CN; mso-bidi-language: AR-SA">The Composition and Distribution of Organic Matter of the Cretaceous Black and Red Bed Sediments from Southern Tibet
详细信息
- 责任者：Fu Peigang (State Key Laboratory of Organic Geochemistry ; Guangzhou Institute of Geochemistry ; Chinese Academy of Sciences ; Guangzhou ; Guangdong 510640 ; China) ; Song Zhiguang
- 刊名：Acta Geologica Sinica
- 出版年：2008
- 卷期：82(1)
- 关键词：沉积岩 ; sedimentary rocks ; 有机质丰度 ; organic material abundance ; 西藏 ; Tibet
- 页码：p.85-91
- 图表：4 illus., 4 tables, 37 refs.
- 分类号：0803
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
摘要
The organic geochemistry study on the black and red-beds of Cretaceous sediments from Chuangde section of Gyangzê in southern Tibet shows that the Organic carbon content of black beds is 5 to 10 times that of red beds, the predominant carbon number of the normal alkane in the black and red bed sediments are nC23 and nC25, respectively; The parent organic matter of both black and red beds was predominantly aquatic plants, and algae and bacteria with minor being terrestrial matter.