Results 161 to 170 of about 43,392 (192)

Banded Olivines in some Scottish Carboniferous Olivine-Basalts

Geological Magazine, 1957
AbstractLarge, individual olivine crystals exhibiting a banded structure are described from olivine-basalts from a number of localities in the Carboniferous lavas of the Midland Valley. This structure is of deformational nature and provides what seems to be a sound criterion for distinguishing between phenocrystic and xenocrystic olivine in olivine ...
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Wearing down olivine

Nature Reviews Earth & Environment, 2020
An article in Chemical Geology reports the use of magnesium and lithium isotopes to track olivine weathering in soils.
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Li Conductivity in Li x MPO 4 ( M = Mn , Fe , Co , Ni ) Olivine Materials

, 2004
Materials with the olivine structure form an important class of rechargeable battery cathodes. Using first-principles methods, activation barriers to Li ion motion are calculated and an estimate for Li diffusion constants, in the absence of electrical ...
D. Morgan, Anton Van der Ven, G. Ceder
semanticscholar   +1 more source

Enhanced olivine carbonation within a basalt as compared to single-phase experiments: reevaluating the potential of CO2 mineral sequestration.

Environmental Science and Technology, 2014
Batch experiments were conducted in water at 150 °C and PCO2 = 280 bar on a Mg-rich tholeiitic basalt (9.3 wt % MgO and 12.2 wt % CaO) composed of olivine, Ti-magnetite, plagioclase, and clinopyroxene.
O. Sissmann, F. Brunet, I. Martinez, F. Guyot, A. Verlaguet, Y. Pinquier, D. Daval   +6 more
semanticscholar   +1 more source

The mechanisms of creep in olivine

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1978
We summarize the progress made in providing experimental verification for the deformation map of polycrystalline olivine published by Stocker & Ashby in 1973 ( Rev. Geophys . 11, 391). Porosity-free polycrystalline deformation data, applicable to the mantle, were found to be obtainable only from high-pressure ...
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Origin of olivine at Copernicus

Journal of Geophysical Research: Solid Earth, 1985
The central peaks of Copernicus are among the few lunar areas where near‐infrared telescopic reflectance spectra indicate extensive exposures of olivine. Other parts of Copernicus crater and ejecta, which were derived from highland units in the upper parts Of the target site, contain only low‐Ca pyroxene as a mafic mineral.
Don E. Wilhelms, Carle M. Pieters
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Who will drive electric vehicles, olivine or spinel?

, 2011
Lithium iron phosphate olivine (LFP) and lithium manganese oxide spinel (LMO) are competitive and complementary to each other as cathode materials for lithium ion batteries, especially for use in hybrid electric vehicles and electric vehicles.
Ok-Kyung Park, Yonghyun Cho, Sanghan Lee, HoChun Yoo, Hyun‐Kon Song, Jaephil Cho   +5 more
semanticscholar   +1 more source

Water-Induced Fabric Transitions in Olivine

Science, 2001
The interpretation of seismic anisotropy in Earth's upper mantle has traditionally been based on the fabrics (lattice-preferred orientation) of relatively water-poor olivine.
H. Jung, S. Karato
semanticscholar   +1 more source

Olivine composition in chondrites

Geochimica et Cosmochimica Acta, 1963
Abstract Olivine is almost omnipresent in chondrites, being absent only in the enstatite chondrites and a few carbonaceous chondrites. In most chondrites it is the dominant mineral. Since it shows a considerable range of composition, which is directly related to the FeO MgO ratio in the individual meteorite, and since its composition is ...
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Na-ion mobility in layered Na2FePO4F and olivine Na[Fe,Mn]PO4

, 2013
The Na-ion battery is currently the focus of much research interest due to its cost advantages and the relative abundance of sodium as compared to lithium.
R. Tripathi, S. Wood, M. Islam, L. Nazar
semanticscholar   +1 more source