Luminescence property of volcanic quartz and the use of red isothermal TL for dating tephras

S. Tsukamoto; A.S. Murray; S. Huot; T. Watanuki; P.M. Denby; Lars Bøtter-Jensen

doi:10.1016/j.radmeas.2006.07.008

Luminescence property of volcanic quartz and the use of red isothermal TL for dating tephras

S. Tsukamoto, A.S. Murray, S. Huot, T. Watanuki, P.M. Denby, Lars Bøtter-Jensen

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

An optically stimulated luminescence (OSL) age obtained from a Japanese tephra using quartz phenocrysts severely underestimated the known age. The characteristics of the OSL signals were investigated in order to understand the cause of the underestimation; the main OSL component of volcanic quartz has a thermodynamic lifetime of about 1700 years at room temperature, and it also seems to fade anomalously (i.e. athermally). Measurement of conventional red thermoluminescence, (RTL) using a Ga-As photomultiplier tube was difficult due to the presence of a strong thermal background, although RTL gave an age consistent with the independent age. Furthermore, red isothermal TL (RITL) at 380 degrees C allowed the RTL signal to be separated from to the thermal background, and RITL ages of three volcanic quartz samples show good agreement with independent ages. (C) 2006 Elsevier Ltd. All rights reserved.

Original language	English
Journal	Radiation Measurements
Volume	42
Issue number	2
Pages (from-to)	190-197
ISSN	1350-4487
DOIs	https://doi.org/10.1016/j.radmeas.2006.07.008
Publication status	Published - 2007

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title = "Luminescence property of volcanic quartz and the use of red isothermal TL for dating tephras",

abstract = "An optically stimulated luminescence (OSL) age obtained from a Japanese tephra using quartz phenocrysts severely underestimated the known age. The characteristics of the OSL signals were investigated in order to understand the cause of the underestimation; the main OSL component of volcanic quartz has a thermodynamic lifetime of about 1700 years at room temperature, and it also seems to fade anomalously (i.e. athermally). Measurement of conventional red thermoluminescence, (RTL) using a Ga-As photomultiplier tube was difficult due to the presence of a strong thermal background, although RTL gave an age consistent with the independent age. Furthermore, red isothermal TL (RITL) at 380 degrees C allowed the RTL signal to be separated from to the thermal background, and RITL ages of three volcanic quartz samples show good agreement with independent ages. (C) 2006 Elsevier Ltd. All rights reserved.",

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T1 - Luminescence property of volcanic quartz and the use of red isothermal TL for dating tephras

AU - Tsukamoto, S.

AU - Murray, A.S.

AU - Huot, S.

AU - Watanuki, T.

AU - Denby, P.M.

AU - Bøtter-Jensen, Lars

PY - 2007

Y1 - 2007

N2 - An optically stimulated luminescence (OSL) age obtained from a Japanese tephra using quartz phenocrysts severely underestimated the known age. The characteristics of the OSL signals were investigated in order to understand the cause of the underestimation; the main OSL component of volcanic quartz has a thermodynamic lifetime of about 1700 years at room temperature, and it also seems to fade anomalously (i.e. athermally). Measurement of conventional red thermoluminescence, (RTL) using a Ga-As photomultiplier tube was difficult due to the presence of a strong thermal background, although RTL gave an age consistent with the independent age. Furthermore, red isothermal TL (RITL) at 380 degrees C allowed the RTL signal to be separated from to the thermal background, and RITL ages of three volcanic quartz samples show good agreement with independent ages. (C) 2006 Elsevier Ltd. All rights reserved.

AB - An optically stimulated luminescence (OSL) age obtained from a Japanese tephra using quartz phenocrysts severely underestimated the known age. The characteristics of the OSL signals were investigated in order to understand the cause of the underestimation; the main OSL component of volcanic quartz has a thermodynamic lifetime of about 1700 years at room temperature, and it also seems to fade anomalously (i.e. athermally). Measurement of conventional red thermoluminescence, (RTL) using a Ga-As photomultiplier tube was difficult due to the presence of a strong thermal background, although RTL gave an age consistent with the independent age. Furthermore, red isothermal TL (RITL) at 380 degrees C allowed the RTL signal to be separated from to the thermal background, and RITL ages of three volcanic quartz samples show good agreement with independent ages. (C) 2006 Elsevier Ltd. All rights reserved.

KW - Diagnostik og behandling

U2 - 10.1016/j.radmeas.2006.07.008

DO - 10.1016/j.radmeas.2006.07.008

M3 - Journal article

VL - 42

SP - 190

EP - 197

JO - Radiation Measurements

JF - Radiation Measurements

SN - 1350-4487

IS - 2

ER -

Luminescence property of volcanic quartz and the use of red isothermal TL for dating tephras

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