Nature and timing of multiple metasomatic events in the sub-cratonic lithosphere beneath Labait, Tanzania

J.M. Koornneef, G.R. Davies, S.P. Dopp, Z. Vukmanovic, I. Nikogosian, P.R.D. Mason

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    Petrography, mineral major- and trace element analyses and Rb-Sr and Sm-Nd systematics of xenoliths from Labait volcano, north-central Tanzania, document multiple metasomatic events after initial depletion of the Archaean sub-lithospheric mantle. Four distinct metasomatic phases occurred during the 2.8-3.2 Ga history of the mantle section of the Tanzanian craton. 1) Garnet and Cr-diopside in two depleted lherzolites record LREE enrichment in an early cryptic metasomatic event (~ 2 Ga) resulting in unradiogenic ε
    Original languageEnglish
    Pages (from-to)896-912
    JournalLithos
    Volume112
    Issue number2
    DOIs
    Publication statusPublished - 2009

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