摘要
安徽巢县马家山三叠系剖面因其特殊的古构造和古地理位置,在下扬子区域层序地层研究中处于重要位置。本文在沉积学、旋回分析和生态地层学等综合分析的基础上,结合下扬子区区域层序地层的发展特点,总结了该剖面下三叠统层序发育型式、发育特点及其演变过程。
Because of the significant paleo tectonic and paleogeographic position,the Triassic section of Chaoxian, Anhui is of great importance in study of the regional sequence stratigraphy of the Lower Yangtze. Based on the integrated analysis of sedimentology, cyclostratigraphy, ecostratigraphy and the related sciences and referring to the features of the regional sequence stratigraphical pattern of the Lower Yangtze, this paper summarized the sequence stratigraphy of the section, including the structural pattern and characteristics of the sequences and the development. In addition, the principal methods to study outcrop sequence stratigraphy of the individual sections have been mentioned in the light of the study of this section.
基金
国家科委八五重大基础性研究项目
关键词
地层
层序地层
下三叠统
灰岩
泥岩
outcrop sequence stratigraphy limestone marl alternation cycles Lower Triassic Chaoxian Anhui