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引言世界上大部分块状硫化物矿床都产生于火山岩内或与火山岩有关.以往有不少作者总结过这些矿石和火山岩之间的亲缘关系.而在加拿大这种共生关系的认识,只是最近
Introduction Most of the massive sulphide deposits in the world originate from volcanic rocks or are associated with volcanic rocks.Many authors have summarized the relationship between these ores and volcanic rocks in the past.At the same time,