在南越大陆架结晶基底的断层附近发现了油饱和花岗岩，这些花岗岩具有特征的热液交代作用和淋滤晕矿物共生组合。自然银、重晶石、含锌、铜和铁的氯化物的存在表明，矿化流体为深部成因。这些热液蚀变花岗岩是一种可能的新型油、气储集层，这将会大为拓宽油、气勘探的领域。 Oil-saturated granites have been discovered near the fault of the crystalline basement of the South Vietnam continental shelf. These granites have the characteristic hydrothermal metasomatism and leaching halo mineral assemblage. The presence of natural silver, barite, zinc, copper and iron chlorides suggests that mineralized fluids are deep causations. These hydrothermal alteration granites are a possible new oil and gas reservoir, which will greatly expand the field of oil and gas exploration.