Results 51 to 60 of about 21,832 (251)
The lithosphere-asthenosphere: Italy and surroundings
Episodes, 2003 Abstract The velocity-depth distribution of the lithosphere-asthenosphere in the Italian region and surroundings is imaged, with a lateral resolution of about 100 km, by surface wave velocity tomography and non-linear inversion. Maps of the Moho depth, of the thickness of the lithosphere and of the shear-wave velocities, down to depths of 200 km and ...
PANZA, GIULIANO +4 more
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The petrological control on the lithosphere-asthenosphere boundary (LAB) beneath ocean basins
Earth-Science Reviews, 2018 The plate tectonics theory established ~ 50 years ago has formed a solid framework for understanding how the earth works on all scales. In this theory, movement of the tectonic plates relative to the subjacent asthenosphere is one of the fundamental ...
Y. Niu, D. Green
semanticscholar +1 more source
Geochemistry, Geophysics, GeosystemsSubduction zones are fundamental features of Earth's mantle convection and plate tectonics, but mantle flow and pressure around slabs are poorly understood because of the lack of direct observational constraints on subsurface flow.
Samuel L. Goldberg, Adam F. Holt
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Application of a Premelting Model to the Lithosphere‐Asthenosphere Boundary
Geochemistry, Geophysics, Geosystems, 2020 A seismic discontinuity known as the G‐discontinuity, which has been prevailingly detected in the oceanic mantle, is considered to provide evidence of a sharp lithosphere‐asthenosphere boundary (LAB). We investigate whether this sharp LAB is explained by
Hatsuki Yamauchi, Yasuko Takei
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Lithosphere, asthenosphere, and perisphere [PDF]
Reviews of Geophysics, 1995 “Lithosphere” is a mechanical concept implying strength and relative permanence. Unfortunately, the term has also been applied to the surface thermal boundary layer (TBL) and a shallow enriched geochemical reservoir, features having nothing to do with strength. The “strong” lithosphere is about one half the thickness of the TBL.
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Physics of the Earth and Planetary Interiors, 2019 The solid Earth system is characterized by plate tectonics, a low viscosity zone beneath plates (the asthenosphere), and long wavelength flow in the convecting mantle.
A. Lenardic +3 more
semanticscholar +1 more source
Геодинамика и тектонофизика, 2015 The lower part of lithosphere in collisional orogens may delaminate due to density inversion between the asthenosphere and the cold thickened lithospheric mantle. Generally, standard delamination models have neglected density changes within the crust and
A. I. Kiselev +2 more
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Eos, Transactions American Geophysical Union, 1986 An International Workshop on Anisotrophy and Inhomogeneity of the Lithosphere and Asthenosphere will be held on september 8–13, 1986, at the Castle of Bechyne, Czechoslovakia.
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INDICATION OF META-ANTHRACITE BY MAGNETOTELLURICS IN THE KŐSZEG-RECHNITZ PENNINIC WINDOW : A TEST AREA [PDF]
, 2013 One of the Penninic Nappes is the Kőszeg-Rechnitz (K-R) tectonic window at the Eastern end of the Eastern Alps. It has a complicated metamorphic history from the Jurassic time.
A Ádám +15 more
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Geochemistry Geophysics Geosystems, 2018 A weak asthenosphere, or low‐viscosity zone (LVZ), underlying Earth's lithosphere has played an important role in interpreting isostasy, postglacial rebound (PGR), and the seismic LVZ, as well as proposed mechanisms for continental drift, plate tectonics,
M. Richards, A. Lenardic
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