Show simple item record S. en_US G. A. T. en_US A. G. en_US Daniel R. en_US 2011-05-09T15:23:06Z 2011-05-09T15:23:06Z 2011-02-01 en_US
dc.identifier en_US
dc.identifier.citation Tsukamoto , S , Duller , G A T , Wintle , A G & Muhs , D R 2011 , ' Assessing the potential for luminescence dating of basalts ' Quaternary Geochronology , vol 6 , no. 1 , pp. 61-70 . , 10.1016/j.quageo.2010.04.002 en_US
dc.identifier.other PURE: 159298 en_US
dc.identifier.other dspace: 2160/6713 en_US
dc.description.abstract The possibility of dating basalt using luminescence was tested on four samples with independent age control from Cima volcanic field, California, with the ultimate aim of assessing whether the technique could be used to date sediments on the surface of Mars. Previous analysis of these samples had demonstrated that the infrared stimulated luminescence (IRSL) signal is most suitable for dating as it showed the lowest fading rate among various luminescence signals. In this study, changes in equivalent dose as a function of preheat are described. The ages for the two youngest Cima samples agree with the independent ages based on cosmogenic nuclide measurements (12.0 +/- 0.8 ka). In the two older samples (dated to 320 and 580 ka by K-Ar), the luminescence behaviour is more complex and the form of the IRSL decay curve is seen to vary with dose. Mathematical fitting is used to isolate two components and their intensities are used to produce dose response curves. The slower component yields a larger equivalent dose. However, even using this component and after correction for fading, the ages obtained for the older samples are younger than the K-Ar ages. (c) 2010 Elsevier B.V. All rights reserved. en_US
dc.format.extent 10 en_US
dc.relation.ispartof Quaternary Geochronology en_US
dc.subject MOJAVE DESERT en_US
dc.subject FELDSPARS en_US
dc.subject Plagioclase en_US
dc.subject Luminescence dating en_US
dc.subject IRSL en_US
dc.subject SEDIMENTS en_US
dc.subject CALIFORNIA en_US
dc.subject SAMPLES en_US
dc.subject SIGNALS en_US
dc.subject Mars analogue en_US
dc.subject DOSE-RATE en_US
dc.subject Cima volcanic field en_US
dc.subject Basalt en_US
dc.title Assessing the potential for luminescence dating of basalts en_US
dc.contributor.pbl Institute of Geography & Earth Sciences en_US
dc.contributor.pbl Quaternary Environmental Change Group en_US

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