magma basalt

Ultrabasic rock alkali olivine basalt magma

超碱岩，超基性岩碱性橄榄玄武岩岩浆

The basic volcanic rocks of the first cycle belong to the alkali basalt magma series and those of the second and the third cycles the tholeiitic magma series.

第一旋回基性火山岩属碱性系列，第二、三旋回基性火山岩属拉斑玄武岩系列。

The other is nephelinite magma-alkaline picritic basalt magma, which are generated by partial melting of the garnet Iherzolite.

另一个是源岩为石榴石二辉橄榄岩，随着局部熔融程度的增加形成的霞石岩岩浆-碱性苦橄玄武岩系列。

The isotopic ratios in the basalt are restricted not only by the characteristics of the mantle providing primary magma of basalt, but also by partial melting degree of the mantle.

玄武岩同位素的比值不仅受玄武岩浆地幔源区本身的特征制约，还可能受地幔岩部分熔融程度的制约。

Alkali olivine basalt magma

碱性橄榄玄武岩岩浆