OSL and IRSL dating of raised beach sand deposits along the southeastern coast of Norway

M. Fuchs, S. Kreutzer, Manfred Fischer, D. Sauer, R. Sørensen

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14 Citations (Scopus)

Abstract

Raised beach sand deposits along the southeastern coast of Norway were dated by optical (OSL) and infrared stimulated luminescence (IRSL) and the quartz and K-feldspar luminescence characteristics were described. Due to the poor quartz luminescence characteristics, only a limited number of samples were suitable for OSL dating. More promising are the K-feldspar extracts, with typical K-feldspar luminescence characteristics and no sign of fading. For equivalent dose (De) determination, sand-size quartz and feldspar extracts were used, applying a single aliquot regenerative (SAR) protocol. Both, OSL and IRSL De estimates show a wide distribution, unexpected for beach deposits. The calculated OSL and IRSL age estimates were generally in good agreement and the correctness of the ages was confirmed by independent age control. Because only a limited number of the quartz samples were suitable for OSL dating, IRSL dating of the K-feldspar represents an alternative to OSL quartz dating.
Original languageEnglish
Pages (from-to)195-200
Number of pages6
JournalQuaternary Geochronology
Volume10
Early online date28 Nov 2011
DOIs
Publication statusPublished - 01 Jul 2012
Externally publishedYes

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