Registration Deadline: November 20, 2018
All mini-workshops are free of charge and open to all. However, attendance and food may be limited so register early for fullest consideration. For more information and registration visit the GeoPRISMS website at: /agu2018-registration/
Questions? Contact the GeoPRISMS Office at email@example.com
* ExTerra: Evolution of arc crust
Sunday December 9, 2018 | 8:00am – 12:15pm | Kimpton Hotel Monaco, Athens Room
Conveners: Stacia Gordon (University of Nevada-Reno) and Alicia Cruz-Uribe (University of Maine)
Inspired by the success of convergent margin research funded through GeoPRISMS and discussions generated at ExTerra meetings, this workshop will gather together researchers with expertise in all aspects of the arc system on the Sunday preceding the AGU Fall Meeting in Washington, DC. The goal is to gather a broad group of geoscientists that use a variety of different approaches (field, experimental, petrological, geochemical, geochronological, seismic, numerical modeling) applied to different parts of the arc (the subducting plate, mantle, magma plumbing system, supracrustal rocks). The group will discuss what the major questions are that still surround the evolution of arc crust and what tools and methods will best answer these questions. The meeting will also serve to provide a space where early career researchers can network with more senior personnel, and where scientists from a variety of subdisciplines who work on different arc sections around the world can compare and contrast observations. In addition, this gathering of the arc crust community will make a plan for future convergent margin research, specifically on arc crust. It is important to establish new goals and questions concerning arc crust before GeoPRISMS has fully ended to keep the momentum that this program established.
The format of the workshop will include a keynote lecture given by Oliver Jagoutz (MIT), followed by breakout groups on different areas of scientific interest within the broader arc system: 1) subduction/mantle influences, 2) plutonic plumbing system/magma storage, 3) volcanic components, and 4) supracrustal (metamorphic) components. One proposed outcome of the workshop will be for multiple groups to develop collaborative proposals to NSF EAR programs for research and field forums/institutes, which could then be leveraged for the submission of a larger proposal.
* Investigating subduction processes at the Hikurangi margin, New Zealand
Sunday December 9, 2018 | 1:15pm – 5:30pm | Kimpton Hotel Monaco, Athens Room
Conveners: Laura Wallace (GNS Science, New Zealand, Univ. Texas Institute for Geophysics), Dan Bassett (GNS Science, New Zealand), Heather Savage (Lamont Doherty Earth Observatory, Columbia University), Samer Naif (Lamont Doherty Earth Observatory, Columbia University), Shuo Shuo Han (Univ. Texas Institute for Geophysics), and Patrick Fulton (Texas A&M University)
The Hikurangi margin offers an outstanding opportunity to address many of the key topics of GeoPRISMS Subduction Cycles and Deformation. Major international experiments to investigate subduction processes at the Hikurangi margin have taken place in the last year including two IODP drilling expeditions to investigate shallow slow slip events, and two seismic experiments with the R/V Langseth and R/V Tangaroa to investigate controls on plate coupling and slow slip. The objectives of a Hikurangi margin mini-workshop are to discuss new observations from the New Zealand focus site and their implications for an integrated understanding of subduction processes, as well as planning for upcoming experiments.
The first half of the miniworkshop will introduce the latest results from the recent GeoPRISMS-related research efforts at the Hikurangi margin (including IODP drilling and seismic experiments), and a discussion of the implications of these for GeoPRISMS SCD questions. The second half of the miniworkshop will consist of presentations on upcoming plans for field experiments and research at the Hikurangi focus site, and discussion on coordination of these efforts. We will also discuss any research gaps that might exist. In addition to a small number of overview talks on recent and future experiments, we will offer the opportunity for a limited number of short (~2 minutes) pop-up talks on synergistic activities at the Hikurangi subduction zone.
In addition to researchers focused on the Hikurangi margin, we welcome attendees interested in subduction deformation and megathrust processes in Cascadia and Alaska, to cross-fertilize ideas and research outcomes among all three of the GeoPRISMS primary sites. Student and early-career scientist participation is also encouraged.