Results 1 to 10 of about 76,410 (310)

Dynamic Recrystallization of Olivine During Simple Shear: Evolution of Microstructure and Crystallographic Preferred Orientation From Full‐Field Numerical Simulations [PDF]

open access: diamondGeochemistry, Geophysics, Geosystems
Upper mantle deformation is mainly controlled by the mechanical behavior of olivine. Crystallographic preferred orientations (CPOs) develop in olivine due to crystal‐plastic deformation during mantle flow, where the a‐axes of olivine polycrystalline ...
Y. Yu   +7 more
doaj   +2 more sources

Nitrogen Diffusion in Calcite

open access: yesGeophysical Monograph Series, Page 97-104., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Daniele Cherniak   +2 more
wiley  

+9 more sources

Olivines

open access: hybrid, 2021
D. H. M. Alderton
openaire   +2 more sources

Intracrystalline melt migration in deformed olivine revealed by trace element compositions and polyphase solid inclusions [PDF]

open access: yesEuropean Journal of Mineralogy, 2021
Melt transport mechanisms have an important impact on the chemical composition of the percolated host rock and the migrating melts. Melt migration is usually assumed to occur at grain boundaries.
V. Basch   +8 more
doaj   +1 more source

Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elements

open access: yesЗаписки Горного института, 2022
The paper discusses the geochemistry of major (EPMA) and trace (SIMS) elements in olivine of porphyritic, nonporphyritic chondrules, and the matrix of equilibrated ordinary chondrite Saratov (L4).
Kristina G. Sukhanova   +2 more
doaj   +1 more source

Defects in olivine [PDF]

open access: yesEuropean Journal of Mineralogy, 2021
Olivine, a ferromagnesian orthosilicate, is the most abundant mineral in Earth's upper mantle and is stable down to the olivine–wadsleyite phase transition, which defines the 410 km depth mantle transition zone.
S. Demouchy
doaj   +1 more source

Experimental Research on Electrical Conductivity of the Olivine-Ilmenite System at High Temperatures and High Pressures

open access: yesFrontiers in Earth Science, 2022
Ilmenite is a common metallic oxide distributed in the mafic rocks from the Earth’s upper mantle, and thus the effect of ilmenite contents on the electrical structures of the Earth’s upper mantle should be investigated in detail.
Wenqing Sun   +8 more
doaj   +1 more source

Crystallization Kinetics of Basalt Glass-Ceramics Produced from Olivine Basalt Rock

open access: yesCrystals, 2022
Glass-ceramics acquired from the melting of rocks have a vast application marketplace. In this study, an olivine basalt rock from Zhangjiakou in China was selected as a raw material to prepare basalt glass-ceramics, and the crystallization kinetics of ...
Yonglin Huo   +4 more
doaj   +1 more source

Sintering Behaviour of Waste Olivine and Olivine/Alumina Blends [PDF]

open access: yesMaterials, 2014
The sintering behaviour of several green compacts made with olivine or olivine/alumina powder blends has been examined. To this goal, powders were attrition milled, uniaxially pressed into specimens and air sintered at temperatures ranging from 1100 to 1300 °C.
FURLANI, Erika   +2 more
openaire   +3 more sources

Evidence of Rapid Phenocryst Growth of Olivine During Ascent in Basalts From the Big Pine Volcanic Field: Application of Olivine‐Melt Thermometry and Hygrometry at the Liquidus

open access: yesGeochemistry, Geophysics, Geosystems, 2020
The Quaternary Big Pine (BP) volcanic field in eastern California is notable for the occurrence of mantle xenoliths in several flows. This points to rapid ascent of basalt through the crust and precludes prolonged storage in a crustal reservoir.
Sarah K. Brehm, Rebecca A. Lange
doaj   +1 more source

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