{"_buckets": {"deposit": "fcf485ac-429f-4aff-ae95-f7accca60533"}, "_deposit": {"id": "26298", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "26298"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00026298"}, "item_9_alternative_title_19": {"attribute_name": "\u305d\u306e\u4ed6\u306e\u8a00\u8a9e\u306e\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_alternative_title": "Significance of Precise Age Determination of the Baitoushan-Tomakomai Tephra"}]}, "item_9_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2018-03-31", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "34", "bibliographicPageStart": "30", "bibliographicVolumeNumber": "2", "bibliographic_titles": [{"bibliographic_title": "\u540d\u53e4\u5c4b\u5927\u5b66\u5e74\u4ee3\u6e2c\u5b9a\u7814\u7a76"}]}]}, "item_9_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "The eruption age of Baitoushan-Tomakomai tephra has been determined by various methods such as varve chronology and 14C wiggle-matching. Recently, the 14C spike matching revealed the eruptive year as late AD 946. The discovery of AD 774\u2013775 14C spike (M12 peak) provides new technique to obtain precise date and reveal regional 14C offset more clearly. 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