| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2009: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2008: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2007: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
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| Research Abstract |
・ We confirmed that Sr isotope ratio of an animal bone reflects the isotopic ratios of its provenance geology from analysis of modern animal and fish, and geological samples.
・ Some human bone and tooth samples excavated from archaeological sites in the Yuigahama area, Kamakura, Japan were measured for Sr isotope ratios. Diagenetic Sr had completely replaced biogenic Sr in the bones, while biogenic Sr could remain in the teeth enamel and be used for characterizing past human migration and mobility.
・ We have set about making geochemical map of Sr isotope ratios in all Japan, which is necessary for Sr isotope analysis of archaeological skeletons.
・ A small-mass bone sample preparation system was investigated for ^<14>C bone dating with high accuracy and precision.
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