Results 31 to 40 of about 196,173 (215)
CO2 degassing and melting of metasomatized mantle lithosphere during rifting – Numerical study
Geoscience Frontiers, 2019 Reactivation of metasomatized mantle lithosphere may occur during continental extension, which is an important component of plate tectonics. The lower most part of the metasomatized domains in the subcontinental mantle lithosphere can be locally enriched
W. Gorczyk, C. Gonzalez
semanticscholar +1 more source
AGU Advances, 2023 Mid‐lithosphere discontinuities are seismic interfaces likely located within the lithospheric mantle of stable cratons, which typically represent velocities decreasing with depth.
Tianze Liu, Emily J. Chin, Peter Shearer
doaj +1 more source
Geochemistry, Geophysics, Geosystems, 2020 The observed variations in the thickness of the conductive lithosphere, derived from surface wave studies, have a first‐order control on the elevation of the continents, in addition to variations in the thickness of the crust—this defines whole ...
Simon Lamb +3 more
doaj +1 more source
Nature of orogenesis and volcanism in the Caucasus region based on results of regional tomography [PDF]
Solid Earth, 2012 In the paper, we discuss the problem of continental collision and related volcanism in the Caucasus and surrounding areas based on the analysis of the upper mantle seismic structure in a recently derived model by Koulakov (2011).
I. Koulakov +3 more
doaj +1 more source
Making Cratonic Lithospheric Mantle [PDF]
Journal of Geophysical Research: Solid Earth, 2018 AbstractThe origin of cratonic lithospheric mantle has been attributed to either high‐pressure (5–7 GPa) melting in hot mantle plumes or low‐pressure (<5 GPa) melting in mid‐ocean ridges or suprasubduction zones. To resolve this long‐standing debate, it is necessary to confirm under what depths the incipient cratonic mantle melted.
Bin Su, Yi Chen
openaire +1 more source
A numerical model for the gravimetric recovery of sub-lithospheric mantle structures
Geodesy and Geodynamics, 2020 It is a well-known fact that the long-wavelength terrestrial geoid undulations are mainly attributed to deep mantle density heterogeneities, while more detailed features in the geoid geometry are associated with the topography and the lithospheric ...
Robert Tenzer
doaj +1 more source
The subduction dichotomy of strong plates and weak slabs [PDF]
Solid Earth, 2017 A key element of plate tectonics on Earth is that the lithosphere is subducting into the mantle. Subduction results from forces that bend and pull the lithosphere into the interior of the Earth.
R. I. Petersen +2 more
doaj +1 more source
The Role of Lower Crustal Rheology in Lithospheric Delamination During Orogeny
Frontiers in Earth Science, 2021 The continental lower crust is an important composition- and strength-jump layer in the lithosphere. Laboratory studies show its strength varies greatly due to a wide variety of composition. How the lower crust rheology influences the collisional orogeny
Lin Chen
doaj +1 more source
Do Olivine Crystallization Temperatures Faithfully Record Mantle Temperature Variability?
Geochemistry, Geophysics, Geosystems, 2021 Crystallization temperatures of primitive olivine crystals have been widely used as both a proxy for, or an intermediate step in calculating, mantle temperatures. The olivine‐spinel aluminum‐exchange thermometer has been applied to samples from mid‐ocean
Simon Matthews +4 more
doaj +1 more source
BSGF - Earth Sciences Bulletin, 2021 The architecture and tectono-magmatic evolution of the lithosphere of Europe are the result of a succession of subduction, rifting and inputs from plumes that have modified the lithospheric mantle since the Neoproterozoic (750–500 Ma).
Mouthereau Frédéric +13 more
doaj +1 more source