Melt in the Mantle

Melt in the Mantle's image
Created: 2016-02-19 15:47
Institution: Isaac Newton Institute for Mathematical Sciences
Description: The Earth's mantle is almost entirely solid, but on geological timescales it convects vigorously, the well-known surface expression of this being plate tectonics. At depths up to ~100 km beneath plate-tectonic boundaries (mid-ocean ridges and subduction zones), and beneath ocean islands such as Hawaii, the mantle melts, and that melt rises to the surface to feed volcanism and form new crust. Such magmatism plays a key role in the chemical evolution and dynamics of our planet. Although the basic thermodynamics of melt generation in these settings is well understood, how the melt is transported to the surface is not, despite several decades of work on the problem. Furthermore, recent observational evidence suggests that mantle melting is not restricted to the near surface (top 100 km): it may occur within the mantle transition zone (410-660 km depth) and above the core-mantle boundary (2900 km). For these deeper instances of melting, an understanding of the dynamical and thermochemical characteristics is currently lacking.

Understanding the formation and migration of melt in the mantle presents a formidable scientific and mathematical challenge. One key challenge is in bridging diverse length scales - melt lies along grain boundaries at micron scales, may focus into channels at metre scales, and migrates over 100 km. Sophisticated mathematical techniques, such as homogenisation theory, are needed to map an understanding of physics at the smallest scales to plate-tectonic scales. Seismology offers a way to image melt in the mantle, but the development of new tools in inverse theory are required to extract that information. Models of melt transport are eventually cast as a series of coupled non-linear partial differential equations, which require advanced numerical techniques to solve. This programme will bring together a broad spectrum of mathematicians and solid Earth scientists to tackle these and other fundamental challenges of melt in the mantle.
 

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Media items

Magma generation and extraction beneath mid-ocean ridges and oceanic hotspots

   33 views

Ito, G (University of Hawaii)
Monday 6th June 2016 - 14:00 to 14:45

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Tue 14 Jun 2016


Melt transport in the mantle: constraints from field observations and ideas for future work

   35 views

Kelemen, P (Columbia University, Woods Hole Oceanographic Institution, American Museum of Natural History)
Monday 18th April 2016 - 16:00 to 17:00

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Thu 12 May 2016


Seismic imaging of mantle melting processes beneath volcanic arcs and backarc spreading centers

   30 views

Wiens, D (Washington University in St. Louis)
Monday 6th June 2016 - 11:30 to 12:30

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Tue 14 Jun 2016


(De)compaction waves in porous viscoelastoplastic media and focused fluid flow

   56 views

Yarushina, V (Institutt for energiteknikk — IFE)
Wednesday 17th February 2016 - 10:00 to 11:00

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Fri 19 Feb 2016


3D Numerical Modelling of Compressible Coupled Magma/Mantle Dynamics With Adaptive Mesh Refinement

   130 views

Heister, T - Dannberg, J (Texas A&M University)
Friday 10th June 2016 - 09:00 to 11:00

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Thu 16 Jun 2016


A four-field mixed finite element method for the Biot model and its solution algorithms

   31 views

Yi, S-Y (University of Texas at El Paso)
Wednesday 8th June 2016 - 14:00 to 14:45

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Tue 14 Jun 2016


Advanced theories of two-phase flow in deformable porous media, including fluid-fluid interfaces

   49 views

Hassanizadeh, S. Majid (Universiteit Utrecht)
Tuesday 16th February 2016 - 16:00 to 17:00

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Fri 19 Feb 2016


An Approach to Large Scale Computing of Problems form Science and Technology

   52 views

Wittum, G (Goethe-Universität Frankfurt)
Thursday 9th June 2016 - 09:00 to 11:00

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Tue 14 Jun 2016


An Introduction to the Mantle Convection Community Project ASPECT

   42 views

Heister, T
Thursday 19th May 2016 - 14:15 to 15:30

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Wed 1 Jun 2016


An overview of the two-phase-flow equations for magma dynamics

   96 views

Rudge, J (University of Cambridge)
Tuesday 16th February 2016 - 09:00 to 10:00

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Fri 19 Feb 2016


Application to McKenzie model (1)

   41 views

Simpson, G (Drexel University)
Wednesday 13th April 2016 - 11:30 to 12:30

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Fri 15 Apr 2016


Application to McKenzie model (2)

   24 views

Simpson, G (Drexel University)
Wednesday 13th April 2016 - 13:30 to 14:30

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Tue 19 Apr 2016


Building a community model for robustness and extensibility

   31 views

Brown, J (University of Colorado, Argonne National Laboratory)
Thursday 3rd March 2016 - 14:30 to 15:30

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Thu 10 Mar 2016


Compaction-driven fluid flow during metamorphism: its impacts on CO2 transfer, thermal advection and its competition...

   47 views

Tian, M (Yale University, University of Oxford)
Thursday 17th March 2016 - 15:30 to 16:30

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Fri 1 Apr 2016


Computational Considerations for Magma Dynamics Simulation

   48 views

Knepley, M (Rice University)
Friday 19th February 2016 - 14:30 to 15:30

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Mon 22 Feb 2016


Computational models of melt transport from source to surface

   50 views

Keller, T (University of Oxford)
Tuesday 7th June 2016 - 11:30 to 12:30

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Tue 14 Jun 2016


Constitutive mechanical relations of a partially molten rock in terms of grain boundary contiguity: an approach with an...

   40 views

Takei, Y (University of Tokyo)
Tuesday 12th April 2016 - 11:30 to 12:30

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Thu 14 Apr 2016


Cross Scale Modeling of Melt Migration

   32 views

Hier-Majumder, S (Royal Holloway, University of London)
Tuesday 12th April 2016 - 14:30 to 15:30

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Thu 14 Apr 2016


Discretizations and multigrid solver for problems related to fluid flow

   140 views

Grove, R (Clemson University)
Thursday 26th May 2016 - 14:15 to 15:30

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Fri 17 Jun 2016


Effect of partial melting on seismic velocity and attenuation: Polycrystal anelasticity at near-solidus temperatures

   39 views

Takei, Y (University of Tokyo)
Wednesday 8th June 2016 - 11:30 to 12:30

Collection: Melt in the Mantle

Institution: Isaac Newton Institute for Mathematical Sciences

Created: Tue 14 Jun 2016


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