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Figure F39. MgO vs. (A) Al₂O₃, (B) CaO/Al₂O₃, and (C) Fe₂O₃^T for Sites U1372–U1377. Expedition 330 data are normalized to 100 wt% totals. Data for dredge samples include only samples with LOI < 6 wt% (data of Hawkins et al., 1987; Vanderkluysen et al., 2007; Beier et al., 2011). Fields for several Hawaiian volcanoes are shown. “Hawaii shield” fields are for Mauna Kea (blue line), Mauna Loa (green line), and Kilauea (red line) (data of Lipman et al., 1990; Frey et al., 1991; Moore and Clague, 1992; Clague et al., 1995; Rhodes and Hart, 1995; Garcia et al., 2003). “Hawaii postshield” fields include Lapahoehoe and Hamakua lavas (data of Frey et al., 1990; West et al., 1988). Also shown are fields for the southern East Pacific Rise (EPR; data of Sinton et al., 1991; Bach et al., 1994; Mahoney et al., 1994) and Ontong Java Plateau (OJP; data of Tejada et al., 1996, 2002; Fitton and Godard, 2004).

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