Examination of the basic assumption of stress tensor inversion methods

• Project/Area Number: 21740364
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Geology
• Research Institution: Kyoto University
• Principal Investigator: SATO Katsushi 京都大学, 大学院・理学研究科, 助教 (70509942)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2009: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 応力 / 断層 / 逆解析 / 個別要素法

Research Abstract

Stress tensor inversion methods are widely used to estimate the earth's crustal stress state from fault-slip orientations. The methods are based on an assumption that the slip directions of faults are consistent with the regional stress state. This study examined the assumption through numerical experiments. As a result, a significant dispersion of slip directions was found, which is also supported by natural fault-slip data. The inversion methods should be designed so as to take the dispersion into account.

Research Products

• [Journal Article] Physical Meaning of Stress Difference for Fault-Slip Analysis (2012)
  • Author(s): Sato, K.
  • Journal Title: Mathematical Geosciences Volume: (印刷中) Issue: 5 Pages: 635-644
  • DOI: 10.1007/s11004-012-9395-4
  • NAID: 120005243303
  • Peer Reviewed
• [Journal Article] Fast multiple inversion for stress analysis from fault-slip data (2012)
  • Author(s): Sato, K.
  • Journal Title: Computers & Geosciences Volume: 40 Pages: 132-137
  • DOI: 10.1016/j.cageo.2011.08.003
  • NAID: 120003874263
  • Peer Reviewed
• [Journal Article] A spherical code and stress tensor inversion (2012)
  • Author(s): Yamaji,A., Sato, K.
  • Journal Title: Computers & Geosciences Volume: 38 Issue: 1 Pages: 164-167
  • DOI: 10.1016/j.cageo.2011.04.016
  • Peer Reviewed
• [Journal Article] Incremental fold test for paleostress analysis using the Hough transform inverse method (2011)
  • Author(s): Tonai, S., Sato, K. and Ashi, J.
  • Journal Title: Journal of Structural Geology Volume: 33 Issue: 7 Pages: 1158-1168
  • DOI: 10.1016/j.jsg.2011.05.005
  • Peer Reviewed
• [Journal Article] Clustering of fracture orientations using a mixed Bingham distribution and its application to paleostress analysis from dike or vien (2011)
  • Author(s): Yamaji, A., Sato, K.
  • Journal Title: Journal of Structural Geology Volume: 33 Issue: 7 Pages: 1148-1157
  • DOI: 10.1016/j.jsg.2011.05.006
  • Peer Reviewed
• [Journal Article] Stochastic modeling for the stress inversion of vein orientations : Paleostress analysis of Pliocene epithermal veins in southwestern Kyushu, Japan (2010)
  • Author(s): Yamaji, A., Sato, K., Tonai, S.
  • Journal Title: Journal of Structural Geology Volume: 32 Pages: 1137-1146
  • NAID: 120003001405
  • Peer Reviewed
• [Presentation] 応力解析のための高速多重逆解法とノイズ低減 (2011)
  • Author(s): 佐藤活志
  • Organizer: 日本地質学会118年学術大会
  • Place of Presentation: 茨城大学
  • Year and Date: 2011-09-10
• [Presentation] 応力逆解析における応力距離の重要性とその物理的意味 (2011)
  • Author(s): 佐藤活志
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ(千葉県)
  • Year and Date: 2011-05-25
• [Presentation] 断層変位センスによる応力インバージョン法と活断層データへの適用 (2011)
  • Author(s): 佐藤活志, 堤浩之, 山路敦
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ(千葉県)
  • Year and Date: 2011-05-25
• [Presentation] クラック方向分布への柔軟な確率モデルの当てはめと古応力推定 (2010)
  • Author(s): 佐藤活志
  • Organizer: 日本地質学会117年学術大会
  • Place of Presentation: 富山大学(富山県)
  • Year and Date: 2010-09-20
• [Presentation] A wide-use method of fault-slip analysis : its principle and applications (2010)
  • Author(s): Sato, K.
  • Organizer: Stress controls on faulting, fracturing and igneous intrusion in the Earth's crust : A meeting to commemorate the work of Ernest Masson Anderson
  • Place of Presentation: グラスゴー大学(英国)
  • Year and Date: 2010-09-06
• [Presentation] A wide-use method offault-slip analysis : its principle andapplications, Stress controls onfaulting, fracturing and igneousintrusion in the Earth's crust: (2010)
  • Author(s): Sato, K
  • Organizer: Ameeting to commemorate the work ofErnest Masson Anderson
  • Place of Presentation: グラスゴー大学(英国)
  • Year and Date: 2010-09-05
• [Presentation] 応力逆解析手法の比較研究:多重逆解法とHough変換による逆解法 (2010)
  • Author(s): 佐藤活志
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張(千葉県)
  • Year and Date: 2010-05-25
• [Presentation] 応力逆解析手法の比較研究:多重逆解法とHough変換による逆解法 (2010)
  • Author(s): 佐藤活志
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ(千葉県)
  • Year and Date: 2010-05-25
• [Presentation] グリッド検索によらない最適応力決定と多重逆解法の高速化 (2009)
  • Author(s): 佐藤活志
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 千葉県幕張メッセ国際会議場
  • Year and Date: 2009-05-17
• [Remarks]
  • URL: http://www.kueps.kyoto-u.ac.jp/~web-bs/k_sato/
• [Remarks]
  • URL: http://www.kueps.kyoto-u.ac.jp/~web-bs/k_sato/
• [Remarks]
  • URL: http://www.kueps.kyoto-u.ac.jp/~web-bs/k_sato/
• [Remarks]
  • URL: http://www.kueps.kyoto-u.ac.jp/~web-bs/k_sato/