Thus, the boron-bearing rock system and the magnesian rocks are the foundation of the borate deposits, whereas regional metamorphism and migmatitization and tectonism are the necessary conditions.
含硼
、
质容矿石
硼矿形成的物质基础，区域变质及混合化作用、构造活动硼矿形成的必要条件。
Thus, the boron-bearing rock system and the magnesian rocks are the foundation of the borate deposits, whereas regional metamorphism and migmatitization and tectonism are the necessary conditions.
含硼、质容矿石硼矿形成的物质基础，区域变质及混合化作用、构造活动硼矿形成的必要条件。
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