Universität zu Köln

Klasen, Nicole, Loibl, Christa, Rethemeyer, Janet and Lehmkuhl, Frank ORCID: 0000-0002-6876-7377 (2017). Testing feldspar and quartz luminescence dating of sandy loess sediments from the Doroshivtsy site (Ukraine) against radiocarbon dating. Quat. Int., 432. S. 13 - 20. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 1873-4553

Full text not available from this repository.

Abstract

Post-infrared infrared stimulated luminescence (pIRIR) dating has reactivated the use of feldspar minerals to date Pleistocene deposits. We compared pIRIR stimulation measured at 290 degrees C (pIRIR(290)) of coarse grain feldspar (100-200 mu m) and optically stimulated luminescence (OSL) of coarse grain quartz (100-150 mu m) with radiocarbon dating. The samples were taken from the lower part of the Doroshivtsy sandy loess sequence, which contains Gravettian artefact layers. The site is one of the very few sections in Europe that provides a high-resolution sedimentary record including prehistoric finds of the last glacial cycle's cooling maximum. Field observation indicated that the deposits in the lower part of the loess section were redeposited. We applied early background subtraction for equivalent dose estimation of the quartz samples. The comparison of late background and early background subtraction revealed late background subtraction to be less suitable for estimating the net OSL signal of the quartz samples. Although the pIRIR290 signal resets slowly, we chose this stimulation for feldspar dating because the pIRIR290 signal is the most stable infrared simulated luminescence (IRSL) signal. The section was convenient for testing two different luminescence techniques because a potential influence of partial bleaching can be uncovered by independent age control. The OSL signal of quartz and the pIRIR290 signal of potassium feldspar bleach at different rates, but this had little influence because the coincident dating results confirmed complete resetting of both luminescence signals prior to deposition. Moreover, the quartz, feldspar and radiocarbon ages were within the time range of the Gravettian period in Ukraine (22 -28 ka). (C) 2015 Elsevier Ltd and INQUA. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Klasen, Nicole UNSPECIFIED UNSPECIFIED UNSPECIFIED Loibl, Christa UNSPECIFIED UNSPECIFIED UNSPECIFIED Rethemeyer, Janet UNSPECIFIED UNSPECIFIED UNSPECIFIED Lehmkuhl, Frank UNSPECIFIED orcid.org/0000-0002-6876-7377 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-236734
DOI:	10.1016/j.quaint.2015.05.036
Journal or Publication Title:	Quat. Int.
Volume:	432
Page Range:	S. 13 - 20
Date:	2017
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication:	OXFORD
ISSN:	1873-4553
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ANOMALOUS FADING CORRECTION; REGENERATIVE-DOSE PROTOCOL; IRSL; SAMPLES; SINGLE; GRAINS; RATES; THERMOLUMINESCENCE; APPLICABILITY; SIGNALS Multiple languages Geography, Physical; Geosciences, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/23673