They were formed by mixing of the partial melting granitic magma of crust-derived material and mantle-derived basic magma.
岩石主要由幔源岩浆与中下地壳物质部分熔融形成的花岗质岩浆的混合形成的。
The volcanic magmas were derived from the middle crust with a high maturity through partial melting of crustal material.
火山岩岩浆起源于成熟度较高的中地壳位置，成岩物质来源于地壳，为部分熔融作用的产物。
The magma was derived from the middle crust and the material of volcanic rocks originated from the crust.
火山岩岩浆起源于诺尔特地区中地壳位置，成岩物质来源于地壳。
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