Results 21 to 30 of about 96,005 (268)
Geochemistry, Geophysics, Geosystems, 2023 Ultralow velocity zones (ULVZs) and seismic anisotropy are both commonly detected in the lowermost mantle at the edges of the two antipodal large low velocity provinces (LLVPs).
Jonathan Wolf, Maureen D. Long
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Response of the mantle to flat slab evolution: Insights from local splitting beneath Peru [PDF]
, 2014 The dynamics of flat subduction, particularly the interaction between a flat slab and the overriding plate, are poorly understood. Here we study the (seismically) anisotropic properties and deformational regime of the mantle directly above the Peruvian ...
Barazangi +52 more
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Sr-Nd-Pb-Hf isotope results from ODP Leg 187: Evidence for mantle dynamics of the Australian-Antarctic Discordance and origin of the Indian MORB source [PDF]
, 2002 New high precision PIMMS Hf and Pb isotope data for 14–28 Ma basalts recovered during ODP Leg 187 are compared with zero-age dredge samples from the Australian-Antarctic Discordance (AAD).
Alvarez +77 more
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Theoretical Mantle Dynamics [PDF]
, 2018 Geodynamics is the study of the deformation and flow of the solid Earth and other planetary interiors. Focusing on the Earth's mantle, this book provides a comprehensive, mathematically advanced treatment of the continuum mechanics of mantle processes and the craft of formulating geodynamical models to approximate them.
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Seismotomography of the mantle under the East European platform: mantle velocity boundaries
Геофизический журнал, 2012 Mantle velocity boundaries of EEP have been specified. For the upper mantle and its tranzi-tion zone dynamics of propagation of mantle velocity limits with depth has been presented.
T. A. Tsvetkova, I. V. Bugaenko
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Geochemistry, Geophysics, Geosystems, 2021 The flow of high‐temperature and compositionally enriched material between mantle plumes and nearby spreading centers influences up to 30% of the global mid‐ocean ridge system and represents a significant, but currently unconstrained, flux of volatiles ...
Matthew L. M. Gleeson, Sally A. Gibson
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Mantle plumes and mantle dynamics in the Wilson cycle [PDF]
Geological Society, London, Special Publications, 2018 Abstract This review discusses the thermal evolution of the mantle following large-scale tectonic activities such as continental collision and continental rifting. About 300 myr ago, continental material amalgamated through the large-scale subduction of oceanic seafloor, marking the termination of one or more oceanic basins (e.g.
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Frontiers in Earth Science, 2022 Geochemical and geophysical observations for large-scale structures in the Earth’s interior, particularly horizontal variations of long wavelengths such as degree-1 and degree-2 structures, are reviewed with special attention to the cause of ...
Hikaru Iwamori +2 more
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Eos, Transactions American Geophysical Union, 1985 On November 20 and 21, 1984, the Geophysical Laboratory and the Department of Terrestrial Magnetism of the Carnegie Institution sponsored a workshop on the structure and dynamics of the mantle. The participants represented several academic institutions and a wide range of disciplines within the earth and planetary sciences.
Paul G. Silver +3 more
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Mantle flow through a tear in the Nazca slab inferred from shear wave splitting
Geophysical Research Letters, 2017 A tear in the subducting Nazca slab is located between the end of the Pampean flat slab and normally subducting oceanic lithosphere. Tomographic studies suggest mantle material flows through this opening.
Colton Lynner +4 more
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