In rheology, Byerlee's law, also known as Byerlee's friction law[1] concerns the shear stress (τ) required to slide one rock over another. The rocks have macroscopically flat surfaces, but the surfaces have small asperities that make them "rough." For a given experiment and at normal stresses (σn) below about 2000 bars (200 MPa) the shear stress increases approximately linearly with the normal stress (τ = 0.85 σn) and is highly dependent on rock type and the character (roughness) of the surfaces, see Mohr-Coulomb friction law. Byerlee's law states that with increased normal stress the required shear stress continues to increase, but the rate of increase decreases (τ = 0.5 + 0.6σn), and becomes nearly independent of rock type.[2]
The law describes an important property of crustal rock, and can be used to determine when slip along a geological fault takes place.
^ E. B. Burov (2010). "Plate Rheology and Mechanics". In Watts, Anthony B. (ed.). Crust and Lithosphere Dynamics: Treatise on Geophysics. Elsevier. p. 100. ISBN9780444535726.
^ Byerlee, James D. (July 1978). "Friction of Rocks". Pure and Applied Geophysics. 116 (4–5): 615–626. Bibcode:1978PApGe.116..615B. doi:10.1007/BF00876528. ISSN 0033-4553. S2CID 128666327.
General references
Fossen, Haakon (2010). Structural Geology. Cambridge University Press. ISBN9781139488617.
Karner, Garry D. (2004). Rheology and Deformation of the Lithosphere at Continental Margins. MARGINS theoretical and experimental earth science series. Columbia University Press. ISBN9780231127387.
Stüwe, Kurt (2013). Geodynamics of the Lithosphere. Springer Science & Business Media. ISBN9783662049808.
Wangen, Magnus (2010). Physical Principles of Sedimentary Basin Analysis. Cambridge University Press. ISBN9780521761253.
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byerlee, rheology, also, known, byerlee, friction, concerns, shear, stress, required, slide, rock, over, another, rocks, have, macroscopically, flat, surfaces, surfaces, have, small, asperities, that, make, them, rough, given, experiment, normal, stresses, bel. In rheology Byerlee s law also known as Byerlee s friction law 1 concerns the shear stress t required to slide one rock over another The rocks have macroscopically flat surfaces but the surfaces have small asperities that make them rough For a given experiment and at normal stresses sn below about 2000 bars 200 MPa the shear stress increases approximately linearly with the normal stress t 0 85 sn and is highly dependent on rock type and the character roughness of the surfaces see Mohr Coulomb friction law Byerlee s law states that with increased normal stress the required shear stress continues to increase but the rate of increase decreases t 0 5 0 6sn and becomes nearly independent of rock type 2 The law describes an important property of crustal rock and can be used to determine when slip along a geological fault takes place See also EditArchie s law Birch s lawReferences EditInline citations Edit E B Burov 2010 Plate Rheology and Mechanics In Watts Anthony B ed Crust and Lithosphere Dynamics Treatise on Geophysics Elsevier p 100 ISBN 9780444535726 Byerlee James D July 1978 Friction of Rocks Pure and Applied Geophysics 116 4 5 615 626 Bibcode 1978PApGe 116 615B doi 10 1007 BF00876528 ISSN 0033 4553 S2CID 128666327 General references Edit Fossen Haakon 2010 Structural Geology Cambridge University Press ISBN 9781139488617 Karner Garry D 2004 Rheology and Deformation of the Lithosphere at Continental Margins MARGINS theoretical and experimental earth science series Columbia University Press ISBN 9780231127387 Stuwe Kurt 2013 Geodynamics of the Lithosphere Springer Science amp Business Media ISBN 9783662049808 Wangen Magnus 2010 Physical Principles of Sedimentary Basin Analysis Cambridge University Press ISBN 9780521761253 This geophysics related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Byerlee 27s law amp oldid 1129838054, wikipedia, wiki, book, books, library,
