求翻译：研究区位于大兴安岭北部地区，在中生代壳幔作用强烈，岩石圈显著减薄，大规模岩浆活动频繁，是环太平洋火山作用的重要组成部，是什么意思？

The study area is located in the the Daxinganling northern regions, the strong role of Mesozoic crust-mantle, the lithosphere was significantly thinned, frequent large-scale magmatic activity is an important part of the circum-Pacific volcanism,

daxinganling area of study is located in the northern region, Chiang Ching-kuo curtain now strongly, the rock band role significantly thinner, less frequently, and massive magma activity around the Pacific Ocean is the important role of volcanic eruptions,

The research area is located north Daxinanling the area, is intense in the mesozoic in the shell curtain function, the lithosphere obviously attenuates, the large-scale magmatic activity is frequent, is the link Pacific Ocean volcanism important composition department,

The study area is located in Northern daxinganling, Mesozoic crust-mantle interaction in a strong, significant thinning of lithosphere, large-scale magmatic activity, is an important composition of volcanism in the Central Pacific,

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