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Dredged basalts from the mid-oceanic ridge north of Iceland

Nature 254, 298–301 (1975) | Download Citation

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Abstract

An examination of the concentrations of the incompatible elements in tholeiites from the Kolbeinsey Ridge indicates that plume magmas have probably not overflowed into that area from Iceland or Jan Mayen Island. The results also show that the chemistry of plume magmas may be intimately related to regional geochemical patterns, and it is possible that Iceland represents a ‘weak spot’ or decompression focus, which causes complex flow patterns within and from the asthenosphere.

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              Affiliations

              1. Ocean Study Group, Roskilde Universitetscenter, 4000, Roskilde, Denmark

                • Finn Dittmer

              2. Ocean Study Group, Universitetets, Mineralogisk-Geologiske Instituter, og Mineralogsik Museum, Øster Voldgade 5–7, 1350, Copenhagen K, Denmark

                • Stanley Fine
                • , Mogens Rasmussen
                • , John C. Bailey
                •  & John Campsie

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              https://doi.org/10.1038/254298a0

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