Book contents
- Geologic Fracture Mechanics
- Geologic Fracture Mechanics
- Copyright page
- Dedication
- Contents
- Preface
- Acknowledgements
- 1 Introduction to Geologic Structural Discontinuities
- 2 Elastic Rock Rheology and Stress Concentration
- 3 Stress, Mohr Circles, and Deformation at Peak Strength
- 4 Cracks and Anticracks
- 5 Discontinuity Patterns and Their Interpretation
- 6 Faults
- 7 Deformation Bands
- 8 Fracture Mechanics: A Tour of Basic Principles
- 9 Beyond Linear Elastic Fracture Mechanics
- Glossary
- References
- Index
- Answers to Selected Exercises
7 - Deformation Bands
Published online by Cambridge University Press: 03 August 2019
- Geologic Fracture Mechanics
- Geologic Fracture Mechanics
- Copyright page
- Dedication
- Contents
- Preface
- Acknowledgements
- 1 Introduction to Geologic Structural Discontinuities
- 2 Elastic Rock Rheology and Stress Concentration
- 3 Stress, Mohr Circles, and Deformation at Peak Strength
- 4 Cracks and Anticracks
- 5 Discontinuity Patterns and Their Interpretation
- 6 Faults
- 7 Deformation Bands
- 8 Fracture Mechanics: A Tour of Basic Principles
- 9 Beyond Linear Elastic Fracture Mechanics
- Glossary
- References
- Index
- Answers to Selected Exercises
Summary
Deformation bands are a common and important type of tabular geologic structural discontinuity that results from strain localization in porous granular rocks (e.g., Aydin et al., 2006; Fossen et al., 2007). First recognized in sandstone (e.g., Aydin, 1978; Aydin and Johnson, 1978; Hill, 1989), they were subsequently identified in other porous rock types including carbonate grainstones (Tondi et al., 2006), nonwelded tuffs (Wilson et al., 2003; Evans and Bradbury, 2004), chalk (Wennberg et al., 2013), and even sedimentary sequences on Mars (Okubo et al., 2009). Similar structures, sometimes called Lüders’ bands (e.g., Friedman and Logan, 1973; Olsson, 2000), have been noted and investigated in engineering materials such as polystyrene plastic (Argon et al., 1968; Bowden and Raha, 1970; Kramer, 1974) and mild steel (Nadai, 1950, p. 279) long before deformation bands were recognized as such in rocks (Aydin, 1978).
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- Geologic Fracture Mechanics , pp. 265 - 331Publisher: Cambridge University PressPrint publication year: 2019