Assessing the potential for using biogenic calcites as dosemeters for luminescence dating

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dc.contributor.author Wintle, Ann G.
dc.contributor.author Duller, Geoff A. T.
dc.contributor.author Penkman, K. E. H.
dc.date.accessioned 2010-12-03T15:07:42Z
dc.date.available 2010-12-03T15:07:42Z
dc.date.issued 2010-12-03
dc.identifier.citation Wintle , A G , Duller , G A T & Penkman , K E H 2010 , ' Assessing the potential for using biogenic calcites as dosemeters for luminescence dating ' pp. 429-433 . en
dc.identifier.other PURE: 163648
dc.identifier.other dspace: 2160/5978
dc.identifier.uri http://hdl.handle.net/2160/5978
dc.description Duller, G.A.T., Penkman, K.E.H., Wintle, A.G. (2009). Assessing the potential for using biogenic calcites as dosemeters for luminescence dating. Radiation Measurements, 44 (5/6), 429-433. Proceedings of the 12th International Conference on Luminescence and Electron Spin Resonance Dating (LED 2008) en
dc.description.abstract Calcium carbonate emits an intense thermoluminescence (TL) signal and previous work has explored the potential of using this signal to date both inorganic carbonates such as limestones and stalagmites and biogenic calcite produced by marine organisms. Luminescence analysis of biogenic calcites directly dates the secretion of the mineral by the organism and is therefore not reliant upon exposure of the sample to daylight. A method is outlined for using the TL signals from slug plates, from the Limacidae family, and opercula from the snail Bithynia tentaculata to construct a single-aliquot regenerative-dose growth curve. Analysis of slug plates from a number of Quaternary sites show that the equivalent dose (De) of a late Holocene sample is close to zero and that the De increases with age over the last 500 ka. The TL signal from snail opercula is shown to increase up to doses over 4000 Gy. Replicate measurements from 16 opercula from a site 220 ka show a broad distribution. Potential causes of this scatter are discussed along with recommendations about how it could be reduced. The major challenge which remains to be solved before slug plates or snail opercula could be used to calculate ages is to develop methods for calculating the dose rate received during burial. en
dc.format.extent 5 en
dc.language.iso eng
dc.relation.ispartof en
dc.title Assessing the potential for using biogenic calcites as dosemeters for luminescence dating en
dc.type Text en
dc.type.publicationtype Conference paper en
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.description.status Non peer reviewed en


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