The Otta Conglomerate, the Vågåmo Ophiolite ­ further indications of early Ordovician Orogenesis in the Scandinavian Caledonides

Arenig/Lianvirn conglomerate of the Sel cover series, with its population of clasts derived, in large part, from the ophiolite. The unconformity locally oversteps the ophiolite on to its Heidal substrate white both upsequence levels and lateral equivalents of the 'serpentine' conglomerates reveal abundant clasts of previously deformed and metamorphosed rocks of Heidal affinity, in addition to ophiolitic de bris. This clearly demonstrates the 'terrane-linking ' nature of the unconformity, while the fauna of the lowermost Sel places a clear upper time-limit to obduction of the Vagamo Ophiolite across the western margin of the then Baltic Craton.