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| Berger, Julien, Diot, HervĂ©, Lo, Khalidou, Ohnenstetter, Daniel, FĂ©mĂ©nias, Olivier, Pivin, Marjorie, Demaiffe, Daniel, Bernard, Alain, Charlier, Bernard (2013) Petrogenesis of Archean PGM-bearing chromitites and associated ultramaficâmaficâanorthositic rocks from the Guelb el Azib layered complex (West African craton, Mauritania) Precambrian Research, 224. 612-628 doi:10.1016/j.precamres.2012.10.005 | Journal (article/letter/editorial) | | tic rocks from the Guelb el Azib
layered complex (West African craton, Mauritania)
Julien Berger a,â...de Nantes, France
c
Université de Nouakchott, Mauritania
d
Centre de Recherches Pétrographiques et Géochimiques...The Archean Guelb el Azib layered complex (GAC) in the West African craton of Mauritania is composed...informations are from Potrel et al. (1998).
GAC: Guelb el Azib Complex.
(Polat et al., 2009, 2010; Windley...this study, we present new data on the Archean Guelb el Azib
complex, a new occurrence of layered anorthosite | đ Image
| | Book | | deposits in Morocco, Algeria, Tunisia, Mali,
Mauritania, Egypt, Sudan, and Eritrea. Originally our goal...the setting and origin of major deposits in the region, together with
information on tonnages and grades...Souiah, reports on the geology and mineralogy of the El
Hammam REE-rich fluorite deposit in Morocco, suggesting...is followed by
I.K. Khalil, A.M. Moghazi, and A.M. El Makky on mineralogical and geochemical constraints...comparisons and contrasts with MVT deposits in the region.
The last part is focused on sediment-hosted iron | đ Image
| | Journal (article/letter/editorial) | | [1000lnÎČ of pyrope > almandine â spessartine > grossular (Antonelli
et al., 2019c)], as shown in Fig. 5...Forsterite 1/16
Forsterite 1/32
Forsterite 1/64
Grossular
Pyrope 1/12
Pyrope 1/24
Almandine 1/12
Spessartine...4205
1.000
Forsterite 1/32
Forsterite 1/64
Grossular
Oldhamite
Pigeonite 1/8
Pigeonite 1/16
Pigeonite...pyrope having the highest predicted 1000lnÎČ and grossular having the lowest
1000lnÎČ. In order to represent...fractionations expected at equilibrium, we report grossular-mineral
predictions at high temperatures (1000âC) |
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