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See detailPalaeoenvironmental study and small scale correlations using facies analysis and magnetic susceptibility of the Mid-Emsian (Himmelbaach quarry, Luxembourg).
Michel, Jonathan ULg; Boulvain, Frédéric ULg; Philippo, Simon et al

in Geologica Belgica (2010), 13(4), 447-458

The Himmelbaach quarry is located in the Wiltz Synclinorium in Luxembourg. The rocks outcropping in this quarry correspond to the mid-Emsian Clervaux Shales Formation. Three different facies have been ... [more ▼]

The Himmelbaach quarry is located in the Wiltz Synclinorium in Luxembourg. The rocks outcropping in this quarry correspond to the mid-Emsian Clervaux Shales Formation. Three different facies have been identified in the quarry. An argillaceous sandstone facies with oblique stratifications, cross-stratifications, herring-bones and erosive bases represent the first facies; the second facies is characterized by lenticular- (with connected lenses) to wavy-bedded sandy argillites, argillaceous sandstones and quartz arenites. The last facies corresponds to a quartz arenite with oblique stratification, planar laminations and mud drapes. The base of this facies shows flaser bedding and sigmoidally curved bed surfaces. The palaeoenvironmental study of this area is rather difficult because of the structural deformation and lateral variation of the facies. Due to this deformation, six partial sections (4a to 4f) were sampled here. In order to reconstruct a reliable vertical and lateral succession of the depositional setting, facies analysis and magnetic susceptibility were used. Magnetic susceptibility (MS) is generally applied as a tool for correlation in a deepwater carbonated environment. In this paper we used the MS technique successfully in a siliciclastic proximal setting. Analysis of MS curves as well as the recognition of three marker beds ((1) the last bed of argillaceous sandstones in Facies 1; (2) a thin horizon of carbonated sandstone within Facies 2; (3) the first appearance of the characteristics massive quartzitic beds in Facies 3) allowed the correlation of sections 4a, 4b and 4c. These correlations helped us to reconstruct a vertical and lateral succession of facies, which ultimately led to the recognition of a tide-dominated marginal-marine depositional model composed respectively of tidal channels (Facies 1), a tidal flat (Facies 2) and a tidal sand ridge (Facies 3). This example also shows the usefulness of magnetic susceptibility for small scale correlation, even in a proximal environment such as a marginal-marine setting. [less ▲]

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See detailQingheiite-(Fe2+), Na2Fe2+MgAl(PO4)3, a new phosphate mineral from the Sebastião Cristino pegmatite, Minas Gerais, Brazil
Hatert, Frédéric ULg; Baijot, Maxime ULg; Philippo, Simon et al

in European Journal of Mineralogy (2010), 22

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See detailLa qinghéiite-(Fe2+), une nouvelle espèce minérale de la pegmatite de Sebastiano Cristino, Minas Gerais, Brésil
Baijot, Maxime ULg; Hatert, Frédéric ULg; Philippo, Simon et al

in Abstract book, 27ème Réunion annuelle des collaborateurs scientifiques du Musée d'histoire naturelle du Luxembourg (2010)

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See detailMineralogy and petrography of phosphate minerals from pegmatites of the Conselheiro Pena district, Minas Gerais, Brazil
Baijot, Maxime ULg; Hatert, Frédéric ULg; Philippo, Simon

in Acta Mineralogica-Petrographica, Abstract series (2010), 6

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See detailQingheiite-(Fe2+), a new member of the wyllieite group
Hatert, Frédéric ULg; Baijot, Maxime ULg; Philippo, Simon

in Acta Mineralogica-Petrographica, Abstract series (2010), 6

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See detailMinéralogie et pétrographie des phosphates de pegmatites brésiliennes, avec un intérêt particulier pour leurs relations avec les silicates
Baijot, Maxime ULg; Hatert, Frédéric ULg; Philippo, Simon

in Abstract book, 26ème Réunion annuelle des collaborateurs scientifiques du Musée d'histoire naturelle du Luxembourg (2009)

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See detailMineralogy and petrography of phosphate minerals from Sapucaia and Boca Rica pegmatites, Minas Gerais, Brazil
Baijot, Maxime ULg; Hatert, Frédéric ULg; Philippo, Simon et al

in Estudios Geologicos (2009), 19(2), 47-51

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See detailUne nouvelle macle de la pyrrhotite sur un échantillon de la mine El ,Potosi, Santa Eulalia, Chihuahua, Mexique
Philippo, Simon; Hatert, Frédéric ULg

in Le règne minéral (2009), 90

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