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タイトル: | 蒲田川流域の地形・地質学的特性に関する研究(2) ―蒲田川流域の地質学的特性について― |
その他のタイトル: | STUDIES ON THE GEOMORPHOLOGICAL AND GEOLOGICAL CHARACTERS OF THE GAMATA RIVER BASIN (2) -On the geological characters of the Gamata river basin- |
著者: | 矢野, 勝正 藤井, 昭二 沢田, 豊明 |
著者名の別形: | YANO, Katsumasa FUJII, Shoji SAWADA, Toyoaki |
発行日: | 1-Mar-1969 |
出版者: | 京都大学防災研究所 |
誌名: | 京都大学防災研究所年報. B |
巻: | 12 |
号: | B |
開始ページ: | 295 |
終了ページ: | 309 |
抄録: | On the Gainata river basin in Gifu Pref., central Japan, there are various kinds of rapidldnd slide and mud flow. In order to make clear the genetic mechanism of the landslide, it is necessary to observe the geologic structure of the basin such as arrangementof rocks and deposits.It was classified from the authors' observation that geology and geologic structure inthis basin, are made of both the older basement rocks consisted of Paleozoic involvingMesozoic igneous rocks and the young Quaternary deposits consisted of volcanic materialand delluvial and sedimentary deposits.In this area, the main geologic structure in the basement rocks is characterized bythe Circuin Hida tectonic zone, which was made of complex of metamorphic and plutonicrocks, and developed duaring the period from the formation of pre-Cainbrian schist tothe post Mesozoic igneous activity.It was also presumed, on the other hand, that the gigantic mass, the so-calledNohi-rhyolite mass was active in the late Mesozoic along oblique trend to the preexistingwas tectonic zone.The young deposit in the Quaternary is classified as the volcanic materials in theYakedake volcano, located in the Norikura-volcanic zone, and the terrace deposits inPeistocene epock. In this area, these terrace deposits are formed by erosion of preexistingstrata. |
URI: | http://hdl.handle.net/2433/69685 |
関連リンク: | http://www.dpri.kyoto-u.ac.jp/nenpo/nenpo.html |
出現コレクション: | No.12 B |
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