Conference paper · Journal article
Luminescence characteristics of quartz from Hsuehshan Range (Central Taiwan) and implications for thermochronometry
The mountain building processes in Taiwan are currently among the most rapid in the world. However, the spatial and temporal dynamics of this orogen are still poorly resolved within the <0.5 Ma timescale, reflecting methodological gaps in addressing young and rapid bedrock cooling by erosion. Optically Stimulated Luminescence (OSL) from quartz is an emerging thermochronometer that could potentially provide valuable low-temperature markers on a ~0.1 Ma timescale.
Here we study four meta-sandstone samples from the Hsuehshan Range in central Taiwan. We characterize the OSL from these samples in terms of feldspar contamination, saturation dose, signal components, and thermal stability. We conclude that the OSL is dominated by the fast component, and is therefore amenable to dose measurement using the SAR protocol.
Based on the luminescence characteristics and ambient dose rate, we suggest that these samples may be valuable for evaluating recent cooling rates exceeding 360 ± 100 C/Ma, in places where the alternative thermal scenarios (instantaneous cooling or prolonged isothermal storage) may be ruled out by external geological constraints.
Language: | English |
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Year: | 2015 |
Pages: | 104-109 |
Proceedings: | 14th International Conference on Luminescence and Electron Spin Resonance Dating |
ISSN: | 18790925 and 13504487 |
Types: | Conference paper and Journal article |
DOI: | 10.1016/j.radmeas.2015.03.002 |
ORCIDs: | Jain, Mayank , 0000-0001-5559-1862 and 0000-0003-3095-3868 |