Distinguishing quartz and feldspar in single grain luminescence measurements

GAT Duller

doi:10.1016/S1350-4487(02)00170-1

Distinguishing quartz and feldspar in single grain luminescence measurements

GAT Duller^*

^*Corresponding author for this work

Department of Geography and Earth Sciences

Research output: Contribution to journal › Article › peer-review

894 Citations (Scopus)

Abstract

Luminescence dating of single grains requires a method of distinguishing between quartz and feldspar based solely on their luminescence behaviour. Several methods are tested, including the shape of optically stimulated luminescence (OSL) decay curve, the effect of infrared stimulation upon the OSL signal, and the change in OSL decay curve shape and OSL intensity as a function of the temperature of the sample during stimulation. Of these, the last requires a large number of additional measurements, whilst the first is a poor discriminant. The most efficient means of distinguishing quartz and feldspar grains is by taking the ratio of the OSL signal when measured with and without prior infrared stimulation. This is termed the OSL IR depletion ratio.

Original language	English
Pages (from-to)	161-165
Number of pages	5
Journal	Radiation Measurements
Volume	37
Issue number	2
DOIs	https://doi.org/10.1016/S1350-4487(02)00170-1
Publication status	Published - Apr 2003

Keywords

OSL

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abstract = "Luminescence dating of single grains requires a method of distinguishing between quartz and feldspar based solely on their luminescence behaviour. Several methods are tested, including the shape of optically stimulated luminescence (OSL) decay curve, the effect of infrared stimulation upon the OSL signal, and the change in OSL decay curve shape and OSL intensity as a function of the temperature of the sample during stimulation. Of these, the last requires a large number of additional measurements, whilst the first is a poor discriminant. The most efficient means of distinguishing quartz and feldspar grains is by taking the ratio of the OSL signal when measured with and without prior infrared stimulation. This is termed the OSL IR depletion ratio.",

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AB - Luminescence dating of single grains requires a method of distinguishing between quartz and feldspar based solely on their luminescence behaviour. Several methods are tested, including the shape of optically stimulated luminescence (OSL) decay curve, the effect of infrared stimulation upon the OSL signal, and the change in OSL decay curve shape and OSL intensity as a function of the temperature of the sample during stimulation. Of these, the last requires a large number of additional measurements, whilst the first is a poor discriminant. The most efficient means of distinguishing quartz and feldspar grains is by taking the ratio of the OSL signal when measured with and without prior infrared stimulation. This is termed the OSL IR depletion ratio.

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JO - Radiation Measurements

JF - Radiation Measurements

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Distinguishing quartz and feldspar in single grain luminescence measurements

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