基底变质岩的成分和形成时代对揭示地壳演化至关重要。
The compositions and formation history of basement metamorphic rocks are the key to understanding crust evolution.
根据显微构造和电子探针结果分析可知，研究区基底变质岩经历过至少三次变形变质作用。
According to microstructural and electron microprobe analyse, it has been determined that at least three metamorphic stages occurred in the basement metamorphic series in the region.
成矿物质主要来源于基底太古界变质岩系。
The metallogenic substance mainly comes from the Archeozoic metamorphic rock series in basement.
应用推荐