Figure F83. Cr, MgO, and LOI vs. SiO2 in gabbroic rocks from Site 1268. Compositions of chlorite, talc, albite (Deer et al., 1992), the average composition of clinopyroxenes from the Haymiliyah gabbros (Oman ophiolite; Lachize, 1993), and the compilation of Leg 153 gabbros (Agar et al., 1997) are shown for comparison. Cpx = clinopyroxene. Dashed line shows detection limit (DL) for Cr.

Figure F83. Cr, MgO, and LOI vs. SiO₂ in gabbroic rocks from Site 1268. Compositions of chlorite, talc, albite (Deer et al., 1992), the average composition of clinopyroxenes from the Haymiliyah gabbros (Oman ophiolite; Lachize, 1993), and the compilation of Leg 153 gabbros (Agar et al., 1997) are shown for comparison. Cpx = clinopyroxene. Dashed line shows detection limit (DL) for Cr.