Subduction-modified oceanic crust mixed with a depleted mantle reservoir in the sources of the Karoo continental flood basalt province

• Published in: Earth and Planetary Science Letters
• Main Authors: Heinonen, Jussi, Carlson, Richard, Riley, Teal, Luttinen, Arto, Horan, Mary
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2014
• Subjects: Antarctic; The Antarctic; Dronning Maud Land; Ahlmannryggen; Antarc*
• Online Access: http://nora.nerc.ac.uk/id/eprint/503740/; https://nora.nerc.ac.uk/id/eprint/503740/1/Revision_EPSL-D-13-01142R1.pdf

The great majority of continental flood basalts (CFBs) have a marked lithospheric geochemical signature, suggesting derivation from the continental lithosphere, or contamination by it. Here we present new Pb and Os isotopic data and review previously published major element, trace element, mineral c...