 | | Journal (article/letter/editorial) | | PGM-bearing chromitites at the Ranomena mine, Toamasina chromite district, Madagascar Giovanni Grieco ⁎, Anna...group elements Platinum group minerals Chromitite Madagascar a b s t r a c t This paper presents new data...the Ranomena mine, the only past-producing chromite mine in the North Toamasina chromite district of Eastern...Eastern Madagascar. Such data can provide an insight on tectonic setting that led to emplacement of their...the differences with other chromite deposits of Madagascar. Chromitite host rocks are harzburgite and pyroxenite |  | Ishwar-Kumar, C., Windley, B.F., Horie, K., Kato, T., Hokada, T., Itaya, T., Yagi, K., Gouzu, C., Sajeev, K. (2013) A Rodinian suture in western India: New insights on India-Madagascar correlations. Precambrian Research, 236. 227-251 doi:10.1016/j.precamres.2013.07.023 | Journal (article/letter/editorial) | | suture in western India: New insights on India-Madagascar correlations C. Ishwar-Kumar a , B.F. Windley...geochronological data from western India and eastern Madagascar suggest diachronous ocean closure during the...(Rajasthan, NW India), Seychelles and northern Madagascar and interpreted to represent the western margin...(Ashwal et al., 2013). However, the position of Madagascar and its connection with western India during...et al., 2008). The configuration of India and Madagascar in Gondwana is well known compared to that in |  | | Journal (article/letter/editorial) | | Neoproterozoic–Phanerozoic boundary in central southern Madagascar Jörg Giese a,∗ , Alfons Berger b , Guido Schreurs...2011 Available online 8 January 2011 Keywords: Madagascar Monazite U–Th–Pb dating Middle crust Tectonics...African Orogen a b s t r a c t In central southern Madagascar the crystalline basement is composed of mid-crustal...phases can be distinguished in central southern Madagascar. Both these deformation phases occur between...heterogeneously distributed in central southern Madagascar. Newly developed M2 mineral assemblages are preferentially |  | | Journal (article/letter/editorial) | | Ackermand Tectonic framework of the Precambrian of Madagascar and its Gondwana connections: a review and reappraisal...1993/Accepted: 31 January 1994 Abstract The Precambrian of Madagascar is divided into two sectors by the north-west...marbles) of Kibaran age are present in western Madagascar. Two partly greenschist grade sedimentary groups...basement in north-east Madagascar. Isotopic age data suggest the presence in Madagascar of Archaean, Early...Universitaire d'Ambohitsaina, BP 906, Antananarivo, Madagascar T. Razakamanana D6partement de Sciences Naturelles |  | | Journal (article/letter/editorial) | | Ackermand Tectonic framework of the Precambrian of Madagascar and its Gondwana connections: a review and reappraisal...1993/Accepted: 31 January 1994 Abstract The Precambrian of Madagascar is divided into two sectors by the north-west...marbles) of Kibaran age are present in western Madagascar. Two partly greenschist grade sedimentary groups...basement in north-east Madagascar. Isotopic age data suggest the presence in Madagascar of Archaean, Early...Universitaire d'Ambohitsaina, BP 906, Antananarivo, Madagascar T. Razakamanana D6partement de Sciences Naturelles |  | | Report (issue) | | The Natural History Museum of Milan and its Madagascar Collection The Museo Civico di Storia Naturale... the museum began paleontologic fieldwork in Madagascar (upper Permian fauna and Jurassic and Cretaceous...fieldwork in Madagascar in 1996 in collaboration with other institu tions in Madagascar, Italy, and the...Pezzotta has spent a total of twenty nine months in Madagascar making geological-mineralogical surveys. In collaboration...both classic and new minerals and gemstones from Madagascar opened at the Natural History Museum in Milan |  | | Book | | 96 98 104 108 110 114 118 120 124 130 134 138 Madagascar Madeira (Portugal) Malawi Mali Mauritania Mauritius...platinum-group metals (PGM), titanium minerals (rutile and ilmenite), vanadium, vermiculite and zirconium (Coakley...the Pharaoh Sethos I, together with his son Ramses II, who had to initiate new mining operations for gold...basins of Africa. The Jurassic and Cretaceous of Madagascar, East and Northeast Africa widely contain a Tethyan...Tanzania, Kenya, Uganda, Zambia, Zimbabwe and Madagascar. These Karoo troughs resulted from a long period |  | Rakhimov, Ildar R., Saveliev, Dmitri E., Rassomakhin, Mikhail A., Samigullin, Aidar A. (2022) Chromian Spinels from Kazanian-Stage Placers in the Southern Pre-Urals, Bashkiria, Russia: Morphological and Chemical Features and Evidence for Provenance. Minerals, 12 (7) 849 doi:10.3390/min12070849 | Journal (article/letter/editorial) | | their compositions was provided (chromian spinels, ilmenite, magnetite/hematite, titanomagnetite, titanite...crystals with minor defects of vertexes and edges; (II) octahedral crystals with obvious defects of facets...referred to group I, 30these, grains18 (38.5%) group II, 15 grains (19.2%) to further morphological and chemical...are referred to group I, 30 grains (38.5%) to group II, 15 grains (19.2%) to eachthe morphology of chromian...Thealmost amount of chromian spinel in the I and II have theestimated size of 150–200 µm. Crystals of |  | | Journal (volume) | | was nicely shown for the case of oxidation of Mn(II) by bacteria [5]. Due to the rather low absorption...physics and chemistry of actinide-bearing materials; ii.) first principles, multi-scale modeling of complex...B. (2008) (eds.) Adsorption of metals by geomedia II: Variables, mechanisms, and model applications. Elsevier...outermost limefree zone (I), the transition zone (II), and the unreacted zone (III) on a periclase-based...Technische Universität München, Garching, Germany 3 FRM II, Technische Universität München, Garching, Germany |  | | Book | | conical hills in \\'hich laYas oi Pre-Cambrian I II outcrop, dipping about 10° away _from the 1nain quartzite...s1n1ilar rocks off the main quartzite rn.c'lSS (P.C. II) can be seen on the right side uf the picture. Photography.... . . . . . . . . . . . . . . . . . . . xv I II. NEW DATA ON THE PRE-CAMBRIAN ALONG THE GULF OF SUEZ... E. Anti-Atlas Akjonjt Boundar y ~ X. X I. XI II. 1 61 161 162 168 171 1 73 1 77 THE PRE-CA~lBRIAN...Determinations . . . . . 184 2. XI I. 129 137 1 47 II. ~ORTH\VEST .A.LGERI A ' ' III. 117 Isotopic Age |
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