中部日本, 高野層ボーリングコアの全有機炭素含有率変動に基づく更新世後期の古気候変動の高解像度復元

• 田原 敬治

  Graduate School of Science and Technology, Shinshu University

• 公文 富士夫

  Faculty of Science, Shinshu University

• 長橋 良隆

  Faculty of Symbiotic Systems Science, Fukushima University

• 角田 尚子

  Graduate School of Science and Technology, Shinshu University

• 野末 泰宏

  Graduate School of Science and Technology, Shinshu University

書誌事項

タイトル別名

• High-resolution reconstruction of late Pleistocene climate based on TOC content in a 54 m sediment core drilled from Takano Formation, central Japan

抄録

The Takano Formation of late Pleistocene lacustrine sediment is distributed at the southern Nagano City. The TKN-2004 core, 53.88 m long, was taken at the central part of the basin, and is composed mostly of homogenous clayey silt. Age of the sediment was estimated from the relationship between radiometric ages and calibrated depths of DKP, Aso-4, K-Tz, Ata and Aso-2 tephras, postulating that the sedimentation rate is constant.<br>Paleoclimate from 169 ka to 37 ka was reconstructed on the basis of TOC content variation. The long-term TOC fluctuations are concordant with the SPECMAP curve. This result is supported by pollen composition. The short-term variations are similar to stadial-interstadial cycles in the Greenland ice cores, and most of warm peaks can be correlated with IS 9 to 25.

収録刊行物

• 堆積学研究

  堆積学研究 64 37-41, 2007

  日本堆積学会

キーワード

• late Pleistocene
• paleoclimate change
• SPECMAP
• stadial-interstadial
• Takano Formation
• TOC

詳細情報

• CRID: 1390282680196664192
• NII論文ID: 130004543383
• NII書誌ID: AA11155966
• DOI: 10.4096/jssj.64.37
• COI: 1:CAS:528:DC%2BD2sXhtVGjtrnK
• ISSN: 18829457
• ISSN: 1342310X
• NDL書誌ID: 8849894
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8849894
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可