Integrated Analyses Constraining the Provenance of Early Cretaceous Huicheng Basin , Western Qinling Orogenic Belt
详细信息
- 责任者：Zhang Yingli (Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Wang Zongqi
- 刊名：Acta Geologica Sinica
- 出版年：2011
- 卷期：85(12)
- 关键词：物源分析 ; provenance analysis ; 早白垩世 ; Lower Cretaceous ; 秦岭 ; Qinling Mountains
- 页码：p.2014-2030
- 图表：10 illus., 2 tables, 50 refs.
- 分类号：0803
- 出版序号：20122359
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
摘要
The Tianjiaba Formation, Zhoujiawan Formation and Jishan Formation in the Early Cretaceous Huicheng Basin are glutenite sedimentary successions. Paleocurrent and conglomerate composition indicate sediments are proximal developed from the southern and northern margin. Heavy mineral analysis result suggests source rock of Early Cretaceous sandstones are predominant magmatic rocks, minor metamorphic rocks and sedimentary rocks. Geochemical data for these rocks suggest a continental island arc setting and continental active margin. Together with regional geological evidence, the sediments were deposited in a pull-apart basin.