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1996•Proceedings of the Yorkshire Geological SocietyRequires access

A Holocene dinoflagellate cyst record from offshore north-east England

Rex Harland, David A. Long

Open publisher page 12 citations

Abstract

SUMMARY Dinoflagellate cyst analysis of a British Geological Survey vibrocore from offshore north-eastern England has revealed a detailed record of Holocene marine conditions for the western North Sea area. Constrained by radiocarbon dating, the almost complete record reveals an initial warming trend followed by changing environmental conditions that can be best explained in terms of the various influences of Scottish or English Coastal Waters as previously defined. The increasing influence of North Atlantic water is present, as is some lowering of seawater salinity at the site during the interpreted Subatlantic with the possible increased run-off from the rivers Tyne, Wear and Tees. This study shows that dinoflagellate cyst analysis is proving to be a useful tool in the high resolution environmental elucidation of offshore marine Holocene sequences.

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SUMMARY Dinoflagellate cyst analysis of a British Geological Survey vibrocore from offshore north-eastern England has revealed a detailed record of Holocene marine conditions for the western North Sea area. Constrained by radiocarbon dating, the almost complete record reveals an initial warming trend followed by changing environmental conditions that can be best explained in terms of the various influences of Scottish or English Coastal Waters as previously defined. The increasing influence of North Atlantic water is present, as is some lowering of seawater salinity at the site during the interpreted Subatlantic with the possible increased run-off from the rivers Tyne, Wear and Tees. This study shows that dinoflagellate cyst analysis is proving to be a useful tool in the high resolution environmental elucidation of offshore marine Holocene sequences.

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Available abstract

SUMMARY Dinoflagellate cyst analysis of a British Geological Survey vibrocore from offshore north-eastern England has revealed a detailed record of Holocene marine conditions for the western North Sea area. Constrained by radiocarbon dating, the almost complete record reveals an initial warming trend followed by changing environmental conditions that can be best explained in terms of the various influences of Scottish or English Coastal Waters as previously defined. The increasing influence of North Atlantic water is present, as is some lowering of seawater salinity at the site during the interpreted Subatlantic with the possible increased run-off from the rivers Tyne, Wear and Tees. This study shows that dinoflagellate cyst analysis is proving to be a useful tool in the high resolution environmental elucidation of offshore marine Holocene sequences.

Key concepts: Dinoflagellate, Holocene, Oceanography, Submarine pipeline, Geology, North east, Paleontology, Archaeology

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