Figure F213. (A) H2O versus SiO2 and (B) CO2 versus CaO for basalts, diabases, basalt breccia, gabbroic rocks, ultramafic rubble, and harzburgite from Hole U1309B and basalts, diabases, gabbros, and peridotites from Hole U1309D. Also shown for comparison are end-member compositions for lizardite, talc, tremolite, and actinolite (Deer et al., 1992) and ODP Site 920 serpentinites (Cannat, Karson, Miller, et al., 1995; Dilek et al., 1997).
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