guī huà
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  • v.silicify; silication

    • wéi yán shí biàn yǒu guī huà huáng tiě kuàng huà hé tàn suān yán huà

      围岩蚀变硅化黄铁矿碳酸盐

      The wall rock alteration includes silication, pyritization and carbonation.