Geophysics

Following the development of a research concentration in Geochemistry during the 1990s, the University of Maryland, College Park, is now building its strength in Geophysics. This new research group investigates the physical processes and structure of the Earth and planetary interiors. Both computational modeling and experimental methods are used to understand planetary processes at all depths, from near-surface conditions to deep interiors. Research areas include: deformation of planetary lithospheres, including earthquakes and the origin of plate boundaries; evolution and dynamics of geological multiphase aggregates, including compaction of porous media and flow in melt-bearing systems; properties and phase relations of minerals at high pressures and temperatures; and dynamics of metallic cores and generation of planetary magnetic fields.


Research Facilities:

Geodynamics Research Laboratory
Laboratory for Mineral Physics
Laboratory for Rock Physics
Nonlinear Dynamics Laboratory


Graduate Program:

Interested students are encouraged to apply to our graduate program. There are opportunities for graduate study in geophysics for students having a variety of backgrounds, especially those with degrees in the physical sciences, mathematics, computer science, or engineering.


Resident Geophysics Faculty:

Campbell  Andrew Campbell
Mineral physics and solid earth geochemistry, high-pressure phase equilibria and equations of state, and siderophile element cosmochemistry.
        (Laboratory for Mineral Physics

Hier-Majumder  Saswata Hier-Majumder  
Theoretical modeling of multicomponent fluid dynamics in problems of geophysical interest. Segregation and transport of melt in the mantle. Experimental determination of the influence of water on the kinetic properties of silicates.
        (Geodynamics Research Group)

Lathrop  Daniel Lathrop  
Experimental geophysical fluid dynamics, superfluid turbulence, magnetorotational instability, magnetoturbulence and dynamos, and strongly nonlinear surface waves.
        (Nonlinear Dynamics Laboratory

Montesi  Laurent Montési  
Earth and planetary surface deformation (mountain belts, rifting, and the influence of faults; localized deformation on shear zones). Computational models of lithospheres of terrestrial planets.
        (Montési Geodynamics

Zhu  Wen-lu Zhu  
Experimental rock physics; laboratory and theoretical studies on deformation and percolation of crustal rocks; transport properties of hydrothermal vent deposits; submarine geomorphology.  
        (Laboratory for Rock Physics

Adjunct Geophysics Faculty:

Fei  Yingwei Fei (Carnegie Institution of Washington)
Formation and chemical composition of planetary interiors, physical properties of planetary materials at high pressure and temperature, and material synthesis at high pressure. 
        (Geophysical Laboratory Multi-anvil Group)

 

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Diamond anvil cell
Diamond anvil high pressure cell. The sample is compressed between two diamonds, to pressures reaching those of the Earth's core.

Bathymetry
Bathymetry of the ultraslow Southwest Indian Ridge at 9-16˚E. Magma is focused to narrow seamounts like Joseph Mayes Seamount in the foreground.

Olivine grains
Pockets of water-rich melt in an olivine matrix. These experiments demonstrate how melts can be retained in the mantle.

Hertzian fracture
A laser confocal image of Hertzian fracture and grain crushing in porous sandstone. 

Sphere
Laboratory model for probing MHD turbulence and liquid metal flow in Earth's core.