9:30 AM - 9:45 AM
[SCG57-15] Thermochronologic mapping of the Japan Arc: Toward reconstruction of the long-term uplift-denudation history
Keywords:Thermochronology, Japan Arc, Uplift-denudation
In this presentation, we give brief overviews of thermochronology and tectonic background of the Japan Arc, and then highlight some of the ongoing thermochronologic research projects, such as:
Compilation of previously reported thermochronologic data from the Japan Arc, (U-Th-Sm)/He and fission-track analyses of the NE Japan Arc3, which is a main subaerial part of the overriding plate of the Mega-earthquake epicenter, (U-Th-Sm)/He, fission-track and U-Pb analyses of the Hida Mountain, which is a part of central mountain ranges that are formed by recent collisional convergence between the NE and SW Japan Arcs, and may have suffered an overspread deformation with great strain rates, as deduced from the exposure of youngest granites on the Earth4-5.
1. Sueoka, S. et al. Island Arc 21, 32-52 (2012).
2. Sueoka, S. et al. Journal of Geophysical Research: Solid Earth 122, 6787-6810 (2017).
3. Sueoka, S. et al. Earth, Planets and Space 69, 79 (2017).
4. Ito, H. et al. Scientific Reports 3, 1306 (2013).
5. Ito, H. et al. Scientific Reports 7, 12457 (2017).