Geochemistry and radiogenic isotopes of ODP Hole 157-953C lavas, supplement to: Gurenko, Andrey A; Hoernle, Kaj; Sobolev, Alexander V; Hauff, Folkmar; Schmincke, Hans-Ulrich (2010): Source components of the Gran Canaria (Canary Islands) shield stage magmas: evidence from olivine composition and Sr–Nd–Pb isotopes. Contributions to Mineralogy and Petrology, 159(5), 689-702

Andrey A Gurenko, Kaj Hoernle, Alexander V Sobolev, Folkmar Hauff & Hans-Ulrich Schmincke
The Canary Island primitive basaltic magmas are thought to be derived from an HIMU-type upwelling mantle containing isotopically depleted (NMORB)-type component having interacted with an enriched (EM)-type component, the origin of which is still a subject of debate. We studied the relationships between Ni, Mn and Ca concentrations in olivine phenocrysts (85.6-90.0 mol.% Fo, 1,722-3,915 ppm Ni, 1,085-1,552 ppm Mn, 1,222-3,002 ppm Ca) from the most primitive subaerial and ODP Leg 157 high-silica (picritic to...
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