Overview of thermochronological studies in and around the Japan Arc; towards Thermo2025 Conference in Kanazawa, Japan
- 1Kyoto University, Graduate School of Sciences, Geology and Mineralogy, Kyoto, Japan (tagami.takahiro.3z@kyoto-u.ac.jp)
- 2Kanazawa University, Kanazawa, Japan (hasebe@staff.kanazawa-u.ac.jp)
- 3Tono Geoscience Center, Japan Atomic Energy Agency, Toki, Japan (sueoka.shigeru@jaea.go.jp)
Recent progress of low-temperature thermochronology enables to analyze uplift-exhumation-cooling histories of the island-arc mountains with good confidence. This is particularly fruitful for studying the topographic evolution of the Japan Arc, because many of the Japanese mountains are started to uplift in recent time (e.g., late Pliocene to Quaternary) after an extended period of tectonic quiescence, and hence the resultant amount of total denudation is relatively small. The utility of the approach was first demonstrated by elucidating the uplift-exhumation-cooling process for some of the Japan Alps, in which average topographic changes of the tilted mountain block were quantitatively reconstructed by low-temperature thermochronology (Ref. 1-2). Such analyses also allow to estimate the background paleo-depth of neo-tectonic faulting episodes.
In this presentation, we highlight recent and ongoing important thermochronological research in and around the Japan Arc (Ref. 3-5). In addition, we will promote the Thermo2025 conference and introduce its preliminary plans. The International Conference on Thermochronology has been held biyearly around the world and the International Standing Committee on Thermochronology (ISCT) determined that the 19th conference (Thermo2025) will be held in Kanazawa, Japan, on September 14-20th, 2025 (https://isct.sedoo.fr/meetings-2/). Then, the local organizing committee, including the authors, have promoted the preparation of the conference in partnership with the domestic geoscience societies and international thermochronological communities. Pre-registration of Thermo2025 is now being accepted at the website (https://smartconf.jp/content/thermo2025). Those who are interested in the conference can soon receive the announcements by pre-registration.
References
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. and Tagami, T., Island Arc 28, 1-8 (2019).
4. Fukuda, S. et al. Earth Planet Space, 72, 1-19 (2020).
5. King, G.E. et al. Geology, doi.org/10.1130/G50599.1 (2022).
How to cite: Tagami, T., Hasebe, N., and Sueoka, S.: Overview of thermochronological studies in and around the Japan Arc; towards Thermo2025 Conference in Kanazawa, Japan, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-13936, https://doi.org/10.5194/egusphere-egu24-13936, 2024.
