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pyroxenite |
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pyroxeniteDark medium- to coarse-grained igneous rock that consists chiefly of pyroxene. Accessory minerals include hornblende, biotite, or olivine. Pyroxenites are not abundant. |
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6% Ni, is hosted by a small, late-kinematic pluton of pyroxenite that crosscuts diatexites of sedimentary origin. Tatsumi (2000) showed that EM1 Sr-Nd-Pb isotopic compositions are consistent with melting Archean pyroxenite from the subcontinental lithosphere, and the [sup. MR FPP indicates Feldspathic Pegmatoidal Pyroxenite on the Merensky Reef and MR CR indicates Merensky Reef Contact Reef. |
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