Trapped-charge thermochronometry and thermometry : A status review
Trapped-charge dating methods including luminescence and electron spin resonance dating have high potential as low temperature (<100 °C) thermochronometers. Despite an early proof of concept almost 60 years ago, it is only in the past two decades that thermoluminescence (TL), electron-spin-resonance (ESR), and optically stimulated luminescence (OSL), have begun to gain momentum in geological thermochronometry and thermometry applications. Here we review the physics of trapped-charge dating, the studies that led to its development and its first applications for deriving palaeo-temperatures and/or continuous cooling histories. Analytical protocols, which enable the derivation of sample specific kinetic parameters over laboratory timescales, are also described. The key limitation of trapped-charge thermochronometry is signal saturation, which sets an upper limit of its application to <1 Ma, thus restricting it to rapidly exhuming terrains (> 200 °C Ma− 1), or elevated-temperature underground settings (> 30 °C). Despite this limitation, trapped-charge thermochronometry comprises a diverse suite of versatile methods, and we explore potential future applications and research directions.
| Main Authors: | , , , |
|---|---|
| Format: | Article/Letter to editor biblioteca |
| Language: | English |
| Subjects: | Electron spin resonance (ESR), Infra-red stimulated luminescence (IRSL), Low-temperature thermochronometry, Optically stimulated luminescence (OSL), Thermoluminescence (TL), Thermometry, Trapped-charge dating, |
| Online Access: | https://research.wur.nl/en/publications/trapped-charge-thermochronometry-and-thermometry-a-status-review |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|