2015 GeoPRISMS Theoretical and Experimental Institute on Subduction Cycles and Deformation

Portofino Hotel & Marina, Redondo Beach, CA
Bayside Ballroom
October 12-14, 2015

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The Theoretical and Experimental Institute (TEI) for the Subduction Cycles and Deformation (SCD) initiative is held on the three full days of October 12-14 and is intended to provide a summary of progress made in the science objectives of the SCD initiative (as discussed in the Science and Implementation plan available through geoprisms.org). Applicants do not have to have worked on projects funded by GeoPRISMS. We expect a broad and diverse audience drawn from domestic and international researchers, including graduate students and early career scientists, who are interested in the structure and dynamics of subduction zones.


The TEI is funded by the National Science Foundation through the GeoPRISMS Office at the University of Michigan. There is no registration fee. Due to space restrictions the meeting will be strictly limited to 150 participants. We will be able to cover on-site expenses (venue costs, hotel expenses based on double occupancy, and breakfast+lunch) for up to 120 participants. Most participants will have to cover travel to and from the meeting. Partial funding for travel is available for students and postdocs. We will not be able to provide dinner on-site but there are plenty of restaurants nearby.

Confirmed participants whose on-site expenses are covered are expected to arrive on Sunday afternoon and leave on Thursday morning.

 Organizing Committee

Jeff Freymueller (University of Alaska Fairbanks)
Sarah Penniston-Dorland (University of Maryland)
Donna Shillington (Columbia/LDEO)
Kelin Wang (Pacific Geoscience Centre)
Erin Wirth (University of Washington)
Gene Yogodzinski (University of South Carolina)

Ex officio: Peter van Keken (GeoPRISMS Office/University of Michigan)

 Important Dates

 Monday July 27: Applications are invited via geoprisms.org
 Friday August 21: Application deadline
 Friday August 28: Successful applicants are invited to confirm participation
 Friday September 11: Deadline for confirmation of attendance
 Late September: Final meeting agenda is released


The Portofino hotel at Redondo Beach, CA. The hotel is located just 8 miles (13 km) south of the main Los Angeles airport (LAX). Shuttle service is available for transport from and to the airport in addition to cab services.

GeoPRISMS Student and Postdoc Symposium
 icon-map-marker Portofino Hotel, Redondo Beach, CA
Pacific Ballroom I

Sunday October 11, 2015

On Sunday before the meeting we will hold a student and postdoc symposium which will feature short presentations by the attendees and discussion with the conveners and NSF program managers. The meeting starts at 3 pm. We encourage all students and postdocs to attend and to arrange their travel accordingly, after confirmation of attendance.

Participant list (last update October 8)


3:00 – 3:10 Welcome and Symposium Objectives
3:10 – 3:30 Introduction to GeoPRISMS/Welcome from NSF – Peter van Keken (U. Michigan), Jennifer Wade (NSF)
3:30 – 3:55 The Incoming Plate & Shallow Forearc – Sarah Penniston-Dorland (U. Maryland), Peter van Keken
3:55 – 4:20 The Megathrust – Jeff Freymueller (U. Alaska)
4:20 – 4:45 The Slab, Mantle Wedge & Arc Crust – Gene Yogodzinski (U. South Carolina)
4:45 – 5:00 Coffee Break
5:00 – 5:30 Subduction Zone Observatory Discussion – Joan Gomberg (USGS)
5:30 Student Round Table Introductions
7:00 Dinner – Pacific Ballroom II

agenda (PDF)

Student Symposium | Sunday, October 11

 icon-caret-right Introduction to GeoPRISMS / Welcome from NSF | Peter van Keken (U. Michigan), Jennifer Wade (NSF)
icon-caret-right The Incoming Plate & Shallow Forearc | Sarah Penniston-Dorland (U. Maryland), Peter van Keken
icon-caret-right The Megathrust | Jeff Freymueller (U. Alaska)
icon-caret-right The Slab, Mantle Wedge & Arc Crust | Gene Yogodzinski (U. South Carolina)
icon-caret-right Subduction Zone Observatory Discussion | Joan Gomberg (USGS)

Day 1 | Monday, October 12

 icon-caret-right Introductory to GeoPRISMS | Peter van Keken (U. of Michigan, GeoPRISMS)

 icon-caret-right Welcome from NSF | Jenn Wade (NSF)

Incoming Plate (convener: Kelin Wang)
 icon-caret-right Keynote: Geophysical constraints on incoming plate hydration | Doug Wiens (Washington University)
 icon-caret-right Invited: Deformation and strength of the incoming plate: Observations & simulations | Magali Billen (UC Davis)
 icon-caret-right The Water content of the Juan de Fuca plate entering the Cascadia Subduction margin | Pablo Canales (WHOI)

Discussion (Suzanne Carbotte)

The Shallow Forearc (convener: Donna Shillington)

Discussion (Harold Tobin)

 icon-caret-right Sediment pathways across trench slopes: Results from Numerical Modeling | Milene Cormier (U Rhode Island)
 icon-caret-right Recovering all geodetic strain along the Nicoya subduction interface | Christos Kyriakopoulos (UC Riverside)
icon-caret-right Crustal recycling by subduction erosion in Central Mexico | Susanne Straub (Columbia U)

icon-caret-right Structure and estimated phsyical properties of the Cascadia subduction zone accretionary wedge, Grays Harbor, Washington | Susanna Webb (U of Wisconsin)

Day 2 | Tuesday, October 13

The Megathrust (convener: Jeff Freymueller)

icon-caret-right Invited: Observing multiscale temporal behavior on a megathrust: Transient behavior and the 2012 Mw 7.6 seismic event | Rocco Malservisi (South Florida)
icon-caret-right Two years of deep slow slip in New Zealand, in fits and spurtsNoel Bartlow (UC San Diego)
Discussion (Susan Schwartz)

Slab Processes (convener: Sarah Penniston-Dorland)
 icon-caret-right Keynote: Slab ProcessesBrad Hacker (UC Santa Barbara)
icon-caret-right Sediment melt at the edges of the Aeolian arc: Implications for hot vs cold subduction zone models | Esteban Gazel (Virginia Tech)
icon-caret-right Effects of 3-D slab geometry and oblique subduction on mantle wedge flow and thermal structure: Examples from NE Japan | Ikuko Wada (Minnesota)

icon-caret-right Invited: Accessing slab processes through numerical models | Pierre Bouilhol (Durham U)
icon-caret-right Deformation within the subducted Nazca slab from seismic anisotropy | Caroline Eakin (Southampton)
icon-caret-right Slab melting beneath the southern Cascade Arc driven by dehydration of altered oceanic peridotite | Kristina Walowski (U of Edinburgh)
Discussion (Paul Wallace)

 icon-caret-right Deep long-period earthquakes (DLPs) beneath Mount St. Helens | Jiangang Han (U of Washington)

icon-caret-right Tomographic imaging of the magmatic system at Mount St. Helens with the iMUSH broadband array | Carl Ulberg (U of Washington)

Day 3 | Wednesday, October 14

Mantle Wedge & Arc Crust (convener: Gene Yogodzinski)

icon-caret-right Keynote: Distinctly different parental magmas for calc-alkaline plutons and tholeitiic lavas in the central and eastern Aleutian arcPeter Kelemen (Columbia U)
icon-caret-right Constructing island arc crust: the volcanic to plutonic transition in the Rosario segment of the Cretaceous Alisitos Arc, Baja, Mexico | Sue DeBari (Western Washington)
icon-caret-right Thermobarometric constraints from primitive arc magmas: A review | Christy Till (Arizona State U)
icon-caret-right Interpreting seismic anisotropy in subduction zones: The role of deformation history | Phil Skemer (Washington University)
icon-caret-right Invited: Successes and limitations in the seismic imaging of Alaskan volcanoes | Ellen Syracuse (Los Alamos National Lab)
icon-caret-right Volcanism from slab to surface: The iMUSH project | Geoff Abers (Cornell)
Discussion (Katie Kelley)

International opportunities and future planning (convener: Peter van Keken)

icon-caret-right VoiLA: Volatile recycling in the Lesser Antilles arc | Saskia Goes (Imperial)
icon-caret-right JAMSTEC Marine geophysical projects for researches on Subduction Cycles & DeformationShuichi Kodaira (JAMSTEC)
icon-caret-right The Tonga-Kermadec-New Zealand arc – Lau back-arc: Future directionsSimon Turner (Macquarie University)

 icon-caret-right SZO overview  | Terry Plank (Columbia U)
icon-caret-right SZO – Perspectives from the student & postdoc symposium | Erin Wirth (U of Washington)
Open mike
Discussion (Peter van Keken)
 icon-caret-right Introduction to Catalina Island field trip | Sarah Penniston-Dorland (Maryland)

A field trip (led by Sarah Penniston-Dorland) will be organized on Santa Catalina Island on Thursday October 15. This will give participants the opportunity to see amphibolite- and blueschist-facies rocks that have been exhumed from a paleosubduction zone. There is no NSF funding for this trip and participants will need to cover all expenses. We estimate that the cost (including transport from hotel to ferry terminal, ferry ride, transport on Catalina, breakfast and lunch; accommodation at the Portofino for one more night) is around $400-$500 per person. The departure time from the hotel (to catch the first ferry to the island) will be at 5:15am. Cost for participants who do not require an additional night of accommodation will be adjusted. Capacity for the field trip is limited and we will confirm participants on a first-come, first-served basis after receipt of payment.

Selected TEI participants have been contacted about funds to help cover travel costs. If you have received an email from Peter regarding reimbursement, fill out the reimbursement form and mail to Jeanne (jbisanz <at> umich.edu). Include original receipts with your form. In the case that you are being reimbursed for airfare, you may email the e-ticket. Please contact Jeanne with any questions. Thank you!


We would like to make optimized PDFs of your presentation available on the meeting website after the meeting. We will not post anything without your explicit permission. We will check with the presenters individually to see if the presentations (or parts thereof) are available for public dissemination.

cover-abstract-volumeHelpful links

Agenda (last update October 6)
Poster schedule (last update October 8)
Abstract volume (last update October 8)
Shuttle to and from the LAX airport
Supershuttle: $16 one way. Must be booked in advance
Taxi: $30-40 one way