Measuring the aspect ratio of pseudotachylyte injection veins, Santa Rosa Mylonite Zone

The Earthquake Processes research group at McGill incorporates seismology, numerical and theoretical modeling, structural geology, field mapping, and minerology in the study of fault geometry and slip behaviours. We address questions about rheology, spatial and temporal controls on fault creep, tremor and earthquakes, mineral- earthquake interactions and the role of fluids.

See faculty websites for more information about other research interests, including volcano seismology (Harrington), marine geology and inversion tectonics (Kirkpatrick), soft sediment deformation and ore deposits (although usually not at the same time; Rowe), subducting seamounts and glacier sliding (Liu).

Potential students and postdocs: If you are interested in joining our group, contact any of the faculty members by email. Also see Christie's information for prospective applicants.

Rebecca Harrington
Earthquake seismology
Now at: Ruhr Universitat Bochum
James Kirkpatrick
Fault mechanics
EPSC350: Tectonics (Winter)
EPSC203: Structural Geology (Winter)
Yajing Liu
Theoretical and numerical modeling and seismology
EPSC 320: Elementary Earth Physics (Fall)
EPSC 331/341: Field School 2/3 (Spring)
Christie Rowe
Field & structural geology
EPSC 331: Field School I (Summer)
EPSC 240: Geology in the Field (Fall)

News and Updates

Fall 2018: Ge Li has shown that the Leech River Fault on Vancouver Island correlates with a wide (10 km) zone of seismic activity above the subducting plate interface Li, Liu, Regalla and Morell 2018 GRL

Welcoming new students Sam Metteer and Tim Howell to the Rowe group! Sam will work on fault strengthening after earthquakes and Tim will study the effects of structural deformation on a metamorphosed ore deposit.

Recent graduate Kelian Daschier-Cousineau has been awarded the 2018 Jack Henderson Award for Best MS Thesis from a Canadian University by the Canadian Tectonics Group. Congratulations Kelian and his advisor Jamie!

Winter 2017: Rebecca has taken a new position at Bochum University in Germany - we are very happy she will stay an active (and frequently visiting) member of McGill's Earthquake Processes Group. We are pleased to welcome Dr. Lei Zhang who will be visiting from the Institute of Geology at the China Earthquake Administration. Dr. Zhang is a specialist in experimental fault friction so we are looking forward to exciting discussions. The group published several new papers in late 2016, including Yu et al. (BSSA), Deng et al. (GRL) and Li et al. (JGR).

Events and Activities

Winter, 2017: Two 500-level courses offered this term: Physics and Geology of Earthquakes, and Anatomy of Fault Zones (co-taught with specialists from Queens U., UofT and UBC)

Summer, 2016: Field Trip to Charlevoix! details tbd.

Winter, 2016: Geology of Subduction Zones

Autumn, 2015: Appalachian Geology Tuesdays and Hot Orogens Fridays. Stay tuned for details.

Winter, 2015: New reading group Tectonics of California and New Zealand. Join us Fridays at 10am in the coffee lounge. Click here for Reading List

Sept 10-13, 2014: Field trip to the Norumbega Shear Zone, southern Maine, with collaborators from Southern Maine University. Migmatites, mylonites, breccias and pseudotachylytes!

Fall 2014: EPSC551 Seminar in Crustal Rheology. See Course Page for most recent draft of reading list.

2013-2014 Reading Group: Water in Subduction Zones with FlexPet Group. Topics included geochemical and mechanical interactions between subducting fluids and the plate boundary faults in subduction zones, with emphasis on geochemical tracers, water budgets, and the feedbacks between water and slip behaviour at different depths. Reading list is archived here.




Current
Post-doctoral researchers Ph.D. Students M.S. Students Undergraduates
Dr. Carly Faber - Structural evolution and strength changes during eclogite retrogression

Dr. Julia Kubanek - Geodetic observations of fluid injection and earthquakes in western Canada

Dr. Hongyu Yu - Subduction zone earthquake modeling at Manila and Chile

Lise Alalouf - Subduction zone friction

John Onweumeka - Charlevoix and lower St Lawrence seismicity

Samantha Carruthers - Deformation in subducting slabs from HP melange blocks

Noah Phillips - Deformation in block and matrix faults and shear zones

Caroline Seyler - Frictional changes with prograde metamorphism in subduction zones

Andres Pena Castro - Very Low Frequency Earthquakes on the San Andreas Fault near Parkfield

Ge Li - Cascadia forearc seismicity

Bei Wang - Earthquake triggering near fluid injection sites in Canada

Brindley Smith

Tim Howell - Structural evolution of the Bathurst Deposit

Sam Metteer - Strength evolution of faults after frictional melting

Ruhollah Keshvardoost - Western Quebec seismicity

Nick Ogasa - Strength of faults in the brittle to ductile transition

Lea Hansen

Mario Nucciarone - Water weakening of quartz in high-temperature shear zone




Alumni
Post-doctoral researchers Ph.D. Students M.S. Students Undergraduates
Dr. Randy Williams, 2018 - Formation of clay gouge in the San Andreas Fault, now postdoc at U Wisconsin

Dr. Kai Deng, 2017 - Poroelastic model for induced earthquakes, now Associate Professor at Chengdu University of Technology, China

Dr. Guoyan Jiang, 2015 - Interseismic slip deficit models using GPS and InSAR

Dr. Christine Regalla, 2015 - Effect of seamount subduction on fault geometry and rupture propagation, now Assistant Professor at Boston University

Dr. Duo Li, 2018 - Cascadia subduction zone earthquakes and slow slip events, now postdoc at LMU Munich

Dr. Hongyu Yu, 2016 - Malina subduction zone seismicity, Charlevoix seismicity, now postdoc at Rurh University Bochum

Dr. Ben Melosh, 2015 - Earthquake cycling in the brittle-plastic transition of a transform boundary, now Research Geologist at USGS

Dr. Nils Backeberg, 2015 - Damaged goods: Regional deformation history and structural controls on the Hammond Reef gold deposit, now Senior Analyst at Roskill

Catherine Ross, 2017 - Strain distribution around pseudotachylyte faults, now PhD student at UT Austin

Erik Young, 2017 - Distribution of earthquake slip surfaces in a mid-crustal shear zone, now PhD student at Simon Fraser U

Kelian Daschier-Cousineau, 2017 - Roughness evolution with slip, now PhD student at UCSC

Nick Harrichhausen, 2016 - Role of colloidal transport in the formation of high-grade gold veins at Brucejack, British Columbia, now PhD student at UCSB

Naomi Barshi, 2015 - Linking deformation and diffusion to develop a strain speedometer, now PhD student at U Wisconsin

Tim Sherry, 2014 - Earthquakes at stressed ramps emplace injectites, now COO Oddlot Labs

Meng Pang, 2014 - Double-difference earthquake relocation of Charlevoix seismicity, eastern Canada, and implication for regional geological structures

Daphne Saint Denis, 2018 - Mineralogy and microstructure of blueschist and eclogite

Ellie Seery, 2017 - Mineralogy of fault gouges in oceanic basalt

Fiona Clerc, 2017 - Source properties of induced earthquakes in western Alberta and NE British Columbia, now PhD student at MIT/WHOI

Alexander Martell, 2016 - Charlevoix earthquake focal mechanism solutions

Meng Li, 2016 (Mitacs Globalink summer intern from Peking University) - Icequakes in Antarctica, now PhD student at ETHZ

Paul Rakoczy, 2016 - Structure-from-motion using Scanning Electron Microscope imagery

Kassandra Sofonio, 2016 - Comparative study of impact and fault pseudotachylytes

Alex Carey, 2015 - Charlevoix seismicity focal mechanism solutions, now PhD student at U. Toronto

Carla Gonzalez, 2016 - Vein reflections: microstructural study of the Dixie Valley fault mirror surfaces

Catherine Ross, 2016 - A comparison between modelling and field observations of off-fault strain around pseudotachylyte fault veins, Norumbega fault system

Mack Muntwyler, 2016 - Marin Headlands fault gouge analysis, now Pilot

Jyotsana Singh, 2016 - Utter choss: characterization of grain-scale deformation associated with seamount subduction in the Permanente Terrane of Pacifica, California

Kelian Daschier-Cousineau, 2015 - Fault rocks of the Champlain Thrust

Emily Griffiths, 2015 - Earthquake relocations of shallow seismicity along the SAF

Matthew Tarling, 2015 - Slip distribution in scaly fabrics

Charlotte Bate, 2014 - Development of Quantitative Measures of Seismically-Induced Brittle Fracture

Kelsey Lamothe, 2014 - Characterization of wear material asssociated with silica lubrication

Veronica Schnitzer, 2014 - Variables controlling desiccation cracking and polygon formation




Images in Title: "Earthquake" patterns from Liu and Rice (2005) JGR, Fig. 5. slip/strike plot in model subduction zone earthquakes. "Processes" image is nano-scale image of core from the 2012 IODP Expedition 343 to the Japan Trench.