Sunday
2:00 pm - 9:00 pm
Arrival and Check-in
6:00 pm - 7:00 pm
Dinner
7:30 pm - 7:40 pm
Introductory Comments by GRC Site Staff / Welcome from the GRC Chair
7:40 pm - 9:30 pm
From Accretion to Today: The Evolution of Earth's Deep Interior
While many events and processes
related to Earth’s evolution remain unknown or enigmatic, meteorites and
igneous rocks preserve information about Earth’s origin and early history,
helping to ground-truth models of planetary accretion and (ongoing?)
differentiation. These provide a temporal framework for understanding the
evolution of Earth’s present-day deep interior, as well as its relationship to
the surface.
Discussion Leader: Matthew Jackson (University of California, Santa Barbara, USA)
7:40 pm - 7:50 pm
Introduction by Discussion Leader
7:50 pm - 8:25 pm
Audrey Bouvier (University of Western Ontario, Canada)
"Constraints from Meteorites on the Formation of the Earth"
8:25 pm - 8:40 pm
Discussion
8:40 pm - 9:15 pm
Richard Walker (University of Maryland, USA)
"Implications of Isotopic Heterogeneity of Short-Lived Systems for Earth Formation and Long-Term Evolution"
9:15 pm - 9:30 pm
Discussion
Monday
7:30 am - 8:30 am
Breakfast
8:30 am - 9:00 am
Group Photo
9:00 am - 12:30 pm
Geochemical Heterogeneity:
Past and Present
Geochemical heterogeneities provide
information on Earth’s long-term interior structure and dynamics. Important
questions include: how do geochemical heterogeneities relate to ancient
geodynamics? How do observed heterogeneities relate to present-day structures
imaged in deep Earth? How did these heterogeneities form? To what extent are
observed heterogeneities accurate proxies for distinct interior reservoirs?
Discussion Leader: Cornelia Class (Lamont-Doherty Earth Observatory, USA)
9:00 am - 9:10 am
Introduction by Discussion Leader
9:10 am - 9:45 am
Dominique Weis (University of British Columbia, Canada)
"Deep and Long-Lasting Mantle Plumes with Enriched Mantle (EM-1) Signatures"
9:45 am - 10:05 am
Discussion
10:05 am - 10:35 am
Coffee Break
10:35 am - 11:10 am
Rita Parai (Washington University in St. Louis, USA)
"Ancient and Relatively Modern Mantle Heterogeneities from Xenon Isotopes in Mantle Rocks"
11:10 am - 11:30 am
Discussion
11:30 am - 12:05 pm
Catherine Chauvel (Université Grenoble Alpes, France)
"Size and Nature of Chemical Heterogeneities in a Weak Plume: The Polynesian Case"
12:05 pm - 12:30 pm
Discussion
12:30 pm - 1:30 pm
Lunch
1:30 pm - 4:00 pm
Free Time
3:00 pm - 4:00 pm
Power Hour
The GRC Power Hour is an optional informal gathering open to all meeting participants. It is designed to help address the challenges women face in science and support the professional growth of women in our communities by providing an open forum for discussion and mentoring.
Organizers: Marine Lasbleis (Tokyo Institute of Technology, Japan) and Roberta Rudnick (University of California, Santa Barbara, USA)
4:00 pm - 6:00 pm
Poster Session
6:00 pm - 7:00 pm
Dinner
7:30 pm - 9:30 pm
Dynamics of Planetary
Interiors
Convection within Earth and planetary
bodies plays a critical role in heat transfer, compositional redistribution, and
surficial regeneration. The global plan-form of convection is tied to tectonic
plate behavior, involving phenomena that
call for cross-disciplinary expertise, like lithosphere and asthenosphere
rheology, state, and chemistry. We encourage focus on the time-varying nature
of convection and, for example, feedbacks between interior dynamics and
initiation of plate tectonics.
Discussion Leader: Allen McNamara (Michigan State University, USA)
7:30 pm - 7:40 pm
Introduction by Discussion Leader
7:40 pm - 8:15 pm
Scott King (Virginia Polytechnic Institute and State University, USA)
"Mantle Viscosity, Plate Motions, Geoid, and Recent Tomographic Imaging: It's More Complex Than We Thought"
8:15 pm - 8:35 pm
Discussion
8:35 pm - 9:10 pm
Craig O'Neill (Macquarie University, Australia)
"The Long Legacy of Deep Mantle Processes"
9:10 pm - 9:30 pm
Discussion
Tuesday
7:30 am - 8:30 am
Breakfast
9:00 am - 12:30 pm
The Transition Zone
and Its Relationship to the Evolving Earth
The phase transitions in the olivine
system at 410 and 660 km depth bound Earth’s transition zone, and depend upon
temperature, composition, and possible presence of water. Investigations of the
transition zone shed light on dynamic phenomena, such as plumes and subduction,
that introduce/mediate thermal and chemical heterogeneity.
Discussion Leader: Caroline Beghein (University of California, Los Angeles, USA)
9:00 am - 9:10 am
Introduction by Discussion Leader
9:10 am - 9:45 am
Nicholas Schmerr (University of Maryland, College Park, USA)
"Where Are All the Discontinuities? Evolving Our Understanding of the Mantle Transition Zone"
9:45 am - 10:05 am
Discussion
10:05 am - 10:35 am
Coffee Break
10:35 am - 11:10 am
Maxwell Rudolph (Portland State University, USA)
"Structure, Dynamics, and Evolution of the Mid Mantle"
11:10 am - 11:30 am
Discussion
11:30 am - 12:05 pm
Wendy Panero (Ohio State University, USA)
"Prospecting for the Transition Zone's Water"
12:05 pm - 12:30 pm
Discussion
12:30 pm - 1:30 pm
Lunch
1:30 pm - 4:00 pm
Free Time
4:00 pm - 6:00 pm
Poster Session
6:00 pm - 7:00 pm
Dinner
7:30 pm - 9:30 pm
Multiscale Heterogeneity
in Earth's Lower Mantle: Sharpening Our Focus
Heterogeneity is being mapped over
several orders of magnitude in Earth’s mantle, from km level to 1000+ km level. Advances in seismic imaging are driven by new
(and more) data, novel methodologies, and new regions of inquiry. Mapped
structures include subducting slabs, plumes, LLSVPs, anisotropy, D”
discontinuities, and other heterogeneities. Seismological ‘snap-shots’ provide
(increasingly) good spatial detail, but require cross-disciplinary linkages to
understand planetary dynamics and evolution in their full temporal context.
Discussion Leader: Barbara Romanowicz (University of California, Berkeley, USA)
7:30 pm - 7:45 pm
Introduction by Discussion Leader
7:45 pm - 8:20 pm
Patrick Cordier (University of Lille, France)
"Rheology of the Mantle: Starting from the Atomic Scale"
8:20 pm - 8:35 pm
Discussion
8:35 pm - 9:10 pm
Mingming Li (University of Colorado Boulder, USA)
"Evolving Morphology and Distribution of Compositional Heterogeneities in the Lowermost Mantle"
9:10 pm - 9:30 pm
Discussion
Wednesday
7:30 am - 8:30 am
Breakfast
9:00 am - 12:30 pm
The Dynamic Core-Mantle
Boundary Region
As the largest absolute density
contrast in the Earth, the core-mantle boundary (CMB) region continues to
attract investigations across many geodisciplines. Structures include thin mantle-side layering
(ULVZs), which may contain partial melt, and core topography. Chemical exchange
between the silicate mantle and the metal-rich core has been proposed as a
source of mantle chemical heterogeneity. Mantle-side structures (e.g., LLSVPs)
should affect CMB heat flow, and thus processes within the core.
Discussion Leader: Sebastian Rost (University of Leeds, United Kingdom)
9:00 am - 9:10 am
Introduction by Discussion Leader
9:10 am - 9:45 am
Nicholas Mancinelli (Brown University, USA)
"Small-Scale Topography and Heterogeneity of the Core-Mantle Boundary Region: Global Constraints from Scattered Core Waves"
9:45 am - 10:05 am
Discussion
10:05 am - 10:35 am
Coffee Break
10:35 am - 11:10 am
Andrew Walker (University of Leeds, United Kingdom)
"Retrieving the Temperature Structure of the Lowermost Mantle with Constraints from the Mantle and Core"
11:10 am - 11:30 am
Discussion
11:30 am - 12:05 pm
June Wicks (Princeton University, USA)
"Spin State Transitions in Perovskite/Post-Perovskites - What We Can Learn from Analogues"
12:05 pm - 12:30 pm
Discussion
12:30 pm - 1:30 pm
Lunch
1:30 pm - 4:00 pm
Free Time
4:00 pm - 6:00 pm
Poster Session
6:00 pm - 7:00 pm
Dinner
7:00 pm - 7:30 pm
Business Meeting
Nominations for the Next Vice Chair; Fill in Conference Evaluation Forms; Discuss Future Site and Scheduling Preferences; Election of the Next Vice Chair
7:30 pm - 9:30 pm
Outer Core Structure,
Composition, Dynamics, and the Magnetic Field
The physics, chemistry, and dynamics
of the outer core are topics of research pursued across disciplines. From core
formation to the generation of Earth’s magnetic field, investigations of
composition (e.g., light elements) and other properties (e.g., rheology, thermal
and electrical conductivity) continue to inform us about Earth formation and
the evolution of deep Earth.
Discussion Leader: James Badro (Institut de Physique du Globe de Paris, France)
7:30 pm - 7:40 pm
Introduction by Discussion Leader
7:40 pm - 8:15 pm
Andrew Campbell (University of Chicago, USA)
"Mineral Physics of Earth's Core"
8:15 pm - 8:35 pm
Discussion
8:35 pm - 9:10 pm
Kei Hirose (Tokyo Institute of Technology, Japan)
"Chemical Evolution and the Present-Day Composition of the Liquid Outer Core"
9:10 pm - 9:30 pm
Discussion
Thursday
7:30 am - 8:30 am
Breakfast
9:00 am - 12:30 pm
Inner Core Structure,
Dynamics, and Evolution
The inner core, at the center of our
planet, harbors a number of mysteries. We do not understand the cause of hemispherical
differences in seismic signature, spatial variability in seismic anisotropy, or
the (putative) presence of a structurally
distinct innermost inner core. The dynamics, evolution, and growth of the inner
core are important for powering the geodynamo, and the inner core is an active target
of research across geodisciplines.
Discussion Leader: Arwen Deuss (Utrecht University, The Netherlands)
9:00 am - 9:10 am
Introduction by Discussion Leader
9:10 am - 9:45 am
Hrvoje Tkalcic (The Australian National University, Australia)
"The Inner Core 2.0"
9:45 am - 10:05 am
Discussion
10:05 am - 10:35 am
Coffee Break
10:35 am - 11:10 am
Daniele Antonangeli (Institut de Mineralogie, de Physique des Materiaux et de Cosmochimie , France)
"Sound Velocities of Fe and Fe-Si Alloys at High Pressure and High Temperature"
11:10 am - 11:30 am
Discussion
11:30 am - 12:05 pm
Marine Lasbleis (Tokyo Institute of Technology, Japan)
"Inner Core Dynamics: Combining Seismic Studies and Geodynamical Models"
12:05 pm - 12:30 pm
Discussion
12:30 pm - 1:30 pm
Lunch
1:30 pm - 4:00 pm
Free Time
4:00 pm - 6:00 pm
Poster Session
6:00 pm - 7:00 pm
Dinner
7:30 pm - 9:30 pm
Unsolved Problems and
Future Directions
A tradition for the Interior of the
Earth GRC is to sum up with a view of the exciting unsolved problems and
possible future directions. This session will highlight important areas of
research that hold promise for advancing our understanding of Earth’s interior.
Discussion Leader: John Hernlund (Tokyo Institute of Technology, Japan)
7:30 pm - 7:40 pm
Introduction by Discussion Leader
7:40 pm - 7:50 pm
Rene Gassmoeller (Colorado State University, USA)
"How Plume-Ridge Interaction Shapes the Crustal Thickness Pattern of the Reunion Hotspot Track"
7:50 pm - 7:55 pm
Discussion
7:55 pm - 8:05 pm
Paula Koelemeijer (University of Oxford, United Kingdom)
"Combining Seismic Tomography, Geodynamic Modelling and Mineral Physics Constraints to Study the Presence of Post-Perovskite in Earth's Lowermost Mantle"
8:05 pm - 8:10 pm
Discussion
8:10 pm - 8:35 pm
Louise Kellogg (University of California, Davis, USA)
"Chemical Geodynamics Revisited"
8:35 pm - 8:45 pm
Discussion
8:45 pm - 9:10 pm
Lars Stixrude (University College London, United Kingdom)
"Future Directions Towards Earth's Deep Past"
9:10 pm - 9:30 pm
Discussion
Friday
7:30 am - 8:30 am
Breakfast
9:00 am
Departure
