MR028
Rock Damage in Fault Zones
Session ID#: 75311
Session Description:
Rock damage in fault zones is observed in many continental regions and is inferred in subduction zones. The damage modifies earthquake rupture properties and the evolution of seismic sequences. Geophysical data indicate km-wide damage zones along plate boundaries in the upper crust, while observations of fossil earthquakes show narrow cm-thick damage zones in the lower crust. In laboratory experiments, the evolution of damage with increasing stress leads to localization, and both slow and fast slips generate damage. The similarities and differences between shallow damage (upper few km) and deep damage (>20 km deep) from microstructures, mineral composition, lithology and geophysical observations are subject to considerable recent studies. This session aims to discuss why and how fault damage zones form and evolve across the entire crust. We encourage multi-disciplinary contributions from geological, geophysical, experimental, and modelling studies of fault damage, including novel techniques to extract information from large data sets.
Co-Organized:
Index Terms:
1209 Tectonic deformation [GEODESY AND GRAVITY]
5104 Fracture and flow [PHYSICAL PROPERTIES OF ROCKS]
7209 Earthquake dynamics [SEISMOLOGY]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
Primary Convener: Francois Renard, University of Oslo, Oslo, Norway
Conveners: Sarah Hatice Maria Incel, University of Oslo, Oslo, Norway, Giulio Di Toro, University of Padova, Department of Geoscience, Padova, Italy and Yehuda Ben-Zion, University of Southern California, Los Angeles, CA, United States
Primary Liaison: Francois Renard, University Joseph Fourier Grenoble, Grenboble, France
Experimental Deformation of Unconsolidated Quartz Sands, Examining the Effects of Grain Sorting on Deformation Band Formation Within Mixed Aeolian-fluvial Reservoirs (491072)
Karl Clark, Keele University, Staffordshire, United Kingdom, John D Bedford, University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, Dan Faulkner, University of Liverpool, Liverpool, L69, United Kingdom and Ian Geoffrey Stimpson, Keele University, Staffordshire, ST5, United Kingdom
What’s the damage? Multiscale analyses of attributes in fault damage zones – fracture length distributions, orientation scale transitions and network connectivity (492849)
Roberto Emanuele Rizzo1, David Healy2, Natalie Jane Charlotte Farrell3, Giles Ostermeijer4, Telemaco Tesei5, John D Bedford6, Michael John Heap7 and Thomas M Mitchell4, (1)University of Aberdeen, Aberdeen, UNITED KINGDOM, (2)University of Aberdeen, School of Geosciences, Aberdeen, United Kingdom, (3)University of Aberdeen, Aberdeen, United Kingdom, (4)University College London, Department of Earth Sciences, London, United Kingdom, (5)University of Durham, Department of Earth Sciences, Durham, United Kingdom, (6)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, (7)Université de Strasbourg/EOST, Strasbourg, France, Strasbourg, France
Clay lies still? The Role of Authigenic Clays in Fault Zones and the implications for Fluid Flow (492930)
Natalie Jane Charlotte Farrell1, Natalie Debenham2, David Healy3, Rosalind King4, Simon P Holford4, Lyudmyla Wilson1 and Jeff Wilson1, (1)University of Aberdeen, Aberdeen, United Kingdom, (2)Exxon Mobil, Melbourne, Australia, (3)University of Aberdeen, School of Geosciences, Aberdeen, United Kingdom, (4)University of Adelaide, Adelaide, Australia
The clay fabric of shales is a Strain gauge within a thrust damage (524294)
Charles T Aubourg1, Tiphaine Boiron2, Pierre-Alexandre Grignard1 and Hugo Saur3, (1)University of Pau and Pays de l'Adour, Pau, France, (2)Laboratory of Complex Fluids and Their Reservoirs, Department of Geosciences, PAU, DC, United States, (3)Institut de Physique du Globe de Paris, Paris, France
Long fault, narrow damage: the Bilila-Mtakataka fault, Malawi (534370)
Jack Nicholas Williams1, Ake Fagereng2, Luke Wedmore3, Juliet Biggs4, Hassan S. Mdala5 and Felix Mphepo5, (1)Cardiff University, School of Earth and Ocean Sciences, Cardiff, CF24, United Kingdom, (2)Cardiff University, Earth and Ocean Sciences, Cardiff, CF24, United Kingdom, (3)University of Bristol, School of Earth Sciences, Bristol, United Kingdom, (4)University of Bristol, COMET, School of Earth Sciences, Bristol, United Kingdom, (5)Geological Survey of Malawi, Zomba, Malawi
Large Scale Detection of Fault Damage (562888)
Kelian Dascher-Cousineau, University of California Santa Cruz, Santa Cruz, CA, United States, Emily E Brodsky, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, Prof Noah J Finnegan, University of California - Santa Cruz, Santa Cruz, CA, United States and Alison R Duvall, University of Washington, Seattle, WA, United States
Mechanical Stratigraphy Controls Width of Damage Zone in Normal Faults: an Example from Carbonates of the Island of Gozo (Malta) (582304)
Mattia Martinelli1, Andrea Bistacchi1, Balsamo Fabrizio2 and Riccardo Castellanza1, (1)Università degli Studi di Milano Bicocca, Dipartimento di Scienze dell’Ambiente e della Terra, Milano, Italy, (2)NEXT- Natural and Experimental Tectonics research group, Dipartimento Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parma, Italy
Geomechanical parameters of the fault gouge of Alhama de Murcia Fault (SE Spain) (584943)
Juan Miguel Insua-Arévalo1, Meaza Tsige2, José Luis Sánchez-Roldán2, Emilio Rodriguez-Escudero Dr2 and Jose J. Martínez-Díaz3, (1)Complutense University of Madrid, Geodynamics, Stratigraphy & Paleontology, Madrid, Spain, (2)Complutense University of Madrid, Madrid, Spain, (3)Complutense University of Madrid, Department of Geodynamics, Stratigraphy & Paleontology, Madrid, Spain
Deformation Experiments of the Etchegoin Sandstone (588354)
Lena Nyblade1, Kate Nootenboom1, Peter Lindquist2, Sarah Titus1 and Melodie E French3, (1)Carleton College, Northfield, MN, United States, (2)University of Vermont, Burlington, VT, United States, (3)Rice University, Houston, TX, United States
New combined nonparametric/parametric statistical analysis of fracture networks to unravel the evolution of fault zones: a study of the exhumed seismogenic Gole Larghe Fault Zone (Italian Southern Alps) (590116)
Andrea Bistacchi, Università degli Studi di Milano Bicocca, Dipartimento di Scienze dell’Ambiente e della Terra, Milano, Italy, Silvia Mittempergher, Università degli Studi di Milano Bicocca, Dipartimento di Scienze dell'Ambiente e della Terra, Milano, Italy, Steven A.F. Smith, University of Otago, Geology Department, Dunedin, New Zealand, Giulio Di Toro, University of Padova, Padova, Italy and Stefan Bjorklund Nielsen, University of Durham, Department of Earth Sciences, Durham, United Kingdom
Fault Damage Zones in 3D with Active-Source Seismic Data (595285)
Travis Alongi1, Emily E Brodsky1, Jared Kluesner2 and Daniel S Brothers2, (1)University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, (2)U.S. Geological Survey, Santa Cruz, CA, United States
Maximum sustainable fluid pressure within a strike-slip tectonic setting: preliminary results from the Andean Transverse Faults, Southern Volcanic Zone of the Andes (39ºS) (601038)
Tomas Roquer1,2, Eugenio A. Veloso1,2, Gloria Arancibia1,2, Eduardo Molina Piernas1,2, Josefa Sepúlveda1,2, Julie V Rowland3, Jorge G. F. Crempien1,2, Diego Morata2,4 and José Elizalde1,2, (1)Pontificia Universidad Católica de Chile, Departamento de Ingeniería Estructural y Geotécnica, Santiago, Chile, (2)Andean Geothermal Center of Excellence (CEGA), Santiago, Chile, (3)University of Auckland, School of Environment, Auckland, New Zealand, (4)Universidad de Chile, Departamento de Geología, Santiago, Chile
On the Spatial and Temporal Variations of Fault Damage and Related Properties (607867)
Dan Faulkner, University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, L69, United Kingdom, Thomas M Mitchell, University College London, Department of Earth Sciences, London, United Kingdom and Roland Burgmann, Univ California Berkeley, Seismological Laboratory, Berkeley, CA, United States
Damage Zone Resonance: Observation and Analytical Fitting of Fault Zone Trapped Wave Normal Modes Using Dense Near-fault Seismic Array (608684)
Hongrui Qiu1, Amir A Allam2, Fan-Chi Lin3 and Yehuda Ben-Zion1, (1)University of Southern California, Los Angeles, CA, United States, (2)University of Alaska Fairbanks, Fairbanks, AK, United States, (3)University of Utah, Geology & Geophysics, Salt Lake City, UT, United States
Tectonic constraints leading to hydrothermal fluid flow: insights from the Liquiñe-Ofqui Fault System and the Andean Transverse Faults, Southern Volcanic Zone of the Andes (39ºS) (620148)
Eugenio E Veloso1,2, Tomas Roquer2,3, Gloria Arancibia2,3, Eduardo Molina Piernas2,3, Josefa Sepúlveda2,3, Julie V Rowland4, Jorge G. F. Crempien2,3, José Elizalde2,3 and Diego Morata3,5, (1)Andean Geothermal Centre of Excellence (CEGA), Santiago, Chile, (2)Pontificia Universidad Católica de Chile, Departamento de Ingeniería Estructural y Geotécnica, Santiago, Chile, (3)Andean Geothermal Center of Excellence (CEGA), Santiago, Chile, (4)University of Auckland, School of Environment, Auckland, New Zealand, (5)Universidad de Chile, Departamento de Geología, Santiago, Chile
An Experimental Study by Coded Excitation Signals for Measurement of Rock Ultrasonic Wave Velocity (630524)
HeZhen Wu1, Wei Zhu2, TaiMing He3, ZhengYi Liu3 and XiaoWen Lan4, (1)Institute of Geophysics, China Eathquake Administration, Beijing, China, (2)Institute of Geology and Geophysics, Chinese Academy of Sciences (IGGCAS), Beijing, China, (3)Institute of Geophysics, Chinese Earthquake Administration, Beijing, China, (4)Institute of Crustal Dynamics, China Earthquake Administration, Beijing, China
Potential evidences of fault shear stress relaxation due to viscous damage zone deformation observed in Chelungpu fault, Taiwan (633240)
Hiroki Sone, University of Wisconsin-Madison, Geological Engineering Program, Madison, WI, United States, Mayukh Talukdar, University of Wisconsin Madison, Geological Engineering Program, Madison, WI, United States and Li-Wei Kuo, National Central University, Department of Earth Sciences, Kanagawa, Japan
