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世界上最大的含矿杂岩体之一,可能产在杜费克侵入体中。这个侵入体是在170万年前当南极从非洲慢慢地离去时发生的镁铁质岩浆上涌而成的。1978年预计其规模约有8000~2公里。最近由英国和美国科学家组成的考察队利用机载磁力仪和声纳探测设备对该地做了一系列剖面测量后,承认杜费克的覆盖面积为50,000~2公里,其规模仅次于南非的大岩浆岩墙(布什维尔德杂岩体),到1973年它在矿物销售方面已为南非挣得36.79亿美元。
One of the largest ore-bearing complexes in the world may be produced in the Duffyk intrusion. This intrusive body was formed by mafic magma that occurred 1.7 million years ago as the Antarctic left slowly from Africa. In 1978 it is estimated that its size is about 8000 ~ 2 km. A team of British and U.S. scientists recently conducted a series of profile surveys of the site using airborne magnetometers and sonar detection equipment, recognizing Dufyk’s coverage of 50,000 to 2 kilometers and being second only to South Africa Of large magmatic rock dyke (Bushwild complex) and by 1973 it had earned 3.697 billion U.S. dollars in South Africa for mineral sales.