Ref.: Melson, William G. and George Switzer (1966) "Plagioclase-spinel-graphite xenoliths in metallic iron-bearing basalts, Disko Island, Greenland." American Mineralogist: 51: 664-676.
Klöck, W. and Plame, H. (1988) Partitioning of siderophile and chalcophile elements between sulfide, olivine and glass in a naturally reduced basalt from Disko Island, Greenland. Proceedings of the Lunar and Planetary Science Conference: 18: 471-483.
Klöck, W., Palme, H., & Tobschall, H.J. Trace Elements in Native Iron from Disko Island, West Greenland. Journal: Meteoritics, Vol. 19, p.252.