Thermoluminescence dating of soils developed in Late Devensian loess at Pegwell Bay, Kent |
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| Authors: | A. G. WINTLE J. A. CATT |
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| Affiliation: | The Godwin Laboratory, Sub-Department of Quaternary Research, University of Cambridge, Free School Lane, Cambridge CB2 3RS;Soils and Plant Nutrition Department, Rothamsted Experimental Station, Harpenden, Herts AL5 2JQ |
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| Abstract: | Thermoluminescence (TL) measurements on the present organic surface soil and two buried soils in loess and colluvium derived from loess at Pegwell Bay, Kent, suggest that the signal is almost completely zeroed during soil development, mainly by optical bleaching. The technique may therefore be used to date buried soils developed in loess and possibly other terrestrial sediments. Decalcification, gleying and other soil-forming processes may also affect the TL signal of the soil parent material, and seem to be the main reasons why the Btg horizons of the Early Holocene buried soil at Pegwell Bay give more recent TL dates than the parent calcareous loess. |
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