OSL dating of coarse-grain fluvial quartz using single-aliquot protocols on sediments from NE Peloponnese, Greece

Authors
Citation
M. Fuchs et A. Lang, OSL dating of coarse-grain fluvial quartz using single-aliquot protocols on sediments from NE Peloponnese, Greece, QUAT SCI R, 20(5-9), 2001, pp. 783-787
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Earth Sciences
Journal title
QUATERNARY SCIENCE REVIEWS
ISSN journal
0277-3791 → ACNP
Volume
20
Issue
5-9
Year of publication
2001
Pages
783 - 787
Database
ISI
SICI code
0277-3791(200103)20:5-9<783:ODOCFQ>2.0.ZU;2-2
Abstract
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. (C) 2000 Elsevier Science Ltd. All rights reserved.