Results 121 to 130 of about 22,070 (265)
Thermal and mechanical structure of the upper mantle: A comparison between continental and oceanic models [PDF]
Temperature, velocity, and viscosity profiles for coupled thermal and mechanical models of the upper mantle beneath continental shields and old ocean basins show that under the continents, both tectonic plates and the asthenosphere, are thicker than they
Froidevaux, C. +2 more
core +1 more source
Asthenosphere flow and plate motions [PDF]
Geophysical Journal International, 1978 Summary. A dynamical theory of flow in the asthenosphere is developed by treating it as a thin layer of Newtonian viscous fluid, pushed horizontally by the dense sinking slabs attached to some plates and by the differences in heating under continental and oceanic crust.
openaire +1 more source
Islands, Reefs, and a Hotspot [PDF]
In this lesson students investigate the formation of the Hawaiian archipelago to see what geological processes produced the different physical forms seen among the Hawaiian Islands.
Mel Goodwin
core
Contribution of viscoelastic flow in earthquake cycles within the lithosphere‐asthenosphere system
, 2016 Faults slip relaxes lithospheric stress imposed by mantle flow and in turn transfers stress to the ductile regions. The interplay of these systems governs the style of deformation at plate boundaries including the recurrence of seismic events.
Valère R. Lambert, S. Barbot
semanticscholar +1 more source
Antarctic Record, 1998 Linear deformation laws have been applied to post glacial rebound, while many speculations based on real rock samples support non-linear rheology in the upper mantle. Essential information is required to support the assumed constitutive relation.
Atsuki Kubo
doaj +1 more source
Kerguelen Plume Drives the Eocene Directional Change in Australian Plate Motion [PDF]
LithosphereAustralia undergoes a directional plate motion change from westward to northward motion in the early Cenozoic that is associated with Australia/Antarctica separation.
Ingo L. Stotz +4 more
doaj +1 more source
SO2-rich equatorial basins and epeirogeny of Io [PDF]
Comparison of Io's large scale topography with an SO2 abundance map shows that SO2 is concentrated in equatorial topographic basins. In these basins, about 30 pct. of the surface is covered by SO2 at all elevations above the mean triaxial figure, and SO2
Mcewen, Alfred S.
core +1 more source
What is the lithosphere‐asthenosphere boundary?
Eos, Transactions American Geophysical Union, 2011 EarthScope Institute on the Lithosphere‐Asthenosphere Boundary; Portland, Oregon, 19–21 September 2011 The lithosphere‐asthenosphere boundary (LAB) marks a pronounced transition in the mechanical behavior of the upper mantle, separating the strong lithosphere from the weak asthenosphere beneath it.
Colleen A. Dalton +2 more
openaire +1 more source
Correlation of data on strain accumulation adjacent to the San Andreas Fault with available models [PDF]
Theoretical and numerical studies of deformation on strike slip faults were performed and the results applied to geodetic observations performed in the vicinity of the San Andreas Fault in California.
Turcotte, Donald L.
core +1 more source