The framwork of the stratigraphy sequence is established,based on that the sequence stratigraphy and its internal composition have been recognized through drawing up the sections and planimetric maps.

• 在此基础上编制以准层序为基本单位的富煤单元图和砂分散体系图,对研究区潮坪沉积体系煤聚积规律进行了分析。