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Dynamics and evolution of Earth’s coupled core-mantle system
The Royal Astronomical Society
Burlington House
Start Time: 11 May 2018 - 10:30
End Time: 11 May 2018 - 15:30

A RAS Specialist Discussion Meeting organised by Chris Davies (Leeds);
Andy Biggin (Liverpool); Dario Alfe (UCL)



Interactions between Earth's two great heat engines, the liquid core and silicate mantle, play a fundamental role in shaping the dynamics and evolution of our planet and produce potentially observable signatures that provide unique insight into the innermost workings of the core-mantle sytsem.  Recent advancements in techniques and capability are illuminating the core-mantle system in unprecedented detail and challenging established views.  This specialist discussion will focus on the big unresolved questions in deep Earth research with particular emphasis on core-mantle interactions.  Talks and posters will comprise a range of interdisciplinary topics related to this theme, including seismology, geodynamics, mineral physics, geochemistry and geo/paelomagnetism.


10.00 - 10.30 Tea and Posters

10.30 – 11.10 Invited: Bruce Buffett (University of California at Berkeley)
An overview of core-mantle interactions
11.10 – 11.25 Keke Zhang (University of Exeter)
Core-mantle coupling: controlling the core convection via the precessing mantle
11.25 – 11.40 Jeremy Rekier (Royal Observatory of Belgium)
Coupled inertio-rotational modes of the Earth and planets
11.40 – 11.55 Courtney Sprain (University of Liverpool)
Long-term variations in Earth's magnetic field: Paleomagnetic perspectives and numerical simulations
11.55 – 12.10 Maxwell Brown (University of Iceland)
A Global Model for the Laschamp and Mono Lake Geomagnetic Field Excursions
12.10 – 12.30 Poster introductions

12.30 – 13.30 Lunch and Posters

13.30 – 14.10 Invited: George Helffrich (Earth?Life Science Institute, Tokyo Institute of Technology)
Stratification without layers
14.10 – 14.25 Sanne Cottaar (University of Cambridge)
A new seismic model for the outer core and implications for an anomalous layer at its top
14.25 – 14.40 John Brodholt (University College London)
Composition of the low seismic velocity E? layer at the top of Earth's core
14.40 – 14.55 Takashi Nakagawa (JAMSTEC)
Effects of stable region beneath the core-mantle boundary region in a coupled core-mantle evolution model
14.55 – 15.10 Grace Cox (Dublin Institute for Advanced Studies)
Penetration of boundary-driven flows into a thermally-stratified outer core
15.10 – 15.25 Daniel Frost (University of California at Berkeley)
Axially dependent Inner Core anisotropy from low order inner core convection

15.30 – 16.00 Tea and Posters


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Admission is free for RAS Fellows, £15 for non-Fellows (£5 for full-students).  Cash and cheque payments only.