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
中
火山成因
未分异基性火山岩
中
共生
,认为
金属聚集与岩浆分异有密切关
。