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- Olivine - an overview | ScienceDirect Topics
Introduction Olivine is an important rock-forming mineral and is common in mafic igneous rocks such as peridotite, gabbro, and basalt, along with pyroxene and plagioclase The ultramafic rock dunite consists almost entirely of olivine, and is the result of the fractional crystallization of peridotite-composition melts to form cumulate olivine
- Olivine formation processes and fluid pathways in subducted . . .
These data are used to distinguish in-situ olivine and fluid production during the antigorite+brucite reaction from fluid migration and olivine crystallization during reactive fluid flow
- Feasibility of increasing marine carbon storage through olivine . . .
As a result of the increasing consumption of fossil fuels all over the world, the ongoing global warming caused by rising atmospheric carbon dioxide (…
- Minor and trace elements in olivines as probes into early igneous and . . .
Trace elements in olivine characterize phenocrysts and mantle olivines Trace elements distinguish recycling of ocean and continental crust Mantle metasomatism by silicate and carbonatite melts fingerprinted and distinguished Li traces continental crust involvement in the source Potential to identify several different types of olivine-free rock assemblages
- Olivine chemistry reveals compositional source heterogeneities within a . . .
However, a signal of a more pyroxenitic mantle lithology is clearly visible in olivine from the South Iceland Volcanic Zone, which represents the southward propagation of the Eastern Rift Zone, while olivine from Tertiary lavas suggests a mixed peridotite-pyroxenite source composition
- Olivine-catalyzed glycolaldehyde and sugar synthesis under aqueous . . .
Olivine-catalyzed sugar formation in a hydrothermally altered formaldehyde solution Two-dimensional gas chromatogram of the sugar products after 2 days of hydrothermal alteration of formaldehyde in the presence of olivine (FO2)
- Olivine dissolution rates: A critical review - ScienceDirect
A survey of the literature suggests that the major factors influencing forsteritic olivine dissolution rates are 1) pH, 2) water activity, 3) temperature, and 4) mineral-fluid interfacial surface area Evidence suggests that the effects of aqueous inorganic and organic species are relatively limited, and may be attributed at least in part to their influence on aqueous solution pH Moreover
- A comprehensive study on the leaching characteristics and mechanisms of . . .
Olivine is a silicate mineral primarily composed of magnesium and iron with the chemical formula of (Mg,Fe) 2 SiO 4 This mineral is typically found in mafic and ultramafic magmatic rocks that are formed deep in the upper mantle (Smyth et al , 2006) The unique structure of olivine comprises a dense hexagonal sphere of oxygen atoms, with smaller tetrahedral gaps containing silicon and
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