Titre

Direct and indirect luminescence dating of tephra: A review

Type
article
Institution
Externe
Périodique
Auteur(s)
Bösken, Janina Johanna
Auteure/Auteur
Schmidt, Christoph
Auteure/Auteur
Liens vers les personnes
ISSN
0267-8179
Statut éditorial
Publié
Date de publication
2020-01
Volume
35
Numéro
1-2
Première page
39
Dernière page/numéro d’article
53
Peer-reviewed
Oui
Langue
anglais
Résumé
In Quaternary studies, tephras are widely used as marker horizons to correlate geological deposits. Therefore, accurate and precise dating is crucial. Among radiometric dating techniques, luminescence dating has the potential to date tephra directly using glass shards, volcanic minerals that formed during the eruption or mineral fragments that originate from the shattered country rock. Moreover, sediments that frame the tephra can be dated to attain an indirect age bracket. A review of numerous luminescence dating studies highlights the method's potential and challenges. While reliable direct dating of volcanic quartz and feldspar as a component in tephra is still methodically difficult mainly due to thermal and athermal signal instability, red thermoluminescence of volcanic quartz and the far-red emission of volcanic feldspar have been used successfully. Furthermore, the dating of xenolithic quartz within tephra shows great potential. Numerous studies date tephra successfully indirectly. Dating surrounding sediments is generally straightforward as long as samples are not taken too close to the tephra horizons. Here, issues arise from the occurrence of glass shards within the sediments or unreliable determination of dose rates. This includes relocation of radioelements, mixing of tephra into the sediment and disregarding different dose rates of adjacent material.
Sujets

loess

Quaternary

red thermoluminescenc...

tephrochronology

volcanic glass

PID Serval
serval:BIB_F9DAD449C851
DOI
WOS
Permalien
URL éditeur
Open Access
Oui
Date de création
2020-10-17T18:29:11.948Z
Date de création dans IRIS
2025-05-21T06:55:19Z
Fichier(s)
En cours de chargement...
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Nom

J Quaternary Science - 2019 - B sken - Direct and indirect luminescence dating of tephra A review.pdf

Version du manuscrit

published

Licence

https://creativecommons.org/licenses/by-nc/4.0

Taille

1.82 MB

Format

Adobe PDF

PID Serval

serval:BIB_F9DAD449C851.P001

Somme de contrôle

(MD5):29af36d68a1b487ac42d8acd6ccb073c