Results 101 to 110 of about 22,070 (265)
The Role of Volatiles in Reactive Melt Transport in the Asthenosphere [PDF]
, 2015 Experimental studies of mantle petrology find that small concentrations of water and carbon dioxide have a large effect on the solidus temperature and distribution of melting in the upper mantle.
T. Keller, R. Katz
semanticscholar +1 more source
, 1995 This guide is designed to be used by teachers as an aid for teaching principles of fossils and past life to elementary school students. The activities and labs provided include topics such as fossilization, sedimentation, trace fossils, the importance of
core +2 more sources
Balancing Earth's Deep Carbon Cycle
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.Abstract The deep carbon cycle of the Earth remains poorly understood in spite of its importance to the evolution of our planet. Here we consider estimated carbon fluxes for plume‐related volcanism from the lower mantle as an independent constraint on the deep carbon cycle, avoiding uncertainties regarding high pressure mineralogy.
Sogen Kitamura +3 more
wiley +1 more source
Postseismic rebound due to creep of the lower lithosphere and asthenosphere [PDF]
Postseismic surface deformations are attributed to the inelastic flow of the subcrustal regions of the Earth following an earthquake. A multilayer representation of the Earth's rheological properties is used in conjunction with a finite element ...
Cohen, S. C.
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.Abstract Natural hydrogen gas (H2) generated through the serpentinization of mantle rocks is a possible source of clean energy. For efficient serpentinization and large‐scale H2 generation to occur, mantle rocks need to be brought near the surface (exhumed) into a favorable temperature range (the serpentinization window) and in contact with water. Rift‐
Frank Zwaan +6 more
wiley +1 more source
Isostatic Recovery and the Strain Rate Dependent Viscosity of the Earth's Mantle [PDF]
, 1974 This paper is concerned with the interpretation of isostatic recovery data in terms of the flow properties of the earth's mantle. A hydrodynamic analysis is first presented that allows straightforward calculation of the relaxation time for isostatic ...
Brennen, Christopher
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Are Estimates of Lower Continental Crust Bulk Composition Biased Due to Seismic Anisotropy?
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.Abstract Most seismic inferences on the bulk composition of the lower continental crust are based on P‐wave velocities inferred from seismic wide‐angle data, for which the direction of propagation in the target region is sub‐horizontal. Given the likely presence of anisotropy in many parts of the lower continental crust, these estimates could be biased
Zheng Luo +3 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, 2020 Long‐period magnetotelluric (MT) data can be used to interpret upper mantle temperature, hydrogen content, and the presence of partial melt, all of which strongly influence mantle viscosity. We have collected the first long‐period MT data in Svalbard and
Kate Selway +7 more
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.Abstract The Iceland Plume, a hot upwelling from the Earth's deep mantle, is thought to have caused high mantle temperatures beneath Iceland and its surroundings resulting in voluminous volcanism, from the North Atlantic Igneous Province at 60 Ma to the present.
Thomas A. J. Merry +5 more
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Geophysical Research LettersThe asthenosphere is commonly defined as an upper mantle zone with low velocities and high attenuation of seismic waves, and high electrical conductivity. These observations are usually explained by the presence of partial melt, or by a sharp contrast in
V. Patočka, H. Čížková, J. Pokorný
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