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
系、镁质
石是硼形成的物质基础，区域变质及混合化作
、构造活动是硼形成的必要条件。
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.
含硼系、镁质石是硼形成的物质基础，区域变质及混合化作、构造活动是硼形成的必要条件。
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