British and Fennoscandian Ice-Sheet interactions during the quaternary
Northeastern England and the North Sea Basin is a critical location to examine the influence of glaciation in the northern Hemisphere during the Quaternary. This region was a zone of confluence between the British and Fennoscandian Ice Sheets, and harboured several dynamic ice lobes sourced from nor...
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| Format: | Thesis |
| Language: | unknown |
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2008
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| Online Access: | http://etheses.dur.ac.uk/2225/ http://etheses.dur.ac.uk/2225/1/2225_235_-_vol_1.pdf http://etheses.dur.ac.uk/2225/2/2225_235_-_vol_2.pdf http://etheses.dur.ac.uk/2225/3/Appendix_II_Publications.zip http://etheses.dur.ac.uk/2225/4/Appendix_III_Photographs.zip http://etheses.dur.ac.uk/2225/5/Appendix_IV_RawData.zip |
| Summary: | Northeastern England and the North Sea Basin is a critical location to examine the influence of glaciation in the northern Hemisphere during the Quaternary. This region was a zone of confluence between the British and Fennoscandian Ice Sheets, and harboured several dynamic ice lobes sourced from northern Scotland, the Cheviots, the Lake District and the Southern Uplands. The region thus has some of the most complex exposures of Middle to Late Pleistocene sediments in Britain, with both interglacial and glacial sediments deposited in terrestrial and marine settings, and being sourced from both the British Isles and northern continental Europe. The research undertaken involved a thorough reinvestigation of the Quaternary sediments of northeast England, making use of enhanced exposures in coastal sections following the cessation of colliery waste dumping, and in boreholes from the North Sea. It used detailed sedimentological, stratigraphical, chronostratigraphical, lithological, petrological, and geochemical techniques to investigate their depositional processes, age, provenance signatures, and regional correlatives to construct an independent model of the eastern margin of the British-Irish Ice Sheet (BUS) throughout the Quaternary, and its interaction in the North Sea Basin with the Fennoscandian Ice Sheet (PIS). This region was a zone of confluence between ice lobes sourced from northern Scotland, the Cheviots, the Lake District and the Southern Uplands, and is ideally placed for investigating the geological record of the North Sea Lobe during the Late Devensian. In addition. County Durham has one of the most northerly exposures of Middle Pleistocene sediments in Britain, including a raised beach and a Scandinavian till. This project focussed on a variety of localities in northeastern England and in the North Sea Basin, including Whitburn Bay, Shippersea Bay, Hawthorn Hive, and Warren House Gill. At Whitburn Bay, the Blackhall and Horden glacigenic members are exposed in superposition and are Late Devensian in ... |
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