47・7豪雨による西三河山腹崩壊地域の天然水の水質

• 中村 誠佑

  宮崎大学工学部応用化学科

• 北野 康

  名古屋大学理学部水質研究施設

• 神谷 始

  名古屋大学理学部水質研究施設

書誌事項

タイトル別名

• The chemical compositions of stream waters in an earth flow area (Nishimikawa, Aichi Prefecture)

抄録

An earth flow occurred on 12th to 13th of July, 1972, in more than 3,000 locations in Obara-mura (area: 75km²), Nishimikawa of Aichi Prefecture. Water samples were taken from the earth flow area and analyzed for Na⁺, Ca²⁺, Mg²⁺, Cl^-, HCO₃^-, SO₄^2- and soluble SiO₂. The concentrations of Ca²⁺+Mg²⁺ and HCO₃^- were varied greatly from location to location, indicating the difference of the dissolution of Ca²⁺+Mg²⁺ in waters from clay, sand and rock materials in the different areas. The chemical compositions of the waters indicate that the earth flow occurred only owing to a very heavy rain, and that in some locations a chemical weathering is progressing rather actively to form clay materials under the ground through the interaction of carbonated water with rock materials.

収録刊行物

• 地球化学

  地球化学 6 (1), 21-27, 1973

  一般社団法人日本地球化学会

詳細情報

• CRID: 1390282680719323776
• NII論文ID: 110008679606
• DOI: 10.14934/chikyukagaku.6.21
• ISSN: 21885923
• ISSN: 03864073
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可