THE GEOLOGICAL STRUCTURE OF THE XIEFENG MOUNTAINS-YUANMA BASIN AND ITS SIGNIFICANCE TO OIL EXPLORATION

To study the relationship among mountain system, basin and hydrocarbon is an important (element) in hydrocarbon-bearing basin analysis.The Xiefeng mountain system and the Yuanma basin have been controlled by "intraplate deformation" dynamic condition since the Meso-Cenozoic, and the‘basinmounfain sysfem' wes formed. The orogenic compressional activity controlled basional structural (sedimentary) pattern and petroleum system resulted in ‘structural reversion' of the basin and damage or re-organization of hydrocarbon accumulation. It is very important to study the ‘mountain system-basin-hydrcoarbon' system of the area to evaluate and explore for oil and gas in the continental basins of the South China.