Results 61 to 70 of about 5,696 (230)
MANTLE CONVECTION FOR GEOLOGISTS [PDF]
By Geoffrey F. Davies (2011) Cambridge University Press, U.K., 232 p. $64.00 ISBN 978-0-521-19800-4 (Hardback; e-formats available). Since the plate tectonics model was advanced in the 1960s, mantle convection has been recognized to be at the heart of various activities of the solid Earth like volcanism, continental drift, mountain building, and ...
openaire +1 more source
The energetics of melting fertile heterogeneities within the depleted mantle [PDF]
To explore the consequences of mantle heterogeneity for primary melt production, we develop a mathematical model of energy conservation for an upwelling, melting body of recycled oceanic crust embedded in the depleted upper mantle.
Katz, R. F., Rudge, John F.
core +1 more source
A Simple Thermodynamic Model of the Internal Convective Zone of the Earth
As it is well known both atmospheric and mantle convection are very complex phenomena. The dynamical description of these processes is a very difficult task involving complicated 2-D or 3-D mathematical models.
Karen Arango-Reyes +3 more
doaj +1 more source
Stability of (Mg,Fe)SiO3 perovskite and the structure of the lowermost mantle [PDF]
Thermodynamic analysis shows that (Mg,Fe)SiO3 perovskite is stable throughout the likely pressure, temperature and compositional regime of the Earth's mantle.
Bukowinski, MST, Stixrude, L
core
A widely accepted global model of glacial isostatic adjustment (GIA) is based on ICE‐6G ice loading and 1D‐viscosity model VM5a, a viscosity profile which remains at odds with mantle convection constraints such as from geoid modeling.
A. Bellas‐Manley +3 more
doaj +1 more source
On the impact of true polar wander on heat flux patterns at the core–mantle boundary [PDF]
The heat flux across the core–mantle boundary (CMB) is a fundamental variable for Earth evolution and internal dynamics. Seismic tomography provides access to seismic heterogeneities in the lower mantle, which can be related to present-day thermal ...
T. Frasson +4 more
doaj +1 more source
One-dimensional physical reference models for the upper mantle and transition zone: combining seismic and mineral physics constraints [PDF]
One-dimensional seismic reference models are known to be a nonunique solution to global seismic data, hampering an interpretation in terms of physical structure. Here we test the compatibility of the simplest hypothesis of a mantle convecting as a whole,
Giardini, D. +3 more
core +1 more source
Intraplate Seamounts as a Window into Deep Earth Processes [PDF]
Seamounts are windows into the deep Earth that are helping to elucidate various deep Earth processes. For example, thermal and mechanical properties of oceanic lithosphere can be deter-mined from the flexing of oceanic crust caused by the growth of ...
Anthony A.P. Koppers, Anthony B. Watts
doaj
ABSTRACT Groundwater depletion is a major challenge in semiarid, hard‐rock regions where irrigation demands often exceed natural recharge. This study evaluates the effectiveness of farm‐scale recharge pits as a local, supplementary, and community‐managed groundwater recharge solution in the Dharta catchment of Rajasthan, India. Alongside check dams and
Prahlad Soni +4 more
wiley +1 more source
Prandtl-number dependence of convection-driven dynamos in rotating spherical fluid shells [PDF]
The value of the Prandtl number P exerts a strong influence on convection-driven dynamos in rotating spherical shells filled with electrically conducting fluids.
Simitev, R., Busse, F.H.
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