Multi-OSL-thermochronometry of feldspar |
| |
| Institution: | 1. Institute of Earth Surface Dynamics, University of Lausanne, Geopolis, 1015 Lausanne, Switzerland;2. Department of Earth Sciences, ETH, 8092 Zürich, Switzerland;3. Netherlands Centre for Luminescence dating & Soil Geography and Landscape group, Wageningen University, P.O. Box 47, 6700 AA Wageningen, The Netherlands;1. Department of Geography, Royal Holloway University of London, TW20 0EX Egham, United Kingdom;2. SFF Centre for Early Sapiens Behaviour (SapienCE), University of Bergen, Post Box 7805, 5020 Bergen, Norway;3. Institute of Earth Surface Dynamics, University of Lausanne, 1015 Lausanne, Switzerland;1. Center for Nuclear Technologies, Technical University of Denmark, DTU Risø Campus, Denmark;2. Nordic Laboratory for Luminescence Dating, Department of Geoscience, Aarhus University, Risø Campus, DK-4000, Roskilde, Denmark;1. Centre for Archaeological Science, School of Earth and Environmental Science, University of Wollongong, Wollongong, 2522 NSW, Australia;2. Australian Research Council (ARC) Centre of Excellence for Australian Biodiversity and Heritage, University of Wollongong, Wollongong, NSW 2522, Australia;3. Institute of Nihewan Archaeology, College of History and Culture, Hebei Normal University, 050024 Shijiazhuang, Hebei Province, China;4. MOE Laboratory for Earth Surface Process, Department of Geography, College of Urban and Environmental Sciences, Peking University, 100871 Beijing, China;5. Institute of Geology and Geophysics, Chinese Academy of Sciences, 100029 Beijing, China;6. Cultural Relics of Hebei Province, 050000 Shijiazhuang, China;1. Department of Science, Systems and Models, Roskilde University, Denmark;2. Nordic Laboratory for Luminescence Dating, Department of Geoscience, Aarhus University, Denmark;3. Center for Nuclear Technologies, Technical University of Denmark, DTU Risø Campus, Denmark;4. Institute for Ancient Near Eastern Archaeology, Free University Berlin, Germany;5. DNRF Centre “Glass and Time,” Department of Science, Systems and Models, Roskilde University, Denmark;1. Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, 595 Charles Young Drive East, Box 951567, Los Angeles, CA 90095-1567, USA;2. Department of Geography, Winter Street, University of Sheffield, Sheffield, South Yorkshire, S10 2TN, UK |
| |
| Abstract: | Optically stimulated luminescence (OSL)-thermochronometry has recently been proposed as a tool capable of resolving cooling histories from the top 1–2 km of the Earth's crust. This is beyond the resolution of most low-temperature thermochronometric systems, and it offers a new opportunity to investigate the interactions between climate, tectonics and surface processes over Quaternary timescales. Here we present a multi-OSL-thermochronometer which exploits the different thermal stabilities of different temperature infra-red stimulated luminescence (IRSL) signals from K- and Na-rich K-feldspar extracts, utilising the established multi-elevated-temperature (MET) measurement protocol (Li and Li, 2011. Luminescence dating of K-feldspar from sediments: A protocol without anomalous fading correction. Quaternary Geochronology 6, 468–479). The theoretical aspects of multi-OSL-thermochronometry are discussed, prior to validation with an example from the eastern Himalayan syntaxis, one of the most rapidly exhuming settings on Earth. Our results show that multi-OSL-thermochronometry of feldspar is able to resolve rock cooling histories over timescales ≤0.2 Ma and provides much tighter constraint on late-stage cooling histories than single-system OSL-thermochronometry. |
| |
| Keywords: | Multi-OSL-Thermochronometry Feldspar Luminescence MET IRSL |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
