Effect of Emeishan Mantle Plume over the Sedimentary Pattern of Mid-Permian Xixia Period in Sichuan Basin
详细信息
- 责任者：Zhang Tingshan (State Key Lab.of Oil & Gas Reseavoir Geology and Exploitation Engineering ; Chengdu 610500 ; China) ; Chen Xiaohui
- 刊名：Acta Geologica Sinica
- 出版年：2011
- 卷期：85(8)
- 关键词：地幔柱 ; plumes ; 沉积相 ; sedimentary facies ; 峨眉山 ; Mount Emei
- 页码：p.1251-1264
- 图表：7 illus., 2 plates, 1 table, 55 refs.
- 分类号：0400
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
摘要
///This paper discussed effects of the Emei Mountains plume activity on sedimentary paleographical features and sedimentary-facies distribution during the Xixia period of Mid-Permian. The studying area is a sub-facies open-platform developing area, located at the higher part of the submarine dome-shaped area in the southwestern Upper Yangtze platform, and gradually transformed eastward and northeastward into the ramp-facies developing area. The paleogeographical pattern and sedimentary facies distribution during the Xixia period in this area can be regarded as the early developing stage from carbonate ramp to platform, which provides part evidence for the activity of the Emei Mountains mantle plume.