CRESCENT Topical Workshop

Fluids in Cascadia

April 23-25, 2025, University of Oregon Portland Northeast Campus, Portland, OR

Workshop Goals

Fluids in Cascadia Topical Workshop

Fluids are ubiquitous in subduction zones and play a fundamental role in modulating many observed processes along the megathrust and other related faults, including slip behaviors and deformation mode. This cross-disciplinary workshop brings together geophysicists, geologists, geochemists, and modelers to discuss the role of fluids in Cascadia.

Workshop topics include fluid sources (hydration of the oceanic slab, thermal and petrologic constraints on dehydration reactions, dewatering of sediments); fluid pathways, fluxes, and transport properties; pore pressure and fault strength; and fault slip/deformation behavior along the megathrust from the deformation front, through the seismogenic zone, and into the regions of slow slip and tremor and creep.

Attendance

Please complete the application form by March 1. We will send an email to confirm your participation in the workshop.

Apply here

Travel & Lodging

April 23-25, 2025

University of Oregon, Portland, OR

Venue

This CRESCENT Fluids in Cascadia Workshop will be held at the UO Portland NE Campus on April 23-25, 2025.

Flights, ground transportation and parking

UO Portland NE Campus is a 15 minute drive from PDX international airport.

The campus is near stops on bus lines 17, 70, and 75. Routes 17 and 70 operate on 30-minute intervals from downtown Portland, and route 75 operates on 15-minute intervals from SE Portland, connecting with the MAX Blue, Red and Green Lines. Visit the TriMet website for updated schedules and to plan your rides.

For maps, directions, parking and other ground transportation information, see here.

Lodging

Radisson Hotel Portland Airpor t (6233 N.E. 78th Ct., Portland, OR, 97218, US) is CRESCENT’s host hotel for overnight guests. Radisson offers a complimentary breakfast, free airport shuttle, on-site restaurant and full business center.

Limited travel and lodging support will be available by application. For those booking travel independently, a preferred block rate is available for bookings made prior to May 30, 2025.

You can book a room at La Quinta by following this link.

Agenda

Notes: All times Pacific Time.

Wednesday, April 23

2:00 pm: Introduction to Fluids in Subduction
5:00 pm: Welcome mixer

Thursday, April 24

8:30 am: Opening Remarks
8:45 am: Session 1 – Initial Fluid State of Subducting Material
10:00 am: Session 2 – Plate Boundary Fluid Evolution
1:00 pm: Session 3 – Shallow Fluids Updip of the Seismogenic Zone
2:00 pm: Session 4 – Poster Session

Friday, April 25

8:30 am: Session 5 – Fluids in the Seismogenic Zone
10:00 am: Session 6 – Poster Session
1:00 pm: Session 7 – Fluids and Slow Slip: Geology and Experiments
2:15 pm: Session 8 – Fluids and Slow Slip: Geophysical Constraints
3:15 pm: Session 9 – Vision for the Future

Workshop Planning Committee

CRESCENT’s Cascadia Subduction Fluids Special Interest Group leaders bring expertise and connections from across the spectrum of engineering, research, and practice to guide the planning process.

Cailey Condit
University of Oregon
ccondit@uw.edu

Eric Dunham
Stanford University
edunham@stanford.edu

Amanda Thomas
University of Oregon
amt.seismo@gmail.com