tholeiite

The REE of calc-alkali basalt and tholeiite are characterized by lower amounts of REE and LREE-depleted distribution pattern and which reflect that the basalts were formed by the partial melting of LREE-depleted and slightly HREE-rich mantle.

钙碱性玄武岩系列和拉斑玄武岩系列玄武岩具有低的REE含量和亏损的LREE配分型式，表明它是由LREE亏损和HREE略有富集的地幔部分熔融形成；

The komatiite displays a geochemical trend from ultramafic to mafic, and the tholeiite shows a geochemical trend from rich Mg to rich Fe. The felsic igneous rock overlying the komatiite series displays a calc alkaline trend.

科马提岩显示了从超镁铁质到镁铁质地球化学趋势，拉斑玄武岩具有从富镁到富铁的趋势，而上覆长英质火山岩则遵循钙-碱趋势。

The basic, intermediate, acidic lava-and associated volcaniclastic rock are of widespread occurence, which are dominanted by tholeiite, alkali-lime and alkaline volcanic series, and some ultra-alkaline volcanic rock.

基性、中性、酸性熔岩和火山碎屑岩均有，以拉斑玄武岩、钙碱性火山岩和碱性火山岩系列为主，极少量过碱性火山岩。