Discovery of Late Triassic Coral Fossils at the Guoganjianian Mountain in the Qiangtang Central Uplift, North Tibet and Its Geological Significances

• 责任者：Ji Zhansheng (Institute of Geology ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Yao Jianxin
• 刊名：Acta Geologica Sinica
• 出版年：2010
• 卷期：84(8)
• 关键词：珊瑚纲 ; Anthozoa ; 晚三叠世 ; Upper Triassic ; 羌塘盆地 ; Qiangtang Basin
• 页码：p.1095-1104
• 图表：3 illus., 1 table, 50 refs.
• 分类号：1200
• issnNo：ISSN0001-5717
• isbnNo：CN11-1951/P

Coral fossils were first found at the north slope of the Guoganjianian Mountain in the Qiangtang central uplift in the north Tibet. The coral fossils were identified to be 8 genus and 10 species. The limestone yielding the coral fossils was previously thought to be the Paleozoic by the lithostratigraphic correlation, and was treated as exotic blocks jumbling in the Late Triassic Wanghuling Formation clasolite. However, the coral fossils indicated the limestone was rather the Late Triassic than the Palaeozoic in age, therefore, the Late Triassic sediments in the Guoganjianian Mountain area comprised not only the Wanghuling Formation clasolite but also the interbedded limestone among the Wanghuling Formation clasolite. It doesn’t exist the tectonic phenomenon that the Paleozoic limestone was jumbled in the Late Triassic clastic sediments.