- 责任者：Wang Ruihua (Chengdu Center of China Geological Survey ; Chengdu 610082 ; China) ; Tan Qinyin
- 刊名：Earth Science Frontiers
- 出版年：2011
- 卷期：18(3)
- 关键词：地幔柱 ; plumes ; 沉积演化 ; sedimentary evolution ; 构造演化 ; structural evolution ; 扬子地区 ; Yangtze Region
- 页码：p.201-210
- 图表：18 illus., 18 refs.
- 分类号：0300
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
In the Middle-Late Permian, a large scale of mantle plume event in Emeishan took place in the Upper-Yangtze region and the volcanic product of the event was Emeishan Basalt. The sedimentary-tectonic evolution of mantle plume in Emeishan, and sedimentary characteristics and sedimentary responses of volcanic activity were studied. Mantle plume in Emeishan is considered to have undergone the stages of deep magmatic activity, volcanic dome, volcanic eruption, crustal subsidence, etc. The lump limestones of Maokou Formation and their characteristics are the results of syngenetic deposit sliding, the flints of Maokou Formation-Changxing Formation are hydrothermal deposits of magmatic differentiation, and the mud and megaclast in the Maokou Formation is the result of storm deposit. Disorderly deposits of Maokou Formation and Wujiaping Formation are related to earthquake activities, which may be called seismite.