Massey Et Al, Relative Sea Alevel Change and Postglacial Isostatic
JOURNAL OF QUATERNARY SCIENCE (2008) 23(5) 415–433 Copyright ß 2008 John Wiley & Sons, Ltd. Published online 25 February 2008 in Wiley InterScience (www.interscience.wiley.com) DOI: 10.1002/jqs.1149 Relative sea-level change and postglacial isostatic adjustment along the coast of south Devon, United Kingdom ANTHONY C. MASSEY,1 W. ROLAND GEHRELS,1* DAN J. CHARMAN,1 GLENN A. MILNE,2 W. RICHARD PELTIER,3 KURT LAMBECK4 and KATHERINE A. SELBY5 1 School of Geography, University of Plymouth, Plymouth, UK 2 Department of Earth Sciences, University of Durham, Durham, UK 3 Department of Physics, University of Toronto, Toronto, Ontario, Canada 4 Research School of Earth Sciences, Australian National University, Canberra, ACT, Australia 5 School of Geography, University of Southampton, Southampton, UK Massey, A. C., Gehrels, W. R., Charman, D. J., Milne, G. A., Peltier, W. R., Lambeck, K. and Selby, K. A. 2008. Relative sea-level change and postglacial isostatic adjustment along the coast of south Devon, United Kingdom. J. Quaternary Sci., Vol. 23 pp. 415–433. ISSN 0267-8179. Received 1 February 2007; Revised 23 June 2007; Accepted 16 July 2007 ABSTRACT: Previous sea-level studies suggest that southwest Britain has the fastest subsiding coastline in the United Kingdom, but tide-gauge data, GPS and gravity measurements and geophysical models show little evidence of anomalous subsidence in this region. In this paper we present 15 new sea-level index points from four coastal barrier systems in south Devon. Eight are from compaction-free basal sediments and others were corrected for autocompaction. Our data suggest that relative sea level along the south Devon coastline has risen by 21 Æ 4 m during the past 9000 years.
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