pyroxenite In A Sentence

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• It was first described in 1965 in the Afrikanda pyroxenite massif, a formation on Russia's Kola Peninsula and was named for Nikolai Grigorievich Kassin ( 1885-1949 ), a prominent Russian geologist.
• "' pyroxenite Promontory "'is a promontory rising to about 1, 150 m near the west end of Dufek Massif in the Pensacola Mountains.
• Although some mantle pyroxenites contain garnet, they are not eclogites, as clinopyroxene in them is less sodic than omphacite and the pyroxenite compositions typically are unlike that of basalt.
• The parental magma for pyroxenite xenoliths could be derived from the partial melting of the asthenosphere with continental crust material involvement and of the upper lithospheric mantle.
• Rock types include picrite, peridotite, dunite, pyroxenite, gabbro and granophyre.