The volcanogenic deposits hosted in differential yolcanic rock series and cogenetic deposits hosted in undifferential baste volcanic rock series have been divided and studied in this paper.
笔通过研究,分出了分异火山岩系中的火山因和未分异基性火山岩系中的共生,为前的金属聚集与岩浆分异有密切关系。
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