References of "Namur, Olivier"
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See detailSilicate mineralogy at the surface of Mercury
Namur, Olivier ULg; Charlier, Bernard ULg

in Nature Geoscience (2017)

NASA’s MESSENGER spacecraft has revealed geochemical diversity across Mercury’s volcanic crust. Near-infrared to ultraviolet spectra and images have provided evidence for the Fe2+-poor nature of silicate ... [more ▼]

NASA’s MESSENGER spacecraft has revealed geochemical diversity across Mercury’s volcanic crust. Near-infrared to ultraviolet spectra and images have provided evidence for the Fe2+-poor nature of silicate minerals, magnesium sulfide minerals in hollows and a darkening component attributed to graphite, but existing spectral data is insufficient to build a mineralogical map for the planet. Here we investigate the mineralogical variability of silicates in Mercury’s crust using crystallization experiments on magmas with compositions and under reducing conditions expected for Mercury. We find a common crystallization sequence consisting of olivine, plagioclase, pyroxenes and tridymite for all magmas tested. Depending on the cooling rate, we suggest that lavas on Mercury are either fully crystallized or made of a glassy matrix with phenocrysts. Combining the experimental results with geochemical mapping, we can identify several mineralogical provinces: the Northern Volcanic Plains and Smooth Plains, dominated by plagioclase, the High-Mg province, strongly dominated by forsterite, and the Intermediate Plains, comprised of forsterite, plagioclase and enstatite. This implies a temporal evolution of the mineralogy from the oldest lavas, dominated by mafic minerals, to the youngest lavas, dominated by plagioclase, consistent with progressive shallowing and decreasing degree of mantle melting over time. [less ▲]

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See detailA mineralogical and microstructural study of 7 eucrites (A-881394, Y-791195, Y-981617, Y-790266, Y-791186, Y-792510, Y-793591)
Foucart, Hélène ULg; Holness, Marian; Namur, Olivier ULg et al

Conference (2012)

The mineral chemistry and the detailed microstructure of seven eucrites (A-881394, Y-791195, Y-981617, Y-790266, Y-791186, Y-792510 and Y-793591) of the NIPR collection of Antarctic meteorites have been ... [more ▼]

The mineral chemistry and the detailed microstructure of seven eucrites (A-881394, Y-791195, Y-981617, Y-790266, Y-791186, Y-792510 and Y-793591) of the NIPR collection of Antarctic meteorites have been examined in order to constrain their modal mineralogy and chemistry and to explore the potential of microstructural analysis as a new tool for interpreting meteorites. [less ▲]

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See detailPrediction of plagioclase-melt equilibria in anhydrous silicate melts at 1 atm
Namur, Olivier ULg; Charlier, Bernard ULg; Toplis, Michael et al

in Contributions to Mineralogy & Petrology (2012), 163

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See detailDifferentiation of tholeiitic basalt to A-type granite in the Sept Iles layered intrusion, Canada
Namur, Olivier ULg; Charlier, Bernard; Toplis, Michael et al

in Journal of Petrology (2011)

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See detailAnorthosite formation by plagioclase flotation in ferrobasalt and implications for the lunar crust
Namur, Olivier ULg; Charlier, Bernard ULg; Pirard, Cassian et al

in Geochimica et Cosmochimica Acta (2011), 75

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See detailCrystallization sequence and magma chamber processes in the ferrobasaltic Sept Iles layered intrusion, Canada
Namur, Olivier ULg; Charlier, Bernard ULg; Toplis, Michael et al

in Journal of Petrology (2010), 51

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See detailA-type granite of the ferrobasaltic Sept Iles layered intrusion: a product of large-scale silicate liquid immiscibility
Charlier, Bernard ULg; Namur, Olivier ULg; Schiano, P. et al

in EOS : Transactions, American Geophysical Union (2009), 90(52), 14-06

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See detailCumulate origin and polybaric crystallization of Fe-Ti oxide ores in the Suwalki anorthosite, northeastern Poland
Charlier, Bernard ULg; Namur, Olivier ULg; Duchesne, Jean Clair et al

in Economic Geology (2009), 104

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See detailThe Sept Iles mafic layered intrusion; an example of ferrobasaltic differentiation
Namur, Olivier ULg; Charlier, Bernard ULg; Higgins, Michael et al

in Geochimica et Cosmochimica Acta (2007), 71(15S), 705

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