CHARACTERISTICS OF BASIN EVOLUTION AND HYDROCARBON RESPONSE IN MIDDLE YANGTZE REGION SINCE NANHUA PERIOD

This artical analysed the basin evolution since Nanhua period in the Middle Yangtze region,and pointed out it undergo Caledonian,Hercynian-Early Yanshanian and Late Yanshanian-Himalayan three basin-mountain evolution cycle,rearched the response characteristics of hydrocarbon to basin evolution.The development characteristics and controlling factors of sourse rocks and reservoir rocks,and the control of paleouplift to hydrocarbon were analysed.Before Early Indosinian period,hydrocarbon migration were controlled by paleouplift.Parallel migration were main manner,and hydrocarbon were accumulated.In Late Indosinian-Early Himalayan period,the hydrocarbon were mainly destroied and regulated.The short range vertical migration were main manner.Hydrocarbon accumlation were finalizd in Late Himalayan period.