Geology of the Irish Sea
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This report covers the sea area surrounded by Ireland, southwest Scotland, northwest England and Wales, and runs from St George's Channel in the south to the North Channel in the north. The authors are Ian Jackson, Audrey Jackson, Dan Evans, Robin Wingfield, R Barnes and Mike Arthur.
The Geology of the area : Precambrian and Lower Palaeozoic rocks subcrop on the shelf around Anglesey and Lower palaeozoic rocks occur off the coasts of Ireland, southern Scotland and the Isle of Man. A thick, unconformable Carboniferous sequence crops out in the western part of the area and subcrops Permo-Triassic strata in the east. These later sedimentary rocks comprise marginal marine sandstone and mudstone with interbedded evaporitic deposits.
Lower Jurassic and possibly Cretaceous rocks occur in outliers around the area, but Lias strata have only been proven in the Keys Basin, east of the Isle of Man, and the Kish Bank Basin, to the south.
There are only restricted occurrences of Tertiary sedimentary rocks within the area and the Quaternary sediments are thin in platform areas, but up to 300 m thick in the Western Trough.
Author Jackson, D.I.
Year Published 1995