Features and Formation Time of Mangxiang Formation in Duosang Graben of Ngangla
详细信息
- 责任者：Wang Hui (Sedimentary Institute of Chengdu University of Technology ; Chengdu 610059 ; China) ; Zhao Bing
- 刊名：Geological Bulletin of China
- 出版年：2010
- 卷期：29(4)
- 关键词：沉积相 ; sedimentary facies ; 中新世 ; Miocene ; 西藏 ; Tibet
- 页码：p.544-548
- 图表：4 illus., 4 refs.
- 分类号：1200
- issnNo：ISSN1671-2552
- isbnNo：CN11-4648/P
摘要
Mangxiang Formation section in Duosang graben of Ngangla Ringco area is described in details. Lithological characteristics, stratigraphic contact relationship and sedimentary environment are also discussed. It is recognized that Mangxiang Formation in Duosang graben are composed of fluvialfan, river and lake facies from bottom to top and the strata make up a whole sedimentary cycle. Its source area is mainly from the horst of eastern Duosang graben. Some fossils of bivalve and plants were discovered in Mangxiang Formation of Duosang graben.