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Title: 尾瀬ヶ原湿原の「動ぎの田代(ゆるぎのたしろ)」の地形的特徴について
Other Titles: The geographical features of a quaking bog "Yuruginotashiro" in the Ozegahara mire.
Authors: 永坂, 正夫1 Browse this author
福原, 晴夫2 Browse this author
高野, 典礼3 Browse this author
野原, 精一4 Browse this author
Authors(alt): Nagasaka, Masao1
Fukuhara, Haruo2
Takano, Morihiro3
Nohara, Seiichi4
Keywords: 泥炭
underground structure
bog pool
soil pipe
Issue Date: 31-Mar-2022
Publisher: 低温科学第80巻編集委員会
Journal Title: 低温科学
Journal Title(alt): Low Temperature Science
Volume: 80
Start Page: 61
End Page: 78
Abstract: 尾瀬ヶ原湿原には,歩くと足元が揺れて地下に水体の存在が知覚される「動ぎの田代(ゆるぎのたしろ)」と呼ばれる地形がある.2019-2020年に上田代の2地点,中田代の1地点で,地下水,周辺池溏および地表水の採取と水質分析,地下の構造を把握する各種調査を実施した.3地点の動ぎの田代は,共通して地表面の泥炭層の下部に水体の層があり,面的な広がりを持つことが推定された.また,動ぎの田代は,中田代の「竜宮」に似た構造の地下水の湧き出す小池溏や,地表流の吸込み口となっている小池溏を伴っていた.動ぎの田代の成因解明には,「竜宮」に似た構造相互が泥炭層内でどのようにつながっているのか明らかにしてゆくことが必要である.
A quaking bog "Yuruginotashiro" is a micro topography in the Ozegahara mire, which quakes and shakes when someone walks on it. Physicochemical properties of ground water, pond water and surface water from three quaking bogs were analyzed in 2019-2020 and the soil explorations were carried out to document the geographical features of "Yuruginotashiro". The survey revealed that large water bodies existed under the ground of "Yuruginotashiro". "Yuruginotashiro" had a spring-fed pond and an inlet pond to the underground that was similar to the soil pipe structure of "Ryugu" in Nakatashiro area of the Ozegahara mire. To clarify the cause of "Yuruginotashiro", it is necessary to investigate how the underground structures are connected in the peat layer.
Type: bulletin (article)
Appears in Collections:低温科学 = Low Temperature Science > 第80巻

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