Results 51 to 60 of about 293,215 (210)
Partial Melting of Lower Oceanic Crust Gabbro: Constraints From Poikilitic Clinopyroxene Primocrysts
Frontiers in Earth Science, 2018 Successive magma batches underplate, ascend, stall and erupt along spreading ridges, building the oceanic crust. It is therefore important to understand the processes and conditions under which magma differentiates at mid ocean ridges.
Julien Leuthold +6 more
doaj +1 more source
Isolated Crustal Partial Melting in the Southern Tibetan Plateau From H‐κ‐c Method
Geophysical Research Letters, 2023 The crustal thickness and average Vp/Vs ratio are basic parameters to understand the current state and the tectonic processes in the Tibetan Plateau (TP).
Junyi Gong, Jiangtao Li, Mengkui Li
doaj +1 more source
Frontiers in Earth ScienceUnderstanding the origin, assembly, and evolution of voluminous magma that erupts in catastrophic caldera-forming eruptions (CCFEs) is a community imperative. A CCFE of the Aira caldera at 30 ka discharged over 350 km3 of magma, which can be grouped into
Ayumu Nishihara +11 more
doaj +1 more source
Tertiary-Quaternary intra-plate magmatism in Europe and its relationship to mantle dynamics [PDF]
, 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-
Downes, Hilary, Wilson, M.
core +1 more source
"Early partial melting" in annealed natural cordierites
European Journal of Mineralogy, 2002 Natural cordierite crystals with a range of Mg:Fe ratios have been annealed at a range of temperatures between 1200 and 1430°C (under controlled f o2 ), after previously being annealed at 900 °C to drive off any volatiles contained within their channels. Complex microstructures were observed in these samples by transmission electron microscopy.
Capitani, G +3 more
openaire +2 more sources
Carboniferous and Permian magmatism in Scotland [PDF]
, 2004 Extensional tectonics to the north of the Variscan Front during the Early Carboniferous generated fault-controlled basins across the British Isles, with accompanying basaltic magmatism.
Fitton, J.G. +4 more
core +1 more source
Melt redistribution during the bending of a porous, partially melted layer
Geophysical Research Letters, 2003 A numerical, poro‐viscoelastic finite element flow model has been developed to simulate the redistribution of melt during the folding of a horizontal layer. Important mechanical properties governing the overall rheology of the buckling layer, including porosity, matrix viscosity, melt pressure and changes in deviatoric stress are tracked simultaneously
A. G. Simakin, Nick Petford
openaire +2 more sources
Temperature Distribution of Particles in a Laser Beam
Iranian Journal of Materials Science and Engineering, 2018 This article studies the particle temperature distribution depending on the laser radiation power and the particle’s trajectory and velocity. The uneven heating of particles moving in the laser radiation field is identified.
V. Lykhoshva +4 more
doaj
Frontiers in Earth Science, 2022 We report abundances of major trace and volatile elements in an orthopyroxenite vein cutting a sub-arc, mantle-derived, spinel harzburgite xenolith from Kamchatka.
A. Bénard +6 more
doaj +1 more source
Geochemistry, Geophysics, Geosystems, 2021 The Mado Megamullion is an oceanic core complex (OCC) in the Shikoku back‐arc basin within the Philippine Sea Plate. Mantle peridotites (serpentinized) recovered by six dredge and submersible cruises exhibit signatures of extensive deformation. Amorphous
A. Sen +10 more
doaj +1 more source