The lower zone and the bronzite of the transition zone may be compared with the basal zone of the still-water complex .
下岩带和过渡带的古铜辉岩可与斯蒂尔沃特杂岩的基底岩带相比。
This expulsion process of geopressured system is episodic and generally forms big oil field or gas field in the transition zone of pressure and normal pressure zone in geopressured basin.