The metaperidotite unit is mainly composed of harzburgite and lherzolite together with minor dunite and plagio-lherzolite.

• 各单元的岩石组合是多种多样的：变质橄榄岩单元主要由方辉橄榄岩、二辉橄榄岩和少量纯橄岩及斜长二辉橄榄岩组成；