245 Rock Deformation and the Dynamics of Mountain Building: A Session Honoring the Scientific Contributions of John P. Platt, Part I

We welcome contributions inspired by the diverse research of John Platt in structural geology and tectonics showing how the rock record can be used to illuminate the fundamental processes of crustal deformation and mountain building.

Wednesday, 22 October 2025
8:00 AM - 12:00 PM
HBGCC, 217D

Participants

• Chair Frances Cooper
• Chair Simon Wallis

Presentations

• 8:05 AM
  Rock deformation and the dynamics of mountain building : a celebration of John Platt’s legacy
  Simon Wallis, University of Tokyo, Tokyo
  412535 (Technical Sessions)
• 8:20 AM
  Spatially and temporally changing tectonic regimes in the southern part of the Northern Highland Terrane, Caledonian mountain belt, Scotland
  Richard Law, Virginia Polytechnic Institute and State University, Blacksburg, VA and Ella Davis, Virginia Polytechnic Institute and State University, Blacksburg, VA and Calvin Mako, Arizona Geological Survey, Tucson, AZ and Rob Strachan, University of Portsmouth, Portsmouth and Ryan Thigpen, University of Kentucky, Lexington, KY and Sarah Morse, University of Kentucky, Lexington, KY
  412375 (Technical Sessions)
• 8:40 AM
  New P-T-t results for the southern Northern Highlands terrane, Scotland: Constraints for Caledonian deformation along the Sgurr Beag Thrust
  Sarah Morse, University of Kentucky, Lexington, KY and Ryan Thigpen, University of Kentucky, Lexington, KY and Richard Law, Virginia Polytechnic Inst & State Univ, Blacksburg, VA and Calvin Mako, Arizona Geological Survey, University of Arizona, Tucson, AZ and Ella Davis, Virginia Polytechnic Inst & State Univ, Blacksburg, VA and Rob Strachan, University of Portsmouth, Portsmouth and Mark Caddick, Virginia Tech, Blacksburg, VA
  414107 (Technical Sessions)
• 8:55 AM
  Age, composition and history of the rifted Southern California mafic forearc basement
  Starla Toto, UT Austin, Austin, Texas and Marty Grove, Stanford University, Stanford, CA and David Kimbrough, San Diego State University, San Diego, CA and John Platt, University of Southern California, Los Angeles, CA and Nikki Seymour, Occidental College, Los Angeles, CA
  413272 (Technical Sessions)
• 9:10 AM
  Poorly-constrained Paleosubduction Interface Slip Directions from Subduction Complexes: An Example from the Franciscan Complex of California.
  John Wakabayashi, California State University, Fresno, Fresno, California
  412836 (Technical Sessions)
• 9:40 AM
  Re-evaluating plate tectonic reconstructions of the Franciscan complex, USA, and along-strike regions using ocean plate stratigraphy
  Jonny Wu, University of Arizona, Tucson and John Wakabayashi, California State University, Fresno, Fresno and Jordan Wang, University of California, Los Angeles, Los Angeles, CA and Edward Clennett, University of Arizona, Tucson
  413179 (Technical Sessions)
• 9:55 AM
  An exhumed subduction plate interface recording deep slow slip conditions: observations from the Epidote Amphibolite unit of the Catalina Schist, Santa Catalina Island/Pimu’nga, CA
  Cailey Condit, University of Washington, Seattle, WA and William Hoover, University of Washington, Seattle, WA and Peter Lindquist, University of Washington, Earth and Space Sciences, Seattle, WA and Victor Guevara, Amherst College, Amherst, MA and Amy Moser, Hamilton College, Clinton, NY and Sean Mulcahy, WWU, Bellingham, WA and Gabe Epstein, University of Miami, Miami, FL
  413896 (Technical Sessions)
• 10:10 AM
  Reconstructing Farallon subduction history from mantle slabs and correlating to the rock record
  William McCraine, University of Arizona, Tucson, AZ and Jonny Wu, University of Arizona, Tucson, AZ
  413764 (Technical Sessions)
• 10:25 AM
  Were amphibolite facies rocks within the Catalina Schist metamorphosed beneath the leading edge of the western Peninsular Ranges batholith prior to juxtaposition with lower grade blueschists?
  Marty Grove, Stanford University, Stanford, California and Starla Toto, UT Austin, Austin, Texas and Nikki Seymour, Occidental College, Los Angeles, California
  414192 (Technical Sessions)
• 10:40 AM
  Multiscale Transects Illuminate the Shallow-to-Deep Crustal Architecture of the Western Transverse Ranges Mountain Belt
  Yu-Huan Hsieh, University of Houston, Houston, TX and John Suppe, University of Houston, Houston, TX
  413756 (Technical Sessions)