| 1. | It also implied that mother magma formed mafite was a residual melt trace elements distributed pattern is similar to transitional mid - ocean ridge basalt simultaneously , the pattern , which displayed a clear ( k ) . rb . ba , th , ( th ) - enriched , also can be explained as an ocean ridge environment overlappe d with mantle plume 其微量元素的分配形式类似于过渡类型的洋中脊玄武岩,同时表现出( k ) 、 rb 、 ba 、 th 、 ( ta )的明显富集,也可解释为在洋中脊环境上叠加了地幔柱的特征。 |