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  • Globally elevated titanium, tantalum, and niobium (TITAN) in ocean island basalts with high 3He/4He 

    Jackson, Matthew G.; Hart, Stanley R.; Saal, Alberto E.; Shimizu, Nobumichi; Kurz, Mark D.; Blusztajn, Jerzy S.; Skovgaard, Anna C. (American Geophysical Union, 2008-04-17)
    We report evidence for a global Ti, Ta, and Nb (TITAN) enriched reservoir sampled by ocean island basalts (OIBs) with high 3He/4He ratios, an isotopic signature associated with the deep mantle. Excesses of Ti (and to a ...