@article{oai:nagoya.repo.nii.ac.jp:00011837,
 author = {渡邊, 隆広 and WATANABE, Takahiro and 中村, 俊夫 and NAKAMURA, Toshio and 西村, 弥亜 and NISHIMURA, Mitsugu and 河合, 崇欣 and KAWAI, Takayoshi},
 journal = {名古屋大学加速器質量分析計業績報告書},
 month = {Mar},
 note = {シベリア南部に位置するバイカル湖 (Academician ridge)から採取されたVER98-1 St.6堆積物試料の放射性炭素年代測定を行った。VER98-1 St6 Pilot (gravity) Core試料の平均堆積速度は5.7cm/1000yr(29.1-1.6ka BP)であり、同じアカデミシャンリッジから採取したVER98-1 St5 Pilot (gravity) Core試料の平均堆積速度とほぼ一敦した(5.5cm/1000yr, 27.8-3.4ka BP)。年代測定結果から、寒冷期から温暖期への気候遷移期間において、急激な堆積速度の変化と年代値の深さ方向での逆転が認められた。この結果は、気候遷移期において湖底へ運ばれる有機物の供給源が一時的に変化した可能性を示唆する。, In this study, high-time resolution dataset of AMS radiocarbon ages of the VER98-1 St.6 (Academician ridge, Lake Baikal) sediment core was provided for the paleo-climatic studies. Lake Baikal is ancient large freshwater lake in east Eurasia. Radiocarbon dating was performed for total organic materials in the upper part of the VER 98-1 St.6 Pilot (gravity) core (from 165 to 1 cm in depth) by an accelerator mass spectrometry (AMS) system at the Center for Chronological Research, Nagoya University. In this study, radiocarbon dating reveals that the VER 98-1 St.6 sediment cores contain a record from last glacial period to present, over the past 29 ka BP. The average linear sedimentation rate of VER98-1 St.6 Pilot core from Lake Baikal (during 29.1-1.6 ka BP) was estimated to be 5.7 cm/1000 yr based on the conventional ^<14>C ages. The sedimentation rate of VER98-1 St.6 Pilot core was consistent with that of VER98-1 St.5 Pilot core from Academician ridge, Lake Baikal (〜5.5 cm/1000 yr, Watanabe et al., submitted). During climate transition period from glacial to interglacial periods (〜14.7-11.8 ka BP), sedimentation rate changes and dating reversal (81-76 cm in depth) were observed in the VER98-1 St.6 sediment core. This result could be caused by the large influx of land-derived materials and/or changes in sources of organic materials in the sediments during climate transition period., 第19回名古屋大学年代測定総合研究センターシンポジウム平成18(2006)年度報告<第2部> Proceedings of the 19th symposiumon on Chronological Studies at the Nagoya University Center for Chronological Research in 2006 日時:平成19 (2007)年1月15日(月)～17日(水) 会場:名古屋大学シンポジオン Date:January15th-17th, 2007 Venue:Nagoya Uhiversity Symposion Hall},
 pages = {172--177},
 title = {シベリア・チベット地域の湖沼から採取した湖底柱状堆積物の放射性炭素年代測定-1 : VER98-1 St.6堆積物試料(ロシア・バイカル湖)を用いた過去約3万年間の古環境変動と堆積速度の復元(第19回名古屋大学年代測定総合研究センターシンポジウム平成18(2006)年度報告,第2部)},
 volume = {18},
 year = {2007}
}