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Abstrakty
The use of feldspar for luminescence dating has been restricted because of anomalous fad-ing. This has made its application to several important geological problems such as volcanic terrains difficult. Presently, two correction procedures are used to correct for anomalous fading. The present study tests these correction procedures using volcanic samples of known ages spanning the time peri-od of 400 ka to 2.2 Ma. These correction procedures provided grossly underestimated ages (up to 60%). The possible causes for the underestimation are discussed.
Słowa kluczowe
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Czasopismo
Rocznik
Tom
Strony
223--230
Opis fizyczny
Bibliogr. 12 poz., wykr.
Twórcy
autor
autor
autor
autor
autor
- Physical Research Laboratory, Navrangpura, Ahmedabad - 380 009, India, morthekai@gmail.com
Bibliografia
- Aitken MJ, 1985. Thermoluminescence dating. Academic Press, London: 359pp.
- Auclair M, Lamothe M and Huot S, 2003. Measurement of anomalous fading for feldpsar IRSL using SAR. Radiation Measurements 37(4-5): 487-492, DOI 10.1016/S1350-4487(03)00018-0.
- Azevedo JMM and Portugal Ferreira MR, 2006. The volcano-techtonic evolution of Flores Island, Azores (Portugal). Journal of Volcanology and Geothermal Research 156(1-2): 90-112, DOI 10.1016/j.jvolgeores.2006.03.011.
- Chandrasekhar S, 1943. Stochastic Problems in Physics and Astronomy. Reviews of Modern Physics 15(1): 86-87.
- Guerin G and Valladas G, 1980. Thermoluminescence dating of volcanic plagioclases. Nature 286(5774): 697-699, DOI 10.1038/286697a0.
- Huntley DJ, 2006. An explanation of the power-law decay of luminescence. Journal of Physics: Condensed Matter 18(4): 1359-1365, DOI 10.1088/0953-8984/18/4/020.
- Huntley DJ and Lamothe M, 2001. Ubiquity of anomalous fading in K-feldspars and the measurement and correction for it in optical dating. Canadian Journal of Earth Sciences 38(7): 1093-1106, DOI 10.1139/e01-013.
- Kars RH and Wallinga J, 2009. IRSL dating of K-feldspars: Modelling natural dose response curves to deal with anomalous fading and trap competition. Radiation Measurements 44(5-6): 594-599, DOI 10.1016/j.radmeas.2009.03.032.
- Kars RH, Wallinga J and Cohen KM, 2008. A new approach towards anomalous fading correction for feldspar IRSL dating – tests on samples in field saturation. Radiation Measurements 43(2-6): 786-790, DOI 10.1016/j.radmeas.2008.01.021.
- Morthekai P, Jain M, Murray AS, Thomsen KJ and Bøtter-Jensen L, 2008. Fading characteristics of Martian analogue materials and the applicability of a correction procedure. Radiation Measurements 43(2-6): 672-678, DOI 10.1016/j.radmeas.2008.02.0.
- Murray AS and Wintle A, 2000. Luminescence dating of quartz using an improved single-aliquot regenerative-dose protocol. Radiation Measurements 32(1): 57-73, DOI 10.1016/S1350-4487(99)00253-X.
- Tsukamoto S, Duller GAT, Wintle A and Muhs D, 2011. Assessing the potential for luminescence dating of basalts. Quaternary Geochronology 6(1): 61-70, DOI 10.1016/j.quageo.2010.04.002.
Typ dokumentu
Bibliografia
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bwmeta1.element.baztech-article-BWMA-0004-0005