Institute of Geological Sciences Radiocarbon Dates III

Welin, Eric; Engstrand, Lars; Vaczy, S.

doi:10.1017/s0033822200059403

Radiocarbon

1972

DOI: 10.1017/s0033822200059403

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Institute of Geological Sciences Radiocarbon Dates III

Eric Welin¹,

Lars Engstrand²,

S. Vaczy³

Abstract: This date list was compiled by the Institute of Geological Sciences (U.K.) incorporating data supplied under contract by E. Welin, Radioactive Dating Laboratory, Stockholm. Unless otherwise stated, age figures are in C14 years before a.d. 1950. The half-life of C14 is taken as 5568 years and the error, based on counting statistics of sample, background, and modern, is given as one standard deviation. Correction for C13/C12 fractionation has not been made.

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1973

1986

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Cited by 8 publications

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Flandrian sea‐level changes in the Fenland. I: The geographical setting and evidence of relative sea‐level changes

Shennan

1986

J Quaternary Science

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The Flandrian sediments of the Fenland record the infilling of the Wash embayment on the east coast of England, UK. Since at least 6500 BP changes in sea level have been a major control on the rate and pattern of sediment accumulation. New data are presented from the area which together with published information allow the reconstruction of palaeoenvironments from 6500 to 2500 BP.The major environmental changes involved alternations between freshwater fen and intertidal marine sedimentation. Each episode was characterised by transitional changes as vegetation and sediment zones shifted over large areas. Marinelbrackish sediments are found up to 45 km inland of the present coast. Radiocarbon dated sea-level index points, with relevant stratigraphic and micropalaeontological data, ranging from 6415 BP at -8.1 7 m OD to 2595 BP at +1.45m OD, are described. Journal of Quaternary ScienceKEYWORDS: sed i mentat i on.Sea-level change, Flandrian (Holocene), eastern England (UK), palaeoenvironments,

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Flandrian sea‐level changes in the Fenland. I: The geographical setting and evidence of relative sea‐level changes

Shennan

1986

J Quaternary Science

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Flandrian sea‐level changes in the Fenland. II: Tendencies of sea‐level movement, altitudinal changes, and local and regional factors

Shennan

1986

J Quaternary Science

191

125

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Shennan, I. 1986 Flandrian sea-level changes In the Fenland II: Tendencifs of sea-level movement, altitiidina c hanges, and local and regional factors. loonid/ ol Quaternary Science, Vol. 1, pp. 155-1 79. ISSN 0267-81 79 ABSTRACT: Stratigraphic, micropalaeontologic and radiocarbon data show that since c. 6500 BP the Fenland has been influenced by 7 periods of positive sea-level tendencies and by 6 periods of negative sea-level tendencies. Despite the numerous problems associated with the reconstruction of past altitudes of sea level the periods of positive sea-level tendencies were clearly characterised by a rise in sea level, the development of transgressive overlaps and a landward movement of the coastline. The periods of negative sea-level tendencies were characterised by the development of regressive overlaps, a seaward movement of the coastline and a reduced or negative rate of sea-level rise. The various altitudinal errors do not permit the incontrovertible distinction of periods of falling sea levels. All changes within the Fenland were not synchronous and local factors influenced theexact nature of each sea-level indicator. Dominant regional and local factors have been identified for different areas and different time periods. The chronological and spatial characteristics of the sequences within the Fenland are bestexplained by a palaeocoastline without supratidal barriers controlling sedimentation.The data indicate an average crustal subsidence in the Fenland of 0.9 m/l 000 years since c. 6500 BP and the pattern of positive and negative tendencies of sea-level movement is also seen in the chronologies for north west England and north east Scotland. Journal of Quaternary Science

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The Pleistocene sequence of the Telford district

Hamblin

1986

Proceedings of the Geologists' Association

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Institute of Geological Sciences Radiocarbon Dates III

Cited by 8 publications

References 6 publications

Flandrian sea‐level changes in the Fenland. I: The geographical setting and evidence of relative sea‐level changes

Flandrian sea‐level changes in the Fenland. I: The geographical setting and evidence of relative sea‐level changes

Flandrian sea‐level changes in the Fenland. II: Tendencies of sea‐level movement, altitudinal changes, and local and regional factors

The Pleistocene sequence of the Telford district

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