Optical ages of quartz extracts in Holocene sediments from the north-easter
n Peloponnese, Greece, are reported. The single-aliquot regenerative-dose p
rotocol proposed by Murray and Wintle (2000, Radiation Measurements 32, 57-
73) was used to estimate the equivalent dose in these samples. A large inte
r-aliquot scatter in D-E values was observed for all samples; this is ascri
bed to heterogeneous bleaching of the samples at deposition. To estimate a
D-E for age calculation, a technique is suggested based on the analysis of
the D-E scatter obtained from nine different quartz samples which were arti
ficially bleached and irradiated. This procedure is especially useful when
the sample quantity is limited. The optical age estimates increase with sam
pling depth. An average aggradation rate of 1.5 mm/yr is derived using the
OSL ages; this value is consistent with the known uplift rate of 1-2 mm/yr.
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