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用、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用、造活动是硼形成的必要条件。
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