An improved radiofluorescence single-aliquot regenerative dose protocol for K-feldspars

Marine Frouin, Sébastien Huot, Sebastian Kreutzer, Christelle Lahaye, Michel Lamothe, Anne Philippe, Norbert Mercier

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid


Measuring the infrared radiofluorescence (IR-RF) signal of K-feldspars, which is thought to be not affected by any anomalous fading, potentially provides a promising alternative dating approach to the more studied IR and pIRIR signals. Here we report a series of experiments aimed at characterising the IR-RF signal, which led us to propose an improved IR-SAR (Infrared Radiofluorescence Single-Aliquot Regeneration) protocol. In comparison with the original protocol from Erfurt and Krbetschek (2003a), the proposed one relies on IR-RF signal measurements and bleaching experiments conducted at elevated temperatures. Stabilising the temperature at 70 °C during the measurements helps keeping the very shallow traps empty during the process. Internal protocol tests and dating applications are presented using known age samples. We show that the improved protocol (named RF70) is capable to reproduce known age results within uncertainties. However, considering the slow bleaching rate of the RF70 signal, the multi-grain approach is likely not the most suitable for the De determination of complex samples
Iaith wreiddiolSaesneg
Tudalennau (o-i)13-24
Nifer y tudalennau12
CyfnodolynQuaternary Geochronology
Dyddiad ar-lein cynnar18 Tach 2016
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 01 Maw 2017
Cyhoeddwyd yn allanolIe

Ôl bys

Gweld gwybodaeth am bynciau ymchwil 'An improved radiofluorescence single-aliquot regenerative dose protocol for K-feldspars'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.

Dyfynnu hyn