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 S., Carlson, Rick W., Riley, Teal R., Luttinen, Arto V., Horan, Mary F.
• Other Authors: Finnish Museum of Natural History, Natural Sciences Unit
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier Scientific Publ. Co 2014
• Subjects: Other natural sciences; LARGE IGNEOUS PROVINCE; CONTINENTAL FLOOD BASALTS; KAROO MAGMATISM; picrite; mantle source; crustal recycling; Ahlmannryggen; Antarctic; Dronning Maud Land; The Antarctic; Antarc*
• Online Access: http://hdl.handle.net/10138/136492

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...