摘要
Based on previous studies,it was recognized that the abnormal pressure formation mechanism of Fukang fault belt-Beisantai area in the southern margin of Junggar Basin is mainly related to compaction of mudstone and expansion of clay minerals.This paper suggests that the continued horizontal compression resulted in forming pressure compartment in the south slope of Wuliangshan fault in Beisantai area,and the continued high pressure fluid supply along the fault and the abnormal pressure compartment are the main genesis of forming abnormal pressure.