magma source造句

The southern hainan mafic dykes are strongly enriched in lile with high nb / ta ratios , indicating a magma source reconstructed by silicic - melt through partial melting of ancient subducted slides . however , the northern hainan mafic dykes with chondritic nb / ta ratio should be derived from the fiuid - metasomatized mantle related to ancient subduction zone
琼南基性岩脉强烈富k _ 2o等lile和具有较高nb ta比值，其地幔源区应受到了古俯冲板片部分熔融形成的硅质熔体的改造；而琼中基性岩脉的nb ta比值接近于球粒陨石和morb值，应为古俯冲带含水流体交代的地幔源区的产物。
The paper based on synthesize domestic and foreign ' s study achievement about basalt , systematical review basalt research history , present condition about basalt formation contributing factor and it ' s magma source area quality , uses the basalt to distinguish the earth ' s mantle type , the connection basaltic magma evolution and continent dynamics , and uses the basalt to distinguish tectonic environment
系统地综述了玄武岩的成因和岩浆源区性质、利用玄武岩判别地幔类型、玄武质岩浆的演化与大陆动力学关系，以及判别构造环境等方面研究的现状。
It's difficult to find magma source in a sentence. 用magma source造句挺难的