Therefore, the petrochemical data provide the P-T conditions of crustal melting in the peak period of the Yanshanian orogeny.
所以，这些强过铝质侵入岩的岩石化学数据提供了关于燕山运动峰期地壳发生部分熔融时的温压条件的信息。
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。
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