There are three main melting regimes in metasedimentary rocks: (1) melting at water-saturated solidus;(2) muscovite dehydration melting;and (3) biotite dehydration melting reactions.

• 变质沉积岩中的熔融作用主要有三种机制：饱和水固相线上的熔融、白云母脱水熔融和黑云母脱水熔融。