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Age of glacial and periglacial landforms in northern Hokkaido, Japan, using OSL dating of fine grain quartz |
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| Authors: | R Kondo S Tsukamoto H Tachibana Y Miyairi Y Yokoyama |
| Institution: | aDepartment of Geography, Meiji University, Chiyoda, Tokyo 101-8301, Japan bInstitute of Geography and Earth Sciences, University of Wales, Aberystwyth, Wales SY23 3DB, UK cDepartment of Earth and Planetary Science, University of Tokyo, Bunkyo, Tokyo 113-0033, Japan |
| Abstract: | The timing of glacial advances, periglacial phenomena, and the ages of two marker tephras in northern Hokkaido were estimated by OSL dating. It appears that the glacier of Yamunai 2 stage on Rishiri Island expanded between 24 and 15 ka. In northern Hokkaido, OSL ages indicate ice wedge formation during the period 24–18 ka. These results indicate that both the glacial advance and the development of ice wedges were synchronous phenomena relating to the Last Glacial Maximum. |
| Keywords: | OSL dating Northern Hokkaido Glacial and periglacial landforms Fine grain quartz |
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