C. N. Waters, I. D. Somerville, 2011. "South Munster Basin", A Revised Correlation of Carboniferous Rocks in the British Isles, C. N. Waters, I. D. Somerville, N. S. Jones, C. J. Cleal, J. D. Collinson, R. A. Waters, B. M. Besly, M. T. Dean, M. H. Stephenson, J. R. Davies, E. C. Freshney, D. I. Jackson, W. I. Mitchell, J. H. Powell, W. J. Barclay, M. A. E. Browne, B. E. Leveridge, S. L. Long, D. McLean
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South of the platform carbonate successions of South Central Ireland (Chapter 22), the South Munster Basin of southern Ireland (Fig. 61) is dominated by deeper-water terrigenous sedimentary rocks comparable to those present in the Culm Basin of SW England (Chapter 4). The basin is divided into a western Bantry Sub-basin and eastern Kinsale Sub-basin, separated by the Glandore High upon which an extremely attenuated succession developed (Naylor et al. 1989).
The evolution of the South Munster Basin was affected by four distinct phases (Naylor et al. 1989). During the Late Devonian to early Courceyan, subsidence rates in both sub-basins were rapid and associated with deposition of relatively shallow-marine sand and mud. During the Courceyan there was a reduction in both in?ux of sand and rates of basin subsidence, but with a net deepening of the basin. During the late Courceyan to Brigantian the basin became starved of sediment. During the Namurian, a renewed influx of sand caused basin infilling.
The Tournaisian and Visean succession consists of a single Cork Group, which in the Kinsale Sub-basin comprises four formations: Castle Slate Formation at the base, followed by the Kinsale, Courtmacsherry and Lispatrick formations of Courceyan-Brigantian age. In the Bantry Sub-basin the Castle Slate and Kinsale formations are overlain by the Reenydonagan Formation of Courceyan to Arundian age.
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The report revises and expands upon the 1976 and 1978 publications for the Dinantian and Silesian, respectively, combining them into a single account of British and Irish Carboniferous stratigraphy. The need to update the two Special Reports reflects the considerable advances in Carboniferous geology over the last 30 years. The report covers developments in international chronostratigraphy and incorporates wholesale reassessments of British lithostratigraphy. A huge volume of biostratigraphical information has been published over recent decades and the report summarizes the key information.
Carboniferous rocks have long been of economic importance, but it is the search for hydrocarbons, in its infancy at the time of the previous reports, which has greatly increased our understanding of Carboniferous successions offshore and at depth, particularly in southern and eastern England.