Results 101 to 110 of about 5,696 (230)
Stratigraphy Preserved on the Jezero Crater Rim Reveals Repeated Impacts on Early Mars
Abstract The outer slopes of the western Jezero crater rim are hypothesized to expose sections of Early‐ to Pre‐Noachian crust uplifted by the Jezero impact, providing an excellent opportunity to investigate the earliest geologic processes active on terrestrial planets.
Alexander J. Jones +27 more
wiley +1 more source
Thermal, Elastic and Seismic Signature of High-Resolution Mantle Circulation Models [PDF]
A long-standing question in the study of Earth’s deep interior is the origin of seismic mantle heterogeneity. The challenge is to efficiently mine the wealth of information available in complex seismic waveforms and to separate the potential ...
Schuberth, Bernhard
core
Numerical and Laboratory Studies of Mantle Convection: Philosophy, Accomplishments, and Thermochemical Structure and Evolution [PDF]
© 2005 by the American Geophysical Union. Since the acceptance of the theory of plate tectonics in the late 1960s, numerical and laboratory studies of mantle convection and plate tectonics have emerged as a powerful tool for understanding how the solid ...
Tackley, Paul J. +3 more
core +1 more source
Secular Variation in the North American Kimberlite Formation: The Variable Connection to LLSVPs
Kimberlites are rare and perplexing igneous rocks that may represent the deepest‐sourced melt type extracted from within the Earth's mantle, and their origin may be associated with Large Low Shear Velocity Provinces (LLSVPs) along the core‐mantle ...
C. Adam, P. D. Kempton
doaj +1 more source
PROBLEMS OF NUMERICAL MODELING OF LARGE-SCALE MANTLE CONVECTION IN THE SUBDUCTION ZONE
The article provides a review of modern models of large-scale mantle convection in the zone of a heavy cold oceanic plate (slab) subduction into the upper mantle.
A. N. Chetyrbotsky
doaj +1 more source
Abstract Numerical modeling has been widely used to assess the feasibility of geothermal energy development at sites across the world, but modeling applications simulating the potential impacts on shallow hydrothermal resources and surface water are relatively scarce. In this study, we apply the MODFLOW 6 groundwater energy (GWE) code to simulate fully
Michael J. Rush +5 more
wiley +1 more source
Unsolved problems in the lowermost mantle [PDF]
Many characteristics of D '' layer may be attributed to the recently discovered MgSiO3 post-perovskite phase without chemical heterogeneities. They include a sharp discontinuity at the top of D '', regional variation in seismic anisotropy, and a steep ...
Brodholt, JP +4 more
core
A numerical study of the dynamics of subduction [PDF]
The mechanics and dynamics of subduction have been studied using 2-D finite element analysis. Two finite element formulations have been employed; one formulation for Newtonian viscous flow and one formulation for linear elasticity and viscoelasticity ...
Whittaker, A.
core
Structure and evolution of the intracratonic Congo Basin [PDF]
Surface wave tomography, heat flow, and crustal thickness measurements have demonstrated that the thickness of the continental lithosphere varies by at least a factor of 2. Since the thermal time constant of the lithosphere depends upon the square of its
Crosby, A. G. +2 more
core +1 more source
Dynamics of Compressible Convection and Thermochemical Mantle Convection [PDF]
The Earth’s long-wavelength geoid anomalies have long been used to constrain the dynamics and viscosity structure of the mantle in an isochemical, whole-mantle convection model.
Liu, Xi
core +3 more sources

