Luminescence dating of loam deposits in Paleolithic sites
| Project/Area Number |
13680177
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Cultural property science
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| Research Institution | Hokkaido University of Education |
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Principal Investigator |
GANZAWA Yoshihiro Education Inst., Hakodate, Assistant Professor, 教育学部・函館校, 助教授 (40161400)
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| Project Period (FY) |
2001 – 2002
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| Project Status |
Completed (Fiscal Year 2002)
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| Budget Amount *help |
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2002: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2001: ¥2,800,000 (Direct Cost: ¥2,800,000)
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| Keywords | TL / IRSL dating / Paleolithic site / loam deposit / aeolian clay layer / 風成塵堆積物 / 光ルミネセンス |
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| Research Abstract |
The widespread aeolian clay layers, so-called "loam" which cover the land surface of Japan's islands were investigated from the viewpoints of the long-term influence of aeolian dust transported from inland China since the Last internal-Glacier age. I have also been focusing on the deposits in which many Paleolithic remains were preserved. The clay layers, compared of fine particles of quartz and feldspars, are favorable material for TL/IRSL dating because they had been exposed to sunlight sufficiently through transportation process from inland China to Japan.
An investigation on TL/IRSL dating of poly-mineral 4-11 micron meter component of aeolian deposits, so called "loam" were attempted for a Paleolithic site, Pirika in Hokkaido.
A new designed apparatus inserted BG-39 and U-340 filters were employed for the equivalent dose derived from TL/IRSL determination. Annual dose rates of samples, measured by both AASD and NAA, indicated around 2.0-3.8mGy/year.
The age less than 50ka coincided with the estimated ages derived from the intercalated tephra layers. The experimental ages indicated that TL/IRSL dating would contribute to age determination of Paleolithic sites.
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Report
(3 results)
Research Products
(12 results)
