Results 41 to 50 of about 41,648 (236)
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
Age, Depth, and Residual Depth Anomalies in the North Pacific: Implications for Thermal Models of the Lithosphere and Upper Mantle [PDF]
, 1986 We present an empirical basement depth versus age relation for the North Pacific Ocean, based on the statistical treatment of an ocean-wide gridded data set.
Renkin, Miriam K., Sclater, John G.
core +1 more source
Convergent flow in a two-layer system and mountain building [PDF]
, 2010 With the purpose of modelling the process of mountain building, we investigate the evolution of the ridge produced by the convergent motion of a system consisting of two layers of liquids that differ in density and viscosity to simulate the crust and the
Gratton, Julio, Perazzo, Carlos Alberto
core +4 more sources
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
Geophysical characterisation of the ocean–continent transition at magma-poor rifted margins [PDF]
, 2009 Geophysical characterisation of the ocean-continent transition (OCT) at magma-poor riftedmargins has focused primarily on the determination of P wave velocities using wide-angleseismic techniques. Such experiments have shown that the OCT is heterogeneous,
Minshull, Timothy A.
core +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
Subcontinental lithospheric mantle beneath Central Europe [PDF]
International Journal of Earth Sciences, 2014 Mantle xenoliths in Oligocene-Miocene alka- line lavas in Lower Silesia (SW Poland) and adjacent part of Upper Lusatia (SE Germany) are samples of the subcon- tinental lithospheric mantle at the time of culmination of rifting in the Eger Rift (Bohemian Massif, Central Europe).
Puziewicz, Jacek +4 more
openaire +2 more sources
Lithospheric heating by mantle plumes [PDF]
Geophysical Journal International, 1987 Summary. A broad topographic swell is associated with the Hawaiian hotspot. A kinematic model is developed assuming that downstream of the hotspot this swell is produced by lithospheric heating by a mantle plume. Material from the model plume flows radially in the asthenosphere and eventually heats the lower lithosphere.
openaire +1 more source
Tertiary-Quaternary subduction processes and related magmatism in the Alpine-Mediterranean region [PDF]
, 2006 During Tertiary to Quaternary times, convergence between Eurasia and Africa resulted in a variety of collisional orogens and different styles of subduction in the Alpine-Mediterranean region.
Downes, Hilary +2 more
core +1 more source
Natural evidence for garnet-spinel transition (GST) in the Earth's mantle [PDF]
, 2008 This study based on compiled world-wide garnet peridotite data confirms the GST in high P and T conditions, which was obtained from Al-free experimental system (MgO-Cr~2~O~3~-SiO~2~) by Klemme (2004). A new spinel-phase peridotite zone, garnet peridotite
BenXun Su
core +3 more sources