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Article: Low temperature thermochronology using thermoluminescence signals from quartz

TitleLow temperature thermochronology using thermoluminescence signals from quartz
Authors
Issue Date2015
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/radmeas
Citation
Radiation Measurements, 2015, v. 81, p. 92-97 How to Cite?
AbstractIsothermal thermoluminescence (ITL) and thermoluminescence (TL) signals from quartz were studied. A single aliquot regenerative dose protocol has been applied for ITL De determination (SAR-ITL). In the SAR-ITL protocol, the preheat condition was a cutheat to 10 °C higher than measurement temperature. The test dose was approximate to the expected De, and a 450 °C heat was given at end of each cycle to minimize signal build-up. Based on signals strength and dose recovery test, temperatures of 235 and 255 °C were selected for the ITL De measurement. A multiple aliquots regenerative protocol has been applied for TL De determination (MAR-TL). The preheat procedure was a cutheat of 235 °C and a second glow TL of 175 Gy was used for normalization. The sensitivity change of first heating to 450 °C was negligible, supported by comparison between additive and regenerative dose growth curves. Based on the natural TL signal and preheat condition studies, De values at temperatures of 250–330 °C were used for thermochronological study. These two protocols were applied to rock samples collected at different elevations from Nujiang River (also called Salween River) valley slope. The SAR-ITL gave De results consistent with the MAR-TL at temperatures of 40–50 °C higher. The results clearly demonstrate the differences in the thermal histories between the analyzed samples. The SAR-ITL and MAR-TL protocols were both found to be suitable for application in thermochronology.
Persistent Identifierhttp://hdl.handle.net/10722/216818
ISSN
2015 Impact Factor: 1.071
2015 SCImago Journal Rankings: 0.592

 

DC FieldValueLanguage
dc.contributor.authorTang, SL-
dc.contributor.authorLi, SH-
dc.date.accessioned2015-09-18T05:40:06Z-
dc.date.available2015-09-18T05:40:06Z-
dc.date.issued2015-
dc.identifier.citationRadiation Measurements, 2015, v. 81, p. 92-97-
dc.identifier.issn1350-4487-
dc.identifier.urihttp://hdl.handle.net/10722/216818-
dc.description.abstractIsothermal thermoluminescence (ITL) and thermoluminescence (TL) signals from quartz were studied. A single aliquot regenerative dose protocol has been applied for ITL De determination (SAR-ITL). In the SAR-ITL protocol, the preheat condition was a cutheat to 10 °C higher than measurement temperature. The test dose was approximate to the expected De, and a 450 °C heat was given at end of each cycle to minimize signal build-up. Based on signals strength and dose recovery test, temperatures of 235 and 255 °C were selected for the ITL De measurement. A multiple aliquots regenerative protocol has been applied for TL De determination (MAR-TL). The preheat procedure was a cutheat of 235 °C and a second glow TL of 175 Gy was used for normalization. The sensitivity change of first heating to 450 °C was negligible, supported by comparison between additive and regenerative dose growth curves. Based on the natural TL signal and preheat condition studies, De values at temperatures of 250–330 °C were used for thermochronological study. These two protocols were applied to rock samples collected at different elevations from Nujiang River (also called Salween River) valley slope. The SAR-ITL gave De results consistent with the MAR-TL at temperatures of 40–50 °C higher. The results clearly demonstrate the differences in the thermal histories between the analyzed samples. The SAR-ITL and MAR-TL protocols were both found to be suitable for application in thermochronology.-
dc.languageeng-
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/radmeas-
dc.relation.ispartofRadiation Measurements-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License-
dc.titleLow temperature thermochronology using thermoluminescence signals from quartz-
dc.typeArticle-
dc.identifier.emailLi, SH: shli@hku.hk-
dc.identifier.authorityLi, SH=rp00740-
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.radmeas.2015.04.011-
dc.identifier.hkuros250470-
dc.identifier.volume81-
dc.identifier.spage92-
dc.identifier.epage97-
dc.publisher.placeUnited Kingdom-

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