There had been a great active volcano in mid-yanshan cycle in Xiangshan

Jiangxi Province. The action of volcano has been divided into two cycles

namely Daguding and Ehuling basis on the time and feather of magmatic activities. The volcano rock of Daguding formation formed in the early cycle of volcano action mainly crop out in the northwestern margin of the basin. The feature of the volcano active and distribution of the volcanic edifice of the Daguding cycle have not had an unified understanding by far because it had been damaged by late lava activate and covered by the upper volcano rock of Ehuling formation. Based on the interpretation of remote sensing and analysis of existing drilling data

the distribution of ancient crater and volcanic channels of the volcanic edifice of the Daguding cycle and the eruption pattern of volcanic have been proposed in the paper through surveying on the lava distribution and occurrence of Daguding formation and statistics the distribution of volcano clastic rocks and brecciate. This study provides materials for the research on the evolution of Xiangshan volcanic basin.