火山岩的元素地球化学特征反映岩浆来自富集地幔，在源区存在陆壳的混染作用。
The element-geochemical features reflect that the magma comes from enriched mantle and that hybridism of continental crust occurs in the source area.
氧同位素的变化可能是结晶作用、去气作用或地壳物质混染所至。
Oxygen isotope variation maybe results from crystallization, degasification or hybridization of crust materials.
成岩作用是分离结晶和同化混染联合作用。
成岩作用是分离结晶和同化混染联合作用。
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