玄武质地壳

galactic cluster───银河星团

galactic clusters───银河星团

Celtic cross───凯尔特十字架（外围为轮形，中为交叉肢体）

basaltic───adj.[岩]玄武岩的

basic dress───基本款连衣裙

brain trust───智囊团

public trust───公益信托；[金融]公共信托

The evidences indicate that the magmas are formed by melting of pyrolite and eclogite (ancient basaltic oceanic crust) in the axial zone of mantle plume.───这说明它们是在地幔柱轴部，由地幔岩和榴辉岩(古玄武质洋壳)组成的源区产生的岩浆形成的。

existence of recycled basaltic oceanic crust in the axial zone of mantle plume may be the key of the formation of giant V-Ti-magnetite deposits.───再循环玄武质洋壳的存在可能是该区超大型钒钛磁铁矿床形成的根本原因。