Results 91 to 100 of about 3,317 (237)
Coupling thermodynamic mineralogical models and mantle convection [PDF]
, 2007 In this thesis I advance the integration of mineral thermodynamics into convection modeling. I have compiled a thermodynamic model of mantle mineralogy in the five component CFMAS system (CaO-FeO-MgO-Al2O3-SiO2), including mineral phases that occur close
Piazzoni, Antonio Sebastiano
core
Low-velocity anomaly in the Coral Sea associated with subducting slabs and the Woodlark rift
Communications Earth & EnvironmentClassical plume models offer insights into intraplate volcanism and seamount chain formation by assuming a cylindrical upwelling of hot materials from the core-mantle boundary.
Ji-hoon Park, Sung-Joon Chang
doaj +1 more source
, 2015 We quantified the fixity of mantle plumes relative to the mantle in high Rayleigh number numerical thermal convection with radially- and temperature-dependent viscosity structures in a 3D spherical shell geometry.
Brown, Luke Douglas
core +1 more source
Long‐Lived Source Heterogeneities in the Galapagos Mantle Plume
Geochemistry, Geophysics, Geosystems, 2018 Mantle plume‐derived melts provide a unique glimpse into the chemical heterogeneity of the deep mantle. However, the exact processes involved in forming and sampling lower mantle heterogeneities remain unresolved and thus, require further investigation ...
Esteban Gazel +6 more
doaj +1 more source
Variations in Hawaiian Plume Flux Controlled by Ancient Mantle Depletion
AGU AdvancesMantle plumes—upwellings of buoyant rock in Earth's mantle—feed hotspot volcanoes such as Hawai‘i. The size of volcanoes along the Hawai‘i–Emperor chain, and thus the magma flux of the Hawaiian plume, has varied over the past 85 million years.
Paul Béguelin +5 more
doaj +1 more source
Earth and Planetary PhysicsA wide northeast-trending belt of intraplate alkaline volcanism, exhibiting similar geochemical characteristics, stretches from the Eastern Atlantic Ocean to the Cenozoic rift system in Europe.
Chiara Civiero, Angelo De Min
doaj +1 more source
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018 There is an opinion that Paleoproterozoic magmatism in the Karelian craton of the Baltic Shield is linked solely with the influence of mantle plumes.
Наталья Ивановна Кондрашова +1 more
doaj +1 more source
Tertiary-Quaternary intra-plate magmatism in Europe and its relationship to mantle dynamics
, 2006 Anorogenic intra-plate magmatism was widespread in Europe from early Tertiary to Recent times, extending west to east from Spain to Bulgaria, and south to north from Sicily to northern Germany. Magmatism is spatially and temporally associated with Alpine-
Wilson, M., Downes, Hilary
core
Geophysical Research LettersSeismic anisotropy, observed in the lowermost mantle near Large Low‐Shear‐Velocity Provinces (LLSVPs), is likely caused by strong deformation from mantle flow interacting with these regions and/or plume formation.
Poulami Roy +3 more
doaj +1 more source
Seismic visualization of plumes and super-deep fluids in mantle under Ukraine
Геофизический журнал, 2017 According to the Taylor approximation of the three-dimensional P-velocity model of the mantle under Eurasia, a seismic visualization of the manifestation of mantle plumes and super-deep fluid processes was carried out.
T. A. Tsvetkova +2 more
doaj +1 more source