... 流纹英安岩 dellenite 流纹英安斑岩 dellenite-porphyry 明列牙形石属〔S-D〕 Delotaxia ...
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大面积喜马拉雅期超浅成正长斑岩、印支期流纹斑岩英安岩系列火山岩类与地层的内、外接触带对成矿十分有利。
The inner, outside contact zone between Himalayan ultra-epizonal syenite porphyry, Indosinian volcanic rocks of liparite porphyry-dacite series and strata is very advantageous to the metallogenesis.
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