Development of gravitational slope deformation as precursor of deep-seated landslide

• Project/Area Number: 26400487
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Geology
• Research Institution: Gifu University
• Principal Investigator: KOJIMA Satoru 岐阜大学, 工学部, 教授 (20170243)
• Co-Investigator(Renkei-kenkyūsha): KANEDA Heitaro 千葉大学, 理学研究科, 准教授 (30415658) ; NAKAMURA Toshio 名古屋大学, 年代測定総合研究センター, 教授 (10135387) ; OHTANI Tomoyuki 岐阜大学, 工学部, 教授 (20356645) ; KATSUTA Nagayoshi 岐阜大学, 教育学部, 准教授 (70377985)
• Research Collaborator: NAGATA Hidehisa (有)風水土, 代表取締役
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 地すべり / 山体重力変形地形 / 北アルプス / 越美山系 / 紀伊半島 / 二重山稜 / 冠山 / ツエノ峰 / 長塀尾根

Outline of Final Research Achievements

Double ridges and uphill-facing scarps are the results of deep-seated gravitational slope deformation (DGSD), and are considered to be precursors of deep-seated landslides. Geological and geomorphological surveys in Northern Alps, Mino Mountains and Kii Peninsula were performed in order to clarify the developments of these landforms. As the results of surveys some of the DGSDs are stable during the last 100 thousand years and most of the DGSDs were formed in the warm and wet climate conditions just after the last glacial maximum. These lines of evidence indicate not all the DGSDs are the precursors of deep-seated landslides. Moreover the sediments accumulated in the linear depressions between the double ridges, one of the representative DGSDs, have recorded several kinds of signals of environmental changes.

Research Products

• [Journal Article] Recognizing OIB and MORB in accretionary complexes: A new approach based on ocean plate stratigraphy, petrology and geochemistry (2016)
  • Author(s): Safonova, I., Maruyama, S., Kojima, S., Komiya, T., Krivonogov, S., Koshida, K.
  • Journal Title: Gondwana Research Volume: 33 Pages: 92-114
  • DOI: 10.1016/j.gr.2015.06.013
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Development history of landslide-related sagging geomorphology in orogenic belts: Examples in central Japan (2015)
  • Author(s): Kojima, S., Kaneda, H., Nagata, H., Niwa, R., Iwamoto, N., Kayamoto, K. and Ohtani, T.
  • Journal Title: G. Lollino, et al. (eds.) Engineering Geology for Society and Territory Volume: 2 Pages: 553-558
  • DOI: 10.1007/978-3-319-09057-3_91
  • ISBN: 9783319090566, 9783319090573
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Large deep-seated landslides controlled by geologic structures: prehistoric and modern examples in a Jurassic subduction-accretion complex on the Kii Peninsula, central Japan. (2015)
  • Author(s): Kojima, S., Nagata, H., Yamashiroya, S., Iwamoto, N. and Ohtani, T.
  • Journal Title: Engineering Geology Volume: 186 Pages: 44-56
  • DOI: 10.1016/j.enggeo.2014.10.018
  • Peer Reviewed
• [Journal Article] 三重県多気郡大台町薗川上流のせき止め湖堆積物の層相と年代 (2015)
  • Author(s): 小嶋 智・永田秀尚・植木岳雪・沼本晋也・池田晃子・中村俊夫・木戸豊大・大谷具幸
  • Journal Title: 名古屋大学加速器質量分析計業績報告書 Volume: XXVI Pages: 108-113
  • NAID: 120005605947
• [Journal Article] Oceanic island basalts in accretionary complexes of SW Japan: Tectonic and petrogenetic implications. (2015)
  • Author(s): Safonova, I., Kojima, S., Nakae, S. Romer, R.L., Seltmann, R., Sano, H. and Onoue, T.
  • Journal Title: Journal of Asian Earth Sciences Volume: 113 Pages: 508-523
  • DOI: 10.1016/j.jseaes.2014.09.015
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Large-scale landslides in Toyama Prefecture, central Japan, and their probable relationship with earthquakes (2014)
  • Author(s): Kojima, S., Nozaki, T., Nagata, H., Tanahashi, R., Kondo, R., Okamura, N., Suzuki, K., Ikeda, A., Nakamura, T. and Ohtani, T
  • Journal Title: Environ. Earth Sci Volume: vol.71 Issue: 6 Pages: 2753-2763
  • DOI: 10.1007/s12665-013-2654-y
  • Peer Reviewed / Open Access
• [Presentation] 北アルプス，徳本峠北東の山体重力変形地形 (2016)
  • Author(s): 小嶋 智・永田秀尚・小出健太・大谷具幸
  • Organizer: 日本地質学会第123年学術大会
  • Place of Presentation: 日本大学文理学部
  • Year and Date: 2016-09-10
• [Presentation] 三重県熊野市ツエノ峰周辺にみられる山上おう地およびせき止め湖の埋積堆積物下の基盤構造：ボーリング調査・電気探査・地震波探査の統合解析結果 (2016)
  • Author(s): 小嶋 智・村田芳信・岩本直也・小村慶太朗・山崎智寛・金田平太郎・大谷具幸
  • Organizer: 日本地球惑星科学連合2016年大会
  • Place of Presentation: 幕張メッセ国際会議場
  • Year and Date: 2016-05-21
• [Presentation] Past and modern landslides controlled by lithology and geologic structures of accretionary complexes in eastern Kii Peninsula, central Japan (2016)
  • Author(s): Kojima, S. and Nagata, H.
  • Organizer: JpGU 2016
  • Place of Presentation: 幕張メッセ国際会議場
  • Year and Date: 2016-05-21
  • Int'l Joint Research
• [Presentation] Geomorphological and geological characteristics of deep-seated gravitational slope deformation in the Kamikochi area, central Japan (2015)
  • Author(s): Kojima, S., Hasegawa, Y., Iwamoto, N., Komura, K. and Nagata, H.
  • Organizer: 10th Asian Regional Conference of IAEG
  • Place of Presentation: 京都大学宇治キャンパス
  • Year and Date: 2015-09-26
  • Int'l Joint Research
• [Presentation] 岐阜福井県境，冠山北西の山体重力変形地形の地下構造 (2015)
  • Author(s): 小嶋 智・岩本直也・山崎智寛・小村慶太朗・金田平太郎・大谷具幸
  • Organizer: 日本地質学会第122年学術大会
  • Place of Presentation: 信州大学長野キャンパス
  • Year and Date: 2015-09-11
• [Presentation] Geomorphology, geologic structure, and development history of deep seated gravitational slope deformation features in the Kanmuriyama area, central Japan (2015)
  • Author(s): Kojima, S., Iwamoto, N., Niwa, R., Kaneda, H., Komura, K., Hattori, K., Yamazaki, T. and Ohtani, T.
  • Organizer: XIX INQUA
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2015-07-27
  • Int'l Joint Research
• [Presentation] Development history of landslide-related sagging geomorphology in orogenic belts: Examples in central Japan (2014)
  • Author(s): Kojima, S., Kaneda, H., Nagata, H., Niwa, R., Iwamoto, N., Kayamoto, K. and Ohtani, T.
  • Organizer: IAEG XII Congress
  • Place of Presentation: Torino, Italy
  • Year and Date: 2014-09-15 – 2014-09-19
• [Presentation] 岐阜福井県境，冠山峠東方の山上凹地の地質構造 (2014)
  • Author(s): 岩本直也・小嶋 智・丹羽良太・服部克己・金田平太郎・山崎智寛・小村慶太朗・大谷具幸
  • Organizer: 日本地質学会第121年学術大会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2014-09-13 – 2014-09-15
• [Book] Geology of Japan, Chapter 2b: Pre-Cretaceous accretionary complexes (2016)
  • Author(s): Kojima, S., Hayasaka, Y., Hiroi, Y., Matsuoka, A., Sano, H., Sugamori, Y., Suzuki, N., Takemura, A., Tsujimori, T. and Uchino, T.
  • Publisher: Geological Society, London
• [Book] Geology of Japan (2016)
  • Author(s): Kojima, S., Hayasaka, Y., Hiroi, Y., Matsuoka, A., Sano, H., Sugamori, Y., Suzuki, N., Takemura, A., Tsujimori, T. and Uchino, T.
  • Total Pages: 536
  • Publisher: Geological Society, London