Results 91 to 100 of about 115,962 (208)

Lithospheric stability and recycling linked to ancient metasomatic processes

Communications Earth & Environment
The melt-assisted destruction of thick continental lithosphere is a thermodynamically intensive process that requires a chemically altered lithosphere.
Shelby Bowden, Tanya Furman, Mansour Salem Alhumimidi, Emma Stolinas   +3 more
doaj   +1 more source

The energetics of melting fertile heterogeneities within the depleted mantle [PDF]

To explore the consequences of mantle heterogeneity for primary melt production, we develop a mathematical model of energy conservation for an upwelling, melting body of recycled oceanic crust embedded in the depleted upper mantle.
Katz, R. F., Rudge, John F.
core   +1 more source

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   +1 more source

Large-scale adaptive mantle convection simulation [PDF]

A new generation, parallel adaptive-mesh mantle convection code, Rhea, is described and benchmarked. Rhea targets large-scale mantle convection simulations on parallel computers, and thus has been developed with a strong focus on computational efficiency
Wilcox, Lucas C., Gurnis, Michael, Ghattas, Omar, Burstedde, Carsten, Tan, Eh, Alisic, Laura, Stadler, Georg   +6 more
core   +1 more source

Water in Earth's mantle : Metasomatism and melting

This thesis investigates the role of water in generating some geochemical and geophysical features in the upper mantle that are thought to be related to melting and metasomatism. Dehydration melting of amphibole has been proposed as a possible mechanism causing the lithosphere-asthenosphere boundary.
openaire   +3 more sources

Mélange dehydration and melting beneath South Sandwich Islands arc

Nature Communications
Mechanisms regulating material transfer from subducted slabs to arc magmas remain debated, centered on metasomatized mantle wedge interactions versus mélange mobilization at the slab-mantle interface.
Yunchao Shu, Sune G. Nielsen, Veronique Le Roux, Danielle Santiago Ramos, Jerzy Blusztajn, Maureen Auro, Phil T. Leat, Tristan J. Horner   +7 more
doaj   +1 more source

Mantle Metasomatism and Alkaline Magmatism [PDF]

, 1987
openaire   +1 more source

Diamondiferous garnet lherzolite from the V.Grib kimberlite pipe: relationship between subduction, mantle metasomatism and diamond formation

Записки Горного института
The article presents the results of a comprehensive study of diamondiferous lherzolite from the V.Grib kimberlite pipe. The composition of rock-forming minerals (olivine, orthopyroxene, Cr-diopside, Cr-pyrope) in terms of major elements mainly ...
Elena V. Agasheva, Nikolai V. Gubanov, Dmitrii A. Zedgenizov   +2 more
doaj  

A global mantle xenolith bulk-rock and paired-mineral dataset. [PDF]

Sci Data
Qin B, Sun T, Li L, Zou D.
europepmc   +1 more source

Crust‒mantle interaction and fluid evolution in the Arabian‒Nubian Shield: evidence from Abu Aqarib A-type granites, Eastern Desert of Egypt. [PDF]

Sci Rep
El-Shafei SA, Azer MK, Abdel-Karim AM, Elwan WI.   +3 more
europepmc   +1 more source