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Unravelling rock cooling histories of the Japanese Alps using ESR thermochronometry

ESR熱年代を用いた日本アルプスの岩石の冷却史の解明

Bartz, M.*; King, G.*; Anderson, L.*; Herman, F.*; 末岡 茂  ; 塚本 すみ子*; Ahadi, F.*; Gautheron, C.*; Delpech, G.*; Schwarz, S.*; 田上 高広*

Bartz, M.*; King, G.*; Anderson, L.*; Herman, F.*; Sueoka, Shigeru; Tsukamoto, Sumiko*; Ahadi, F.*; Gautheron, C.*; Delpech, G.*; Schwarz, S.*; Tagami, Takahiro*

Electron spin resonance (ESR) thermochronometry has the potential to resolve continuous erosion histories from rapidly eroding settings over 10$$^{6}$$ time scales. These time periods are defined by persistent oscillations between warm and cold states. However, questions about the relationship between climate and erosion remain unanswered. We further develop ESR thermochronometry of quartz (Al and Ti centres) to answer these questions in the Tateyama region in the Hida Mountains of Japan. In the result, the Al and Ti centres in quartz can successfully be inverted to unravel rock cooling histories. As future work, all ESR signals will be converted together with OSL data, providing further constraints on their thermal histories.

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