Diamondiferous kimberlites, lamproites and related rocks have been recorded in the West Greenland block of Archaean rock. GGU Open File Series 91/2 documents 500 such occurrences between latitudes 60deg and 72deg N and include four main swarms of kimberlite, a swarm of lamproite and seven swarms of ultramafic or strongly potassic lamprophyre.
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