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Theoretical and Observational Studies of the Earth's Mantle.

DE2001766417

Publication Date	2001
Personal Author	Shankland, T. J.
Page Count	20
Abstract	This project concerns the dynamical transport of heat and matter in Earths mantle and core. Mantle convection shapes the surface by building mountains, dispersing and aggregating continents, and guiding the structure and evolution of the environment at Earths surface; on short time scales, it causes earthquakes and volcanic eruptions. Through thermal transport it also affects patterns of heat flux out of the core, which in turn influences convection in Earths fluid outer core. Convection of core fluid maintains the geomagnetic field, which, at the surface, affects navigation and communication and helps to shield Earth from cosmic radiation. We undertake computer-intensive studies of the 3-dimensional dynamics of the mantle and core through both simulations and analyses of observational data. Fluid dynamic model predictions are compared to field and seismic observations. The research exercises LANL hydrodynamic codes and brings their operators into contact with a broader world of computational research. It supports related missions in treaty verification and hazard reduction.
Keywords	Earth mantle Convection(Atmospheric) Transport Heat Fluid flow Seismic waves
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	48F - Geology & Geophysics
Corporate Authors	Los Alamos National Lab., NM.; Department of Energy, Oak Ridge, TN. Office of Scientific and Technical
Supplemental Notes	Sponsored by Department of Energy, Oak Ridge, TN. Office of Scientific and Technical Information.
Document Type	Technical Report
NTIS Issue Number	200120
Contract Number	DE-W-7405-ENG-36

Theoretical and Observational Studies of the Earth's Mantle.

Theoretical and Observational Studies of the Earth's Mantle.
DE2001766417

Publication Date	2001
Personal Author	Shankland, T. J.
Page Count	20
Abstract	This project concerns the dynamical transport of heat and matter in Earths mantle and core. Mantle convection shapes the surface by building mountains, dispersing and aggregating continents, and guiding the structure and evolution of the environment at Earths surface; on short time scales, it causes earthquakes and volcanic eruptions. Through thermal transport it also affects patterns of heat flux out of the core, which in turn influences convection in Earths fluid outer core. Convection of core fluid maintains the geomagnetic field, which, at the surface, affects navigation and communication and helps to shield Earth from cosmic radiation. We undertake computer-intensive studies of the 3-dimensional dynamics of the mantle and core through both simulations and analyses of observational data. Fluid dynamic model predictions are compared to field and seismic observations. The research exercises LANL hydrodynamic codes and brings their operators into contact with a broader world of computational research. It supports related missions in treaty verification and hazard reduction.
Keywords	Earth mantle Convection(Atmospheric) Transport Heat Fluid flow Seismic waves
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	48F - Geology & Geophysics
Corporate Authors	Los Alamos National Lab., NM.; Department of Energy, Oak Ridge, TN. Office of Scientific and Technical
Supplemental Notes	Sponsored by Department of Energy, Oak Ridge, TN. Office of Scientific and Technical Information.
Document Type	Technical Report
NTIS Issue Number	200120
Contract Number	DE-W-7405-ENG-36