Igneous geochemistry of OP Leg 126 samples, supplement to: Taylor, Rex T; Lapierre, Henriette; Vidal, Philipp; Nesbitt, Robert W; Croudace, Ian W (1992): Igneous geochemistry and petrogenesis of the Izu-Bonin forearc basin. In: Taylor, B; Fujioka, K.; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 405-430

Rex T Taylor, Henriette Lapierre, Philipp Vidal, Robert W Nesbitt & Ian W Croudace
Major element, trace element, and radiogenic isotope compositions of samples collected from Ocean Drilling Program Leg 126 in the Izu-Bonin forearc basin are presented. Lavas from the center of the basin (Site 793) are high-MgO, low-Ti, two-pyroxene basaltic andesites, and represent the products of synrift volcanism in the forearc region. These synrift lavas share many of the geochemical and petrographic characteristics of boninites. In terms of their element abundances, ratios, and isotope systematics they are...
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