Fig. 5. Compositions of orthopyroxene plotted as wt % Cr<sub>2</sub>O<sub>3</sub> vs CaO for: 1, spinel–garnet coarse peridotite; 2, garnet coarse peridotite;

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Fig. 5. Compositions of orthopyroxene plotted as wt % Cr<sub>2</sub>O<sub>3</sub> vs CaO for: 1, spinel–garnet coarse peridotite; 2, garnet coarse peridotite; 3, porphyroclastic non-disrupted peridotite; 4, porphyroclastic disrupted peridotite; 5, megacrystalline pyroxenites; 6, megacrysts. Continuous lines delineate fields of characteristic chemical compositions for the above rock types. From: Petrology of Peridotite and Pyroxenite Xenoliths from the Jericho Kimberlite: Implications for the Thermal State of the Mantle beneath the Slave Craton, Northern Canada J Petrology. 1999;40(1):79-104. doi:10.1093/petroj/40.1.79 J Petrology | © Oxford University Press 1999 1