求翻译：区内不同岩性火山岩类的演化特征具有很大相似性，即结晶分异作用和陆壳混染在岩浆演化过程中起了一定作用。火山岩形成的构造背景为伸展环境，归因于伊泽奈崎板块和欧亚大陆板块的相互作用的北西西-南东东向的区域性的伸展。岩浆活动是晚中生代以来的伊泽纳奇板块向欧亚大陆板块之下俯冲的结果，是在岩石圈伸展和减薄背景下，软流圈地慢的上涌和地温梯度增高导致上部岩石圈地慢中的低熔组分(水和LEE富集的交代地慢)发生部分熔融而形成。是什么意思？

The evolution of the region different lithological volcanic class features of similarity, ie, fractional crystallization and continental crust contamination played a role in the process of magmatic evolution. The volcanic rocks of the tectonic setting of an extensional environment, the North West -

In the different areas of volcanic rock in the evolution class characteristics have a significant similarity of crystallization, that is a different role and land-based shell mixed in with the magma evolution has played a role. volcanic rock formation in the background of the constructed environment

Different class evolution characteristics of rock in the area has great similarities, crystallization