Novel application of fluid inclusions decrepitation for stress estimation

2008 Fiscal Year Final Research Report

• Project/Area Number: 18686072
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Earth system and resources enginnering
• Research Institution: Tohoku University
• Principal Investigator: SEKINE Kotaro Tohoku University, 流体科学研究所, 助教 (70361194)
• Project Period (FY): 2006 – 2008
• Keywords: 応用地質

Research Abstract

流体包有物の破壊現象であるデクレピテーションについて,その応力依存性を実験的に評価した. その結果,デクレピテーションにより生じたき裂の進展挙動から, デクレピテーションが生じた時に鉱物に作用している応力場を類推できる知見を得た. また, 外力を作用させた石英薄片を偏光顕微鏡で観察すると, 光弾性効果によりレタデーションの変化が生じる. このレタデーション変化により鉱物内の応力分布を評価できる可能性が明らかとなった.

Research Products

• [Journal Article] Residual stress measurements on a quartz vein : A constraint on paleostress magnitude (2009)
  • Author(s): Kotaro Sekine and Kazuo Hayashi
  • Journal Title: Journal of Geophysical Research Vol.114, No.B01404
  • Peer Reviewed
• [Presentation] Determination of residual stress in a quartz vein using x-ray diffraction technique (2009)
  • Author(s): Kotaro Sekine and Kazuo Hayashi
  • Organizer: 6th International Workshop on WATERDYNAMICS
  • Place of Presentation: Sendai International Center, Japan
  • Year and Date: 2009-03-05
• [Presentation] Residual stress analysis on a rock using X-ray diffraction method (2008)
  • Author(s): Kotaro Sekine and Kazuo Hayashi
  • Organizer: The 8th International Symposium on Advanced Fluid Information and 5th International Symposium on Transdisciplinary Fluid Integration
  • Place of Presentation: Tohoku University, Japan
  • Year and Date: 2008-12-20
• [Presentation] 石英中の流体包有物のデクレピテーション (2008)
  • Author(s): 関根孝太郎, 林一夫
  • Organizer: 日本地熱学会平成20年学術講演会
  • Place of Presentation: 金沢大学
  • Year and Date: 2008-11-01
• [Presentation] Reconstruction of paleostress state associated with fossil fluid flow based on residual stress data (2008)
  • Author(s): Kotaro Sekine and Kazuo Hayashi
  • Organizer: 日本地球惑星科学連合2008年大会
  • Place of Presentation: Makuhari Messe International Conference Hall, Japan
  • Year and Date: 2008-05-25
• [Presentation] A bi-axial loading testers equipped heating microscope stage: investigation on stress controlled decrepitation crack (2007)
  • Author(s): Kotaro Sekine and Kazuo Hayashi
  • Organizer: Abstract of European Current Research on Fluid Inclusions (ECROFI-XIX)
  • Place of Presentation: University of Bern, Switzerland
  • Year and Date: 2007-07-17
• [Presentation] 流体包有物のデクレピテーションを利用した応力測定法の開発計画 (2006)
  • Author(s): 関根孝太郎, 林一夫
  • Organizer: 日本地熱学会平成18年学術講演会講演要旨集
  • Place of Presentation: 羽鳥湖高原交流促進センター
  • Year and Date: 2006-11-21