- 责任者：Wu Yaodong (Institute of Sedimentary Geology ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Jiang Laili
- 刊名：Journal of Chengdu University of Technology
- 出版年：2009
- 卷期：36(1)
- 关键词：泥盆纪 ; Devonian ; 三叠纪 ; Triassic ; 安徽 ; Anhui
- 页码：p.19-28
- 图表：1 illus., 32 refs.
- 分类号：1200
- issnNo：ISSN1671-9727
- isbnNo：CN51-1634/N
This paper studies the stratigraphic sections of the Devonian-Triassic stratigraphic outcrops and their sedimentary environments and facies in the Susong-Dongzhi zone of Anhui by using the theory and research approach of sequence stratigraphy on the basis of the 1∶250 000 regional geological survey. It also divides the depositional sequences and system tracts and discusses the nature of the boundary, type, and characteristics sequences. The Devonian-Triassic strata can be divided into one first-order sequence, five second-order sequences and twenty-nine third-order sequence sets. The former two show a general trend of change in facies succession from shallow to deep and back to shallow up-section, coincident with the curve of sea-level fluctuation. The sea-level fluctuation of the last one is commonly controlled by tectonism, sea-level change and glaciation.