在变质岩研究的领域里,恢复变质前原岩的问题愈来愈显得重要了。恢复变质岩原岩的方法很多,有岩石矿物方法,岩石化学方法,地球化学方法等。其中岩石化学方法在目前来说是比较成熟的,而且适用范围也比较广泛。在国内外有关资料中,常见的恢复变质岩原岩的岩石化学方法有数十种之多。这些方法是不同的地质学者,依据不同地区的岩石化学资料,针对不同的问题而提出来的,因而其可靠程度及适用范围自然是不相同的。这样就会在选用恢复变质岩原岩的岩石化学方法时无所适从。常常有人认为多用一些方法互相比较,效果可能会好一些,其 In the field of metamorphic research, the restoration of metamorphic rock is more and more important. There are many ways to restore metamorphic rock protoliths, such as rock mineralogy, petrochemical methods and geochemical methods. The petrochemical method is relatively mature at present, and the applicable scope is also wider. In the relevant data at home and abroad, there are dozens of petrochemical methods for the restoration of metamorphic rocks. These methods are different geologists, according to different areas of petrochemical data for different problems raised, so its reliability and scope of application is naturally not the same. This will be in the choice of recovery of metamorphic rock rock petrochemical method at a loss. Some people often think that more ways to compare with each other, the effect may be better, its