and corals are first found in the Mt. Amunike and the Mt.Oulongbuluke of the North-Eastern Qaidam basin.Thery are Rhytiophora arcuata-Syringothyris hall,Rhipidomella altaica-Syringothyris texta,Kassinella amunikensis-Iophophyllum densum and Enygmophyllum- Kakwiphyllum qinghaiense.These discoveries indicate that the Tournaisian extend to the North-Eastern of the Qaidam Basin,and the Tournaisian in the Chuanshangou Valley of the Mr.Amunike is named"Chuanshangou System". The term "Holt Taria"for Visean stage beds exposed in the Mr.Oulongbu- luke of the West-Southere Holt Taria area is continued to use.