Abstract
Immiscible sulphide-oxide melts in submarine basalt magmas are preserved as globules in glasses. Their small size (typically < 30 μm) and even distribution within glass suggest that most had limited residence times in the host magmas and that the two melts did not equilibrate with respect to the chalcophile trace elements. Several MORB glasses from the FAMOUS area have been found for which the sulphides are of sufficient size for separation. For one, chemical and petrographic data also indicate that equilibrium between the two melts may have been approached.
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© 1988 Elsevier Science Publishers Ltd
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Peach, C.L., Mathez, E.A. (1988). Gold and Iridium in Sulphides from Submarine Basalt Glasses. In: Prichard, H.M., Potts, P.J., Bowles, J.F.W., Cribb, S.J. (eds) Geo-Platinum 87. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1353-0_43
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DOI: https://doi.org/10.1007/978-94-009-1353-0_43
Publisher Name: Springer, Dordrecht
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