关键词: 华南板块, 扬子古板块, 构造演化, 油气藏分布规律

Abstract: Sichuan Basin and Jianghan Basin are located in the cconomically developed South China,where carbonate rock is the thickest and distributes widest in continental China.There are many petroleum seepages in the area.The tectonic evolution history in South China is the most complex in continental China.The petroleum explorations in the area are thought to be prospective.Depending on the regularities of basin formation,timing of fault developing and distribution of folding and metamorphism,this paper has discussed the conditions of basin formation and hydrocarbon generation in South China.The effects of petroleum pool reservation condition in South China have been probed,which were resulted in by Caledonian,Indonesian and Yenshan crust formation and their reformation and superposition to previous structures.The conditions of basin formation and hydrocarbon generation are regularly changed from west to east in South China Plate.The crust movement was progressed from east to west,which reformed and destroyed the petroleum pool formation condition.All of these mean that the petroleum exploration in the area is very complicated.The characteristics mentioned above have absolutely controlled the regularities of the distribution of petroleum pools from east to west in Yangze plaeo-plate.The regularities are that Lower Paleozoic oil pools were distributed in the west of Jiangnan paleouplift,and Upper Triassic gas pools and Jurassic petroleum pools were located in Central and West Sichuan Basin.The regularities are useful to the studying and exploration of carbonate petroliferous prospect in South China.

Key words: South China Plate, Yangze Paleoplate, tectonic evolution, distribution characteristics of petroleum pools