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  1. 131 地震研究所
  2. 東京大学地震研究所彙報
  3. 56
  4. 3
  1. 0 資料タイプ別
  2. 30 紀要・部局刊行物
  3. 東京大学地震研究所彙報
  4. 56
  5. 3

観測井を利用した山崎断層の比抵抗連続観測

https://doi.org/10.15083/0000033024
https://doi.org/10.15083/0000033024
839a676f-834c-402a-aa94-f85b74fb97a7
名前 / ファイル ライセンス アクション
ji0563010.pdf ji0563010.pdf (1.2 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2008-05-30
タイトル
タイトル 観測井を利用した山崎断層の比抵抗連続観測
言語 ja
言語
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
ID登録
ID登録 10.15083/0000033024
ID登録タイプ JaLC
その他のタイトル
その他のタイトル Continuous Observation of Earth Resistivity by Means of the Electrical Well Logging Method in a Bore Hole near the Yamasaki Fault
著者 吉野, 登志男

× 吉野, 登志男

WEKO 128755

吉野, 登志男

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行武, 毅

× 行武, 毅

WEKO 128756

行武, 毅

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著者別名
識別子Scheme WEKO
識別子 128757
姓名 Yoshino, Toshio
著者別名
識別子Scheme WEKO
識別子 128758
姓名 Yukitake, Takesi
著者所属
著者所属 東京大学地震研究所
抄録
内容記述タイプ Abstract
内容記述 The electrical well logging method has been applied for continuously measuring the earth resistivity. Both the current and the potential electrodes have been installed in an observation bore hole drilled very close to the Yamasaki fault in Hyogo prefecture. Electric currents of a rectangular wave form of an amplitude of 10 mA with a period of 10 second are being applied between the current electrodes and the apparent resistivity is computed from the potential difference measured between the adjacent potential electrodes. It was found that the apparent resistivity had increased about 10% between March and September, 1980. After that it gradually decreased. Superposed on this gradual change are small fluctuations closely related to changes in the water level in the bore hore. An examination of these short period fluctuations indicates that the apparent resistivity increases about 0.7 % for a one meter rise in water level with a time lag of 8 hours. On the other hand, the gradual increase of 10% in the resistivity observed between March and September is supposed to be a part of the seasonal variations. It was found that this change could be well correlated to the seasonal change in strain observed by an extensometer installed in the direction of N56°E in a tunnel across the Yamasaki fault about 10 m from the bore hole. Although the bore hole used for this experiment is only 20 m deep, the present technique will be applicable in deeper wells to measure the resistivity of the deeper crust.
書誌情報 東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo

巻 56, 号 3, p. 603-621, 発行日 1982-01-08
ISSN
収録物識別子タイプ ISSN
収録物識別子 00408972
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AN00162258
フォーマット
内容記述タイプ Other
内容記述 application/pdf
日本十進分類法
主題Scheme NDC
主題 453
出版者
出版者 東京大学地震研究所
出版者別名
Earthquake Research Institute, University of Tokyo
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