Sökning: "Bára Dröfn Kristinsdóttir"

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  1. 1. U-Pb, O and Lu-Hf isotope ratios of detrital zircon from Ghana, West-African Craton : formation of juvenile, Palaeoproterozoic crust

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Bára Dröfn Kristinsdóttir; [2013]
    Nyckelord :Hf-Model ages; West African Craton; detrital zircon; Ghana; crustal growth; Earth and Environmental Sciences;

    Sammanfattning : Detrital zircon were sampled from five rivers in Ghana and they were analysed in situ for U-Th-Pb, O and Lu-Hf isotopes. Based on the analyses, their U-Pb crystallisation ages, δ18O isotope ratio, εHf and Hf-model ages were determined. This provides information about the origin and crustal evolution of the Palaeoproterozoic bedrock in Ghana. LÄS MER