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Correlation of Lower Pleistocene Crag at depth in Suffolk

Published online by Cambridge University Press:  01 May 2009

R. B. Beck ,
B. M. Funnell  and
A. R. Lord
R. B. Beck
Affiliation:
Sub-Dept of Quaternary Research, University of Cambridge, Cambridge, CB2 3EA
B. M. Funnell
Affiliation:
School of Environmental Sciences, University of East Anglia, Norwich, NOR 88C
A. R. Lord
Affiliation:
School of Environmental Sciences, University of East Anglia, Norwich, NOR 88C
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Summary

The stratigraphy of the early Pleistocene marine deposits erected from a borehole at Ludham, Norfolk, based on pollen and foraminifera, is extended to another borehole at Stradbroke, Suffolk. Pollen analyses from argillaceous parts of the sequence at Stradbroke show a Pre-Ludhamian pollen zone, overlain by the Ludhamian. Foraminiferal evidence indicates that the Pre-Ludhamian is equivalent to part of the Red Crag, thus providing the first direct evidence as to the relative ages of the Red Crag and the Ludhamian. Palaeomagnetic investigations indicate a normal polarity and, by comparison with the Netherlands sequence, an age of at least 1.60 m.y. for the deposition of the Pre-Ludhamian.

Type
Research Article
Information
Geological Magazine , Volume 109 , Issue 2 , March 1972 , pp. 137 - 139
Copyright
Copyright © Cambridge University Press 1972

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References

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