The Heavy Minerals and Provenances of the Upper Triassic Xujiahe Formation in Sichuan Basin
详细信息
- 责任者：Shi Zhensheng (China University of Mining and Technology ; Beijing 100083 ; China) ; Wang Xiuqin
- 刊名：Natural Gas Geoscience
- 出版年：2011
- 卷期：22(4)
- 关键词：物源区 ; provenance ; 物源分析 ; provenance analysis ; 四川盆地 ; Sichuan Basin
- 页码：p.618-627
- 图表：4 illus., 1 table, 31 refs.
- 分类号：0803
- 出版序号：887
- issnNo：ISSN1672-1926
- isbnNo：CN62-1177/TE
摘要
///Hyperstable heavy minerals with little diversity in different members were dominated in the Upper Triassic Xujiahe Formation of Sichuan Basin. Based on tectonic belt and sedimentology of previous research, the Longmenshan fold belt begin to form at Late Triassic Period. At the second phase of Ukiah Formation, the northern section of Longmenshan had been exposed and eroded, but the southern section was still underwater or not yet uplifted. At the fourth phase, the northern section of Longmenshan continued uplift and suffered erosion, whereas the southern section started uplift and erosion and provided the sediments toward the basin. At the sixth phase, the Longmenshan was uplifted fully and provided sediments to the basin.