濃尾平野北東部における埋積浅谷の発達と地形環境の変化

• 小野 映介

  名古屋大学大学院文学研究科

• 海津 正倫

  名古屋大学大学院環境学研究科

• 川瀬 久美子

  愛媛大学教育学部

書誌事項

タイトル別名

• Landform Evolution of Shallow Buried Valleys in the Alluvial Lowland in the Northeastern Part of the Nobi Plain, Central Japan.
• ノウビ ヘイヤ ホクトウブ ニ オケル タイセキセンコク ノ ハッタツ ト チケイ カンキョウ ノ ヘンカ

抄録

The authors clarified the evolution of shallow buried valleys in the Nobi plain, especially in the archaeological sites of Kadomanuma and Mabikiyokote where these valleys typically develop.<br>The sites are located in the central Nobi plain near the boundary of the alluvial fan and the floodplain area; the buried shallow valleys dissect and develop on the well-developed sand layer which is related to the “upper sand layer” in the coastal region.<br>Based on close observation and the radiocarbon ages of sediments, the following results are clarified: The sand layer was dissected at ca. 3, 000-2, 400yrs BP, and shallow valleys were formed. These valleys were buried by ca. 2, 400-2, 200yrs BP.<br>In addition to these results, the authors clarified the geoenvironmental change in the region based on the geomorphic and geologic information from the surrounding areas. The geoenvironmental change in the region surrounding the Kadomanuma and Mabikiyokote sites is divided into the following four stages:<br>Stage I (3, 300-3, 000yrs BP): End of the deposition of the sand layer which is related to the “upper sand layer” in the coastal region.<br>Stage II (3, 000-2, 400yrs BP): Formation of shallow valleys on the sand layer. Flood sediments can be seen in the valleys, but the surrounding areas are in a stable condition that is characterized by humic or peaty sediments.<br>Stage III (2, 400-2, 200yrs BP): Deposition of sediments in the shallow valleys ceases at the end of this period. Environment of the surrounding area is relatively stable and there is less flooding.<br>Stage IV (2, 200yrs BP-): Active flooding occurs in the region, and the shallow valleys are buried completely.

収録刊行物

• 第四紀研究

  第四紀研究 40 (4), 345-352, 2001

  日本第四紀学会

キーワード

• 濃尾平野
• 埋積浅谷
• 門間沼遺跡
• 馬引横手遺跡
• ¹⁴C年代

詳細情報

• CRID: 1390282681473757440
• NII論文ID: 10007431374
• NII書誌ID: AN0034136X
• DOI: 10.4116/jaqua.40.345
• ISSN: 18818129
• ISSN: 04182642
• ISSN: http://id.crossref.org/issn/04182642
• NDL書誌ID: 5868233
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5868233
• 本文言語コード: ja
• 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