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Filtering by: Subject Earth (Planet) -- Mantle

New Insights into Mantle Dynamics from Helium Isotopes and Argon Geochronology

Creator:

Konrad, Kevin

Abstract:

Earth’s mantle extends to nearly 3000 km depth, comprises >80 % of Earth’s total volume, and has the largest influence on the primordial and radiogenic heat budget. Despite its importance, the structure and composition of the mantle is still debated. There are three primary models for Earth’s mantle structure that...

Resource Type:

Dissertation

Full Text:

waves on a spherical earth: 1. Upper mantle structure from Love waves: Journal of Geophysical Research
An approach to thermal convection problems in geophysics with application to the earth's mantle and ground water systems

Creator:

Lowell, Robert P.

Abstract:

Two thermal convection problems of geophysical interest are examined, theoretically. First, convection in the earth's mantle is treated on the basis of a one-dimensional 'strip model'. This model results from further simplification of the well known 'Rayleigh model'. For homogeneous, Newtonian fluids, the strip model yields results similar to those...

Resource Type:

Dissertation

Full Text:

I. CONVECTION IN THE MANTLE Introduction Solid-earth geophysics has undergone a revolutionary