Applicability of feldspar OSL dating; A Case study of dated MIS 5c marine terrace in the Suzu, Noto Peninsula

Ogata, Manabu ; Nishiyama, Nariaki  ; Matsushi, Yuki*; Uchida, Mao; Komatsu, Tetsuya  ; Sueoka, Shigeru   

Optically stimulated luminescence (OSL) dating of feldspar is one of the most promising methods for determining the emergence ages of Middle-Late Pleistocene marine terraces on account of the following reasons: (1) feldspar is ubiquitous in Quaternary sediments; (2) the applicable dating range extends from several thousand to several hundred thousand years; and (3) the OSL signal is reset during sediment transport and exposure to sunlight, and is therefore capable of constraining burial (depositional) ages. Previous studies have demonstrated the application of feldspar OSL dating to Japanese marine terraces by cross-checking with the known tephrochronological framework. However, there are still few examples, and thus the accumulation of the case studies is required to improve the reliability. In this presentation, we will present the results of feldspar OSL dating of MIS 5c marine terrace sediments in Suzu, Noto Peninsula.