Determination of sedimentation rate of a recently deposited tidal flat, western coast of Korea, using IRSL dating

초록

Luminescence dating using infrared stimulation of K-feldspar grains was undertaken to determine the sedimentation rate of a recently deposited tidal flat on the western coast of Korea. Five samples were collected from a core of the tidal flat. The very low luminescence intensities in the surface sample indicate that the material was well bleached at deposition. Recuperation before and after preheating was investigated on natural and laboratory-bleached surface samples and considered in age calculations. The five IRSL age estimates show a reasonable stratigraphic correlation and allow the calculation of the sedimentation rate of 6.1 +/- 0.4 cm yr(-1). We conclude that infrared stimulated luminescence dating can contribute significantly to the determination of sedimentation rates of tidal flats. (C) 2003 Elsevier Science Ltd. All rights reserved.

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