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Olivine in Antarctic micrometeorites: Comparison with other extraterrestrial olivine
Geochimica et Cosmochimica Acta, 1992The compositions of 5-micron or larger Mg-rich olivines from 26 Antarctic micrometeorite particles were examined and compared with those of other extraterrestrial olivine. The following differences were noted between the Antarctic meteorites and the generally recognized meteorite groups: (1) while refractory-rich (e.g., high Al2O3 or CaO) are common in
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Science, 1966
Welding of olivine was demonstrated by grinding it in a ball mill in an atmosphere of about 2 × 10 -7 torr. Most of the sample adhered strongly to the container and grinding balls although adhesion in air is only slight.
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Welding of olivine was demonstrated by grinding it in a ball mill in an atmosphere of about 2 × 10 -7 torr. Most of the sample adhered strongly to the container and grinding balls although adhesion in air is only slight.
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2012
The greenhouse effect, thanks mainly to the water vapor in our atmosphere, has created a livable climate on Earth. Climate change, however, may potentially have dire consequences. It is generally assumed that the rise in CO2 levels in the atmosphere is the main culprit, although several other greenhouse gases (GHG) also play a role.
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The greenhouse effect, thanks mainly to the water vapor in our atmosphere, has created a livable climate on Earth. Climate change, however, may potentially have dire consequences. It is generally assumed that the rise in CO2 levels in the atmosphere is the main culprit, although several other greenhouse gases (GHG) also play a role.
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Olivine-Based Cathode Materials
2015The lithium insertion compounds built with polyanionic groups such as (SO4)2−,(PO4)3−, (P2O7)4−, (MoO4)2− or (WO4)2− are considered as potential positiveelectrode materials for use in lithium rechargeable batteries [1, 2]. Yet in thisfamily, olivine phosphate and Nasicon-like frameworks are currently the subject ofmany investigations.
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Olivine: a monitor of magma evolutionary paths in kimberlites and olivine melilitites
Contributions to Mineralogy and Petrology, 1988Petrographic and chemical criteria indicate that the overwhelming majority of olivines in kimberlites are probably cognate phenocrysts. The implied low volume of xenocryst olivines requires that primitive kimberlite magmas are highly ultrabasic liquids. Two chemically distinctive olivine populations are present in all of the kimberlites studied.
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Olivine recrystallization textures [PDF]
Mineralogical Magazine, 1969 SummaryMosaic olivine textures, with straight triple grain boundaries meeting at angles of 120°, are common in dunites. This is a well-known feature of annealed metals, and is the result of grain-boundary migration during recrystallization in which the system tends toward a state of minimum interfacial energies.
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Banded Olivines in some Scottish Carboniferous Olivine-Basalts
Geological Magazine, 1957AbstractLarge, 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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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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An article in Chemical Geology reports the use of magnesium and lithium isotopes to track olivine weathering in soils.
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Origin of olivine at Copernicus
Journal of Geophysical Research: Solid Earth, 1985The 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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The mechanisms of creep in olivine
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1978We 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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