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以详细的露头层序地层研究为基础, 概述了塔里木地台北部寒武纪-奥陶纪的层序地层系统. 该系统以不同级别的层序为基本单元所构成, 包括35个三级层序, 12个超层序, 4个超层序组和2个巨层序. 同时, 结合地震剖面和钻井资料, 对其中的重要层序界面特征进行了讨论, 并通过生物地层与层序地层相结合的方法, 标定了重要层序界面的年龄. 通过对塔里木地台寒武纪—奥陶纪层序地层与扬子地台和华北地台同期层序地层的对比研究发现, 其间有较好的对应关系. 说明寒武纪—奥陶纪时中国三大地台上碳酸盐岩层序的发育主要受控于大区域和全球性的海平面变化. 这为在我国三大地台区寒武系—奥陶系中开展以层序地层学为基础的高分辨率年代地层体制研究提供了理论支持.
Based on the detailed study of outcrop sequence stratigraphy, the Cambrian-Ordovician sequence stratigraphic system in the northern part of the Tarim platform is summarized. The system consists of basic units of different levels, including 35 third-level strata Sequence, 12 super-sequence sequences, 4 super-sequence sequence sequences and 2 giant sequence sequences.At the same time, with the seismic data and drilling data, the interface features of important sequences are discussed, and through the biological stratigraphy and sequence stratigraphy , The age of the important sequence boundaries is calibrated.Comparison of Cambrian-Ordovician sequence stratigraphy with the sequence stratigraphy of the Yangtze platform and the North China platform in the Tarim Basin shows that there is a good comparison The relationship between the Cambrian-Ordovician carbonate sequences in the three major terraces in China is mainly controlled by the large-scale regional and global sea level changes, It provides theoretical support for the study of the stratigraphic system based on high-resolution chronostratigraphy.