U-Pb age and Nd isotope evidence for Archean terrane development and crustal recycling in the south-central Wabigoon subprovince, Canada

U-Pb geochronology is presented for 19 volcanic and associated plutonic rocks from nine greenstone belts within the southern part of the central Wabigoon subprovince (CWS), western Superior Province. Data indicate that early felsic volcanism (3,014-2,999 Ma) was coeval with emplacement of the Marmion batholith at 3,002 Ma. This was followed by periods of mafic volcanism (with minor felsic and komatiitic compositions) between 2,963 and 2,898 Ma across the south-CWS. Plume-driven mafic and komatiitic volcanism occurred in the Lumby Lake and Lac des Mille Lacs belts at ca. 2,828 Ma. Eruption of komatiitic tuffs in the Steep Rock belt at