Results 1 to 10 of about 70,048 (187)
European 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 +5 more sources
Intracrystalline melt migration in deformed olivine revealed by trace element compositions and polyphase solid inclusions [PDF]
European 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
Записки 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
Crystallization Kinetics of Basalt Glass-Ceramics Produced from Olivine Basalt Rock
Crystals, 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]
Materials, 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 +4 more sources
Frontiers 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
Olivine, and the Origin of Kimberlite [PDF]
Journal of Petrology, 2010 relatively rare rock in the mantle and where present its olivine is persistently Fo-rich. The dunitic source of the nodules in kimberlites lacked minerals such as pyroxene and an aluminous phase, which make up about half of most mantle-derived rocks. It appears that these minerals were removed from the mantle peridotite that was to become the source of
Arndt, Nicholas +6 more
openaire +4 more sources
Geochemistry, 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