2:30 PM - 2:45 PM
[STT53-04] Luminescence chronology of the Middle Pleistocene marine and fluvial terraces in northern Japan using pIRIR dating
Keywords:pIRIR dating, northern Japan, marine terrace, fluvial terrace, Middle Pleistocene
In Tonbetsu plain, northern Hokkaido, the pIRIR ages from the higer marine terraces are ca.340 -370 ka, which yielded ages corresponding to MIS 9, respectively. In Setana plain, in southeastern Hokkaido, the pIRIR ages from the Oyachi marine terraces are MIS 7. In addition, pIRIR ages from upper Setana formation, basement of Tonke-gawa fluvial terraces, are ca. 400 ka. These pIRIR ages indicate that upper limit age of Setana formation and development of landforms after the Middle Pleistocene in Setana plain. I will also introduce pIRIR dating results and it’s meanings of marine / fluvial terraces of the Middle Pleistocene, northern Honshu Island.
Buylaert et al., (2009) Radiat. Meas. 44, 560–565.; Thomsen et al.(2008) Radiation Measurements, 43, 1474-1486.