{"_buckets": {"deposit": "89acac96-2783-4ddb-bf7b-5ff4a1837c1e"}, "_deposit": {"id": "12856", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "12856"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00012856"}, "item_9_alternative_title_19": {"attribute_name": "\u305d\u306e\u4ed6\u306e\u8a00\u8a9e\u306e\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_alternative_title": "Radiocarboin dating of Holocene soils from an island in Lake Pumoyum Co (southeastern Tibetan Plateau)"}]}, "item_9_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2010-03", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "86", "bibliographicPageStart": "80", "bibliographicVolumeNumber": "21", "bibliographic_titles": [{"bibliographic_title": "\u540d\u53e4\u5c4b\u5927\u5b66\u52a0\u901f\u5668\u8cea\u91cf\u5206\u6790\u8a08\u696d\u7e3e\u5831\u544a\u66f8"}]}]}, "item_9_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "Soil samples from an 85-cm-long continuous section (PY608ES, OS09-B) were collected from an island in Lake Pumoyum Co (southeastern Tibetan Plateau, -5020 m asl). To estimate past environmental conditions of Lake Pumoyum Co during the Holocene, we analyzed ^\u003c14\u003eC ages, stable carbon isotope compositions, and total organic carbon/total nitrogen (TOC/TN) atomic ratios of the soil samples. The ^\u003c14\u003eC measurements were performed with the Tandetron accelerator mass spectrometry system at the Center for Chronological Research, Nagoya University. The ^\u003c14\u003eC concentration in the surface layer (101 percent modern carbon; 5-10 cm soil depth) was nearly modern. A ^\u003c14\u003eC chronology of sequence indicated that continuous soil development began on the island in Lake Pumoyum Co at ca. 5000-6000 cal BP (at 63 cm soil depth, the top of a gravel layer). These results may reflect a decrease in the lake level in the middle Holocene. 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