<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>An increasing amount of evidence shows that the use of feldspars in luminescence dating may suffer from significant age underestimates, which are thought to result from anomalous fading. In the hope of finding a solution to the problem we undertook physical investigations of kinetics and temperature dependencies of tunnel afterglow of these minerals. As a result, the method of the direct detection of the tunnel transitions from the dosimetric traps is proposed. Some other relevant results obtained are also presented and discussed. Particularly, the probable reasons of absence of effects of anomalous fading in the feldspar samples investigated in the present work are elucidated.</p></abstract>

An increasing amount of evidence shows that the use of feldspars in luminescence dating may suffer from significant age underestimates, which are thought to result from anomalous fading. In the hope of finding a solution to the problem we undertook physical investigations of kinetics and temperature dependencies of tunnel afterglow of these minerals. As a result, the method of the direct detection of the tunnel transitions from the dosimetric traps is proposed. Some other relevant results obtained are also presented and discussed. Particularly, the probable reasons of absence of effects of anomalous fading in the feldspar samples investigated in the present work are elucidated.

Anomalous Fading of Ir-Stimulated Luminescence from Feldspar Minerals: Some Results of the Study

Research Laboratory for Quaternary Geochronology, Institute of Geology, Tallinn University of Technology, Ehitajate Rd. 5, 19086 Tallinn, Estonia

Institute of Experimental Physics and Technology, University of Tartu, Tähe 4, 51010 Tartu, Estonia

Geochronometria

An increasing amount of evidence shows that the use of feldspars in luminescence dating may suffer from significant age underestimates, which are thought to...

Anomalous Fading of Ir-Stimulated Luminescence from Feldspar Minerals: Some Results of the Study

Publié en ligne: 21 févr. 2007

Pages: 11 - 17

DOI: https://doi.org/10.2478/v10003-007-0007-0

Mots clés
IR-OSL dating, feldspars, anomalous fading, ionic processes

This content is open access.

Anomalous Fading of Ir-Stimulated Luminescence from Feldspar Minerals: Some Results of the Study

Publié en ligne: 21 févr. 2007

Pages: 11 - 17

DOI: https://doi.org/10.2478/v10003-007-0007-0

Mots clésIR-OSL dating, feldspars, anomalous fading, ionic processes

This content is open access.

Mots clés
IR-OSL dating, feldspars, anomalous fading, ionic processes