It was noted that the Upper Mesozoic strata (mainly Cretaceous) as revealed by drill or dredge from the eastern Nansha waters might extend into the hinterland of the Nansha Waters.
It was noted that the Upper Mesozoic strata (mainly Cretaceous) as revealed by drill or dredge from the eastern Nansha waters might extend into the hinterland of the Nansha Waters.
南海裂谷期间形成的下第三系具有明显的裂谷充填特徵，其构成生油岩主体。