关键词: 多旋回构造运动, 油气系统, 历史—成因分类法, 志留系—石炭系

Abstract: The introduction of petroleum system is an important advance of petroleum geology in 90'.But its concepts and genetic clasaification widely used overseas are not applicable for analyzing the region of polycyclic movement,and factors such as multiphase pool-forming,paulopast pool-forming and vertical mixing source should be revised in this case.In this paper,a historic-genetic classification of petroleum system is put forward in view of the special feature of marine sequences in South China.In the region which has undergone polycyclic tectonic movements,it is necessary to divide petroleum systems of primary basin genetically,analyze dynamic changes after the formation evoluted,and then determine operative types of petroleum system based on regional geological characteristics.The Silurian-Carboniferous petroleum system in South China is taken as case study.

Key words: polycyclic tectonic movement, petroleum system, historic-genetic classification, Silurian-Carboniferous