SHRIMP U-Pb zircon geochronology of gneisses from the Gweta borehole, northeast Botswana: implications for the Palaeoproterozoic Magondi Belt in southern Africa

Mapeo, R B M; Armstrong, Richard; Kamo, Sandra L

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SHRIMP U-Pb zircon geochronology of gneisses from the Gweta borehole, northeast Botswana: implications for the Palaeoproterozoic Magondi Belt in southern Africa

Date

2001

Authors

Mapeo, R B M

Armstrong, Richard

Kamo, Sandra L

Publisher

Cambridge University Press

Abstract

This paper presents new U-Pb zircon analyses from garnet-sillimanite paragneisses from the Gweta borehole in northeast Botswana. Concordant to near-concordant analyses of zircon from these rocks reveal a billion year history from 3015 ± 21 Ma for the old