World Library  

Add to Book Shelf
Flag as Inappropriate
Email this Book

Fracturing of Ductile Anisotropic Multilayers: Influence of Material Strength : Volume 6, Issue 2 (19/05/2015)

By Gomez-rivas, E.

Click here to view

Book Id: WPLBN0004021329
Format Type: PDF Article :
File Size: Pages 18
Reproduction Date: 2015

Title: Fracturing of Ductile Anisotropic Multilayers: Influence of Material Strength : Volume 6, Issue 2 (19/05/2015)  
Author: Gomez-rivas, E.
Volume: Vol. 6, Issue 2
Language: English
Subject: Science, Solid, Earth
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


APA MLA Chicago

Griera, A., Llorens, M., & Gomez-Rivas, E. (2015). Fracturing of Ductile Anisotropic Multilayers: Influence of Material Strength : Volume 6, Issue 2 (19/05/2015). Retrieved from

Description: Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen, Scotland, UK. Fractures in rocks deformed under dominant ductile conditions typically form simultaneously with viscous flow. Material strength plays a fundamental role during fracture development in such systems, since fracture propagation can be strongly reduced if the material accommodates most of the deformation by viscous flow. Additionally, the degree and nature of anisotropy can influence the orientation and type of resulting fractures. In this study, four plasticine multilayer models have been deformed under coaxial boundary conditions to investigate the influence of strength and anisotropy on the formation of fracture networks. The experiments were made of different mixtures and had two types of anisotropy: composite and composite-intrinsic. The transition from non-localised deformation to systems where fracture networks control deformation accommodation is determined by the ability of the material to dissipate the external work and relax the elastic strain during loading either by viscous flow or by coeval flow and failure. Tension cracks grow in experiments with composite anisotropy, giving rise to a network of shear fractures when they collapse and coalesce with progressive deformation. The presence of an additional intrinsic anisotropy enhances the direct nucleation of shear fractures, the propagation and final length of which depend on the rigidity of the medium. Material strength increases the fracture maximum displacement (dmax) to fracture length (L) ratio, and the resulting values are significantly higher than those from fractures in elastic–brittle rocks. This can be related to the low propagation rates of fractures in rocks undergoing ductile deformation.

Fracturing of ductile anisotropic multilayers: influence of material strength

Arslan, A., Passchier, C. W., and Koehn, D.: Foliation boudinage, J. Struct. Geol., 30, 291–309, 2008.; Behrmann, J. H.: A precautionary note on shear bands as kinematic indicators, J. Struct. Geol., 9, 659–666, 1987.; Anderson, T. L.: Fracture mechanics: fundamentals and applications, 3rd Edition, CRC Press Taylor & Francis, 640 pp., 2005.; Bons, P. D., Druguet, E., Hamann, I., Carreras, J., and Passchier, C. W.: Apparent boudinage in dykes, J. Struct. Geol., 26, 625–636, 2004.; Bons, P. D., Druguet, E., Castaño, L. M., and Elburg, M. A.: Finding what is not there anymore: recognizing missing fluid and magma volumes, Geology, 36, 851–854, 2008.; Bons, P. D., Becker, J. K., Elburg, M. A., and Urtson, K.: Granite formation: Stepwise accumulation of melt or connected networks?, Earth. Env. Sci. T. R. So., 100, 105–115, 2010.; Carreras, J., Julivert, M., Soldevila, A., Griera, A., and Soler, D.: A deformation stage for analogue modelling of structures developed under variable degree of non-coaxiality, in: Geoscience 2000 Abstracts volume, University of Manchester, section Modelling in Structural Geology, 126, 2000.; Cobbold, P. R., Cosgrove, J. W., and Summers, J. M.: Development of internal structures in deformed anisotropic rocks, Tectonophysics, 12, 23–53, 1971.; Davidson, C., Schmid, S. M., and Hollister, L. S.: Role of melt during deformation in the deep crust, Terra Nova, 6, 133–142, 1994.; Druguet, E. and Carreras, J.: Analogue modelling of syntectonic leucosomes in migmatitic schists, J. Struct. Geol., 28, 1734–1747, 2006.; Druguet, E. and Castaño, L. M.: Analysis of syntectonic magmatic veins at the mesoscale, J. Geol. Soc. India, 75, 60–73, 2010.; Exner, U., Mancktelow, N. S., and Grasemann, B.: Progressive development of s-type flanking folds in simple shear, J. Struct. Geol., 26, 2191–2201, 2004.; Fagereng, Å.: On stress and strain in a continuous-discontinuous shear zone undergoing simple shear and volume loss, J. Struct. Geol., 50, 44–53, 2013.; Fusseis, F., Handy, M. R., and Schrank, C.: Networking of shear zones at the brittle-to-viscous transition (Cap de Creus, NE Spain), J. Struct. Geol., 28, 1228–1243, 2006.; Fusseis, F., Regenauer-Lieb, K., Liu, J., Hough, R. M., and De Carlo, F.: Creep cavitation can establish a dynamic granular fluid pump in ductile shear zones, Nature, 459, 974–977, 2009.; Gomez-Rivas, E.: Localización de deformación en medios dúctiles y anisótropos: estudio de campo, experimental y numérico, Ph.D. thesis, Universitat Autònoma de Barceloma, 247 pp, available at: (last access: 11 May 2015), 2008.; Gomez-Rivas, E. and Griera, A.: Influence of mechanical anisotropy on shear fracture development, Trab. Geol., 29, 305–311, 2009.; Gomez-Rivas, E. and Griera, A.: Strain rate influence on fracture development in experimental ductile multilayers, Tectonophysics, 502, 351–363, 2011.; Gomez-Rivas, E. and Griera, A.: Shear fractures in anisotropic ductile materials: an experimental approach, J. Struct. Geol., 34, 61–76, 2012.; Gomez-Rivas, E., Bons, P. D., Griera, A., Carreras, J., Druguet, E., and Evans, L.: Strain and vorticity analysis using small-scale faults and associated drag folds, J. Struct. Geol., 29, 1882–1899, 2007.; Grasemann, B., Exner, U., and Tschegg, C.: Displacement–length scaling of brittle faults in ductile shear, J. Struct. Geol., 33, 1650–1661, 2011.; Griera, A., Bons, P. D., Jessell, M. W., Lebensohn, R. A., Evans, L., and Gomez-Rivas, E.: Strain localization and porphyroclast rotation, Geology, 39, 275–278, 2011.; Griera, A., Llorens, M.-G., Gomez-Rivas, E., Bons, P. D., Jessell, M. W., Evans, L. A., and Lebensohn, R.: Numerical modelling of porphyroclast and porphyroblast rotation in anisotropic rocks, Tectonophysics, 587, 4–29, 2013.; Guermani, A. and Pennacchioni, G.: Brittle precursors of plastic deformation in a granite: an example from the Mont Blan


Click To View

Additional Books

  • Features of the Earth Surface Deformatio... (by )
  • Particle Size Distributions by Laser Dif... (by )
  • 3-d Geomechanical–numerical Model of the... (by )
  • Plate Kinematics in the Cantabrian Domai... (by )
  • Seismogenic Frictional Melting in the Ma... (by )
  • A Simple Method for Solving the Bussian ... (by )
  • Wave-equation-based Travel-time Seismic ... (by )
  • Crop Residue Decomposition in Minnesota ... (by )
  • Petrophysical Constraints on the Seismic... (by )
  • Rainfall and Human Activity Impacts on S... (by )
  • Comparing a Thermo-mechanical Weichselia... (by )
  • First Experimental Evidence for the Co2-... (by )
Scroll Left
Scroll Right


Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.