North Atlantic margins. The Porcupine Basin and adjacent areas
2016. "North Atlantic margins. The Porcupine Basin and adjacent areas", A revised correlation of Tertiary rocks in the British Isles and adjacent areas of NW Europe, C. King, A. S. Gale, T. L. Barry
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In response to the disintegration of Pangaea in the late Palaeozoic, with crustal extension propagating episodically northwards from the central Atlantic (Johnston et al. 2001), a series of extensional sedimentary rift basins developed on the continental shelf west and north of Ireland, forming a North Atlantic borderland basin system. The structural framework was largely inherited from Caledonian and older tectonic lineaments. These basins include the Porcupine Basin, and the Slyne, Erris and Rockall Troughs. The detailed depositional history varies from basin to basin, but overall patterns are similar. Basin development began in the Permian or Triassic, with the main rifting phase in the Late Jurassic and Early Cretaceous. This was followed by post-rift subsidence of the major basins, mostly to bathyal depths, in the early Cenozoic, interrupted by several Cenozoic episodes of regional uplift or tilting (Naylor & Shannon 2005; Praeg et al. 2005; Stoker et al. 2010).
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This Special Report comprehensively describes the stratigraphy and correlation of the Tertiary (Paleogene-Neogene) rocks of NW Europe and the adjacent Atlantic Ocean and is the summation of fifty years of research on Tertiary sediments by Chris King. His book is essential reading for all geologists who deal with Tertiary rocks across NW Europe, including those in the petroleum industry and geotechnical services as well as academic stratigraphers and palaeontologists.
Introductory sections on chronostratigraphy, biostratigraphy and other methods of dating and correlation are followed by a regional summary of Tertiary sedimentary basins and their framework and an introduction to Tertiary igneous rocks. The third and largest segment comprises the regional stratigraphic summaries. Regions covered are the North Sea Basin, on shore areas of southern England and the eastern English Channel area, the North Atlantic margins (including non-marine basins in the Irish Sea and elsewhere) and the Paleogene igneous rocks of Scotland.