Bruck, P.M.; Molyneux, S.G.. 2011 Cambrian of Ireland. In: Rushton, Adrian W A; Bruck, P.M.; Molyneux, Stewart; Williams, Mark; Woodcock, N.H., (eds.) A revised correlation of the Cambrian rocks in the British Isles / A.W.A. Rushton ... [et al]. Geological Society of London, 42-52. (Geological Society Special Report, 25).
As discussed in Chapter 11 of this Report, some authors have considered that the
uppermost part of the Southern Highland Group of the Dalradian in Scotland might be
Lower Palaeozoic, possibly Early Cambrian to Early Ordovician. The age of the Irish
Dalradian is also not fully clear (Daly 2001). Thus, in Ireland, strata that are clearly
Cambrian in age are restricted in outcrop, being confined to some areas of the
southeast (Fig. 16) in the Leinster Terrane (Murphy et al. 1991; Woodcock 2000;
Holland 2001, 2009). There they comprise the Bray and Cahore Groups and part of
the Lower Palaeozoic Ribband Group (Figs 18, 19). In addition, in southernmost
Leinster (Fig. 20), palynological studies have now shown that the Cullenstown
Formation is Cambrian. In the same area, the Ballycogly Group mylonites, which
occur along the boundary between the Leinster Terrane and the Precambrian
basement of the Rosslare Terrane, are considered to be Cambrian (Tietzsch-Tyler &
Sleeman 1994a) although there is no direct biostratigraphical evidence.
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