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SCEC Community Rheology Model Workshop: Loading of Southern California Faults: Bulk Lithospheric Deformation and/or Localized Ductile Shear Zone Strain


Peridotitic mylonite in a petrographic microscope. By Strekeisen - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=44917236

Applications Due: August 17, 2018
Participants: 50 or less

Date: September 8, 2018
Location: Hilton Palm Springs Resort

SCEC Award: 18202

Conveners: Wayne ThatcherWhitney Behr, Elizabeth Hearn, Greg Hirth and Michael Oskin

SUMMARY: A workshop on the SCEC Community Rheology Modeling (CRM) initiative entitled “Loading of Southern California Faults: Bulk Lithospheric Deformation and/or Localized Ductile Shear Zone Strain” will be held on Saturday, September 8, 2018, in Palm Springs, CA. The goal of the workshop is to assess the degree to which current deformation is concentrated on or near faults or distributed more broadly across the Pacific-North America plate boundary in southern California. We encourage participation by scientists with expertise in (1) southern California geology, (2) laboratory rock mechanics, (3) tectonic geodesy, (4) seismology and (5) deformation modeling. Limited funds are available for travel support, with priority for students, early career scientists.

All potential CRM contributors and users are welcome and attendees should be prepared to take an active role in the proceedings!

Presentation slides may be downloaded by clicking the links following the title. PLEASE NOTE: Files are the author’s property. They may contain unpublished or preliminary information and should only be used while viewing the talk.

SATURDAY, SEPTEMBER 8, 2018

08:30 - 09:00 Workshop Check-In  
09:00 - 10:20 Session 1: CRM Overview and Updates; Workshop Outline and Goals Moderator: Elizabeth Hearn
09:00 - 09:20 CRM Overview and Workshop Introduction Elizabeth Hearn
09:20 - 09:40 Geologic Framework Update (PDF, 888KB) Mark LeggMichael Oskin
09:40 - 10:00 Rheology Update Greg Hirth / Billy Shinevar
10:00 - 10:20 Group Discussion All
10:20 - 10:30 Break  
10:30 - 12:00 Session 2: Localized versus Bulk Ductile Deformation: Lessons from Lab, Modeling and the Rock Record Moderator: Greg Hirth / Michael Oskin
10:30 - 10:50 Focus: Modeling and Laboratory Rock Mechanics (PDF, 3.3MB) Laurent Montesi
10:50 - 11:10 Focus: Geology and Structure Elisabeth Nadin
11:10 - 11:30 Focus: Process and Rheology Elena Miranda
11:30 - 12:00 Group Discussion: Where do we go next?
  • Specific scientific issues (e.g. Do all California faults have a localized ductile shear zone?)
  • Ways to contribute to CRM in SCEC5
All
12:00 - 13:00 Lunch  
13:00 - 14:45 Session 3: Localized versus Bulk Ductile Deformation: Lessons from Geophysics Moderator: Wayne Thatcher
13:00 - 13:20 Focus: Tectonic Geodesy Eileen Evans
13:40 - 14:00 Focus: Seismology David Shelly
14:00 - 14:20 Focus: SoCal Seismic Velocity Structure Heather Ford
14:20 - 14:45 Group Discussion: Where do we go next?
  • Specific scientific issues
  • Ways to contribute to CRM in SCEC5
All
14:45 - 15:00 Break  
15:00 - 17:00 Session 4: Provocative Talks and Discussion Moderator: Elizabeth Hearn
15:00 - 15:20 The Promise of Constraining Crustal Rheology from Vp and Vs Billy Shinevar
15:20 - 15:40 Strike-Slip Earthquake Cycle Modeling with Localized or Bulk Ductile Deformation (PDF, 6MB) Eric Dunham
15:40 - 17:00 Group Discussion: Workshop Recommendations and Future Plans All
17:00 Adjourn  

PARTICIPANTS

Roland Bürgmann (UC Berkeley)
Rachel Bernard (UCSD SIO)
Jie Chen (CEA/China)
Emily Chin (UCSD SIO)
Ray Chiou (NAVFAC)
Andrea Donnellan (Caltech)
Eric Dunham (Stanford)
Brittany Erickson (Portland State)
Eileen Evans (CSU Northridge)
Yuri Fialko (SIO)
Heather Ford (UCR)
Katherine Guns (U of Arizona)
Elizabeth Hearn (Capstone Geo)
William Holt (SUNY-Stony Brook)
Takane Hori (JAMSTEC)
Heidi Houston (U of Washington)
Mong-Han Huang (U of Maryland)
Lonnie Hufford (UCSD)
Tsuyoshi Ichimura (U. of Tokyo)
Benjamin Idini (Caltech)
Junle Jiang (Cornell)
Barbara John (U of Wyoming)
Christopher Johnson (SIO)
Taka Kanaya (U of Maryland)
Jeonghyeop Kim (SUNY-Stony Brook)
Valere Lambert (CalTech)
Nadia Lapusta (CalTech)
Jing Liu (CEA/China)
Elena Miranda (CSU Northridge)
Laurent Montesi (U of Maryland)
Alex Morelan (UC Davis)
Elisabeth Nadin (U of Alaska)
David Okaya (USC)
John Platt (USC)
Fred Pollitz (USGS)
Chris Rollins (Michigan)
David Sandwell (SIO)
Vera Schulte-Pelkum (U Colorado, Boulder)
David Shelly (USGS)
William Shinevar (MIT)
Chi-Hsien Tang (Academia Sinica, Taiwan)
Wayne Thatcher (USGS)
Terry Tullis (Brown)
Valeria Villa (Irvine Valley)
Yiran Wang (UC Davis)
Zhuo Yang (Harvard)
WENQIAN YAO (CEA/China)
Jiuxun Yin (Harvard)
Andrew Zuza (UNR)

This workshop is held prior to the 2018 SCEC Annual Meeting.