| Budget Amount *help |
¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2018: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2016: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Outline of Final Research Achievements |
We performed analysis regarding the excavation of the Kamuitapukopushita site in Date City, resulting in the findings (1) - (4) below.
(1) The Usu area was determined to have been hit by a pyroclastic surge during the Mt Usu eruption in 1663. (2) From the analysis results of plant opal, the amount of snow fall until around 1663 was possible less than previous years. It is assumed to be related to a weaker inflow of the Tsushima warm current. (3) Radiocarbon dating by AMS method was used on the bones of a sea otter. The calibrated age indicated cold minimum. This was possible that cold period extended the southern limit of habitat range southward. (4) Regarding the remains of a field from 1640 to 1663, remains which could possibly be farming trace, shell mound and postholes which may have been a part of Chise (Ainu traditional house) were discovered. This elucidate the living conditions of the Ainu in the Little ice age,large eruption.
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