| Project/Area Number |
11680096
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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 |
自然地理学
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| Research Institution | Nara Women's University |
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Principal Investigator |
MASASHI Takada Nara Women's University, Fac. of Letters, Associate Professor, 文学部, 助教授 (60273827)
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| Co-Investigator(Kenkyū-buntansha) |
NAGATOMO Tsuneto Nara Univ. of Education, Professor, 教育学部, 教授 (80031582)
OKADA Atsumasa Kyoto Univ., Division of Geophysics, Professor, 大学院・理学研究科, 教授 (90086174)
SOHMA Hidehiro Nara Women's University, Fac. of Letters, Professor, 文学部, 教授 (90196999)
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| Project Period (FY) |
1999 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2001: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥2,800,000 (Direct Cost: ¥2,800,000)
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| Keywords | middle and upper terraces / Kinki region / dating / OSL / luminescence / terrace deposits |
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| Research Abstract |
We have investigated optically stimulated luminescence (OSL) ages of the middle and upper terrace deposits in the Kinki region, Japan, that are related to estimaion for the speed of crustal movement and for the activity of Quaternary fault movements. Though we have clarified several provisional results, until now we have not got accurate nor precise OSL ages yet. Generally speaking, most of the provisional ages obtained here seem to be underestimated. IRSL, BLSL and TL growth curves of samples, however, give us some suggestions that it is due to dose response changes and to fading of OSL signals after artificial irradiations. Overcoming these problems, we need to introduce the machine which can measure OSL signals soon after artificially irradiation, and to investigate proheat temperature conditions, excessive spurious luminescence and anomalous fading of the samples.
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