H (Human Geosciences ) » H-QR Quaternary research
[H-QR04] Innovative Applications of Trapped-Charge Dating to Quaternary Geochronology
convener:Toru Tamura(Institute of Geology and Geoinformation Geological Survey of Japan, AIST), Shin Toyoda(Department of Applied Physics, Faculty of Science, Okayama University of Science), Yuji Ishii(National Institute of Advanced Industrial Science and Technology), Sumiko Tsukamoto(Leibniz Institute for Applied Geophysics )
Trapped-Charge Dating (TCD) is a general term for absolute dating methods that use trapped electrons in crystal lattice, such as optically-stimulated luminescence (OSL) and electron spin resonance (ESR) dating. TCD presented one of the most successful progresses in geoscience and archaeology over the last 20 years, and still has a great potential in innovative applications. Technical progresses in optical dating of quartz and feldspar grains enables determination of depositional ages in a broad range from 10 to 500,000 years. Rock surface dating provides a way to determine surface exposure ages as well as burial ages of gravels. Thermochronometry with TCD is a state of the art method to determine the degradation and uplift rates on high temporal resolution. Further efforts have been made on TCD for extracting chronological information of past seismic activities. Innovative IRPL (infrared photoluminescence) method has also recently been invented. This session covers a wide range of TCD applications to problems in Quaternary geochronology as well as its technical advances. Comprehensive reviews on successful TCD applications and contributions of unestablished, challenging researches are also welcome.
*Toru Tamura1,4, Hiroko Okazaki2, Hiroomi Nakazato3, Tomonori Naya1, Rei Nakashima1 (1.Institute of Geology and Geoinformation Geological Survey of Japan, AIST, 2.Natural Hisory Museum and Institute, Chiba, 3.The National Agriculture and Food Research Organization, 4.Graduate School of Frontier Sciences, The University of Tokyo)
[HQR04-04] Testing the reliability of the fading correction near saturation for the Infrared stimulated luminescence dating
*Kiriha Tanaka1, Jun Muto1, Yasuo Yabe2, Toshitaka Oka3, Hiroyuki Nagahama1 (1.Earth Science, Graduate School of Science, Tohoku University, 2.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University, 3.Japan Atomic Energy Agency)
*Shin Toyoda1 (1.Department of Applied Physics, Faculty of Science, Okayama University of Science)