Firstly Discovered Late Triassic Radiolarian Fossils in Siliceous Rocks in Dajiacuo Area, Coqen County, Tibet and Their Significance
详细信息
- 责任者：Huang Shaochun (No.915 Geology Party ; Jiangzi Bureau of Geology and Mineral Resources ; Nanchang 330002 ; China) ; Gong Chen
- 刊名：Resources Survey & Environment
- 出版年：2013
- 卷期：34(4)
- 页码：p.216-220
- issnNo：ISSN1671-4814
- isbnNo：CN32-1640/N
摘要
A set of strata consist of purple quartz sandstone, calcareous siltstone, bioclastic micrite and radiolari- an-bearing siliceous rocks are discovered in Dajiacuo area, Coqen county, Tibet. The late Triassic Carnian- Norian radiolarian Group Pseudostylosphaera sp. , Perispongidium cf. tethys De Wever in siliceous rocks are firstly identified in this paper, having an important significance for studying on the stratigraphic division and geological tectonic evolution of Jiadacuo area in the west of Gangdise.