 | | Journal (article/letter/editorial) | | in ultramafic complexes at western Andriamena, Madagascar I. McDonald* Small (,2 km diameter), ultramafic...intrusive complexes in the Andriamena region of Madagascar carry high concentrations of platinum-group elements...liquid–olivine–sulphide liquid into the dyke-like Lavatrafo intrusions. The high As content of the sulphide...Arsenides, Ultramafic complexes, Andriamena, Madagascar Introduction Geochemical exploration carried...uk complexes near Lavatrafo in the west Andriamena region of northern Madagascar (Fig. 1) contain high |  | McDonald, I., Ohnenstetter, D., Ohnenstetter, M., Vaughan, D. J. (1999) Palladium oxides in ultramafic complexes near Lavatrafo, Western Andriamena,
Madagascar. Mineralogical Magazine, 63 (3) 345-352 doi:10.1180/002646199548565 | Journal (article/letter/editorial) | | in ultramafic complexes near Lavatrafo, Western Andriamena, Madagascar ]L. MCDONALD 1" , D. OHNENSTETTER...intrusive complexes in the Andriamena region of Madagascar contain zones with disseminated chromite and...palladium, oxygen, hydrated oxides, Andriamena, Madagascar. Introduction GEOCHEMICALexploration carried...mafic intrusive complexes near Lavatrafo in the Andriamena region of Madagascar (Fig. 1) contain high concentrations...and drilling have shown that dunites within the Lavatrafo UM2 and UM3 ultramafic complexes defined by Salp6teur |  | | Journal (article/letter/editorial) | | Pd bismuth tellurides, possibly maslovite and michenerite, and an unnamed Pd–Pb bismuth telluride. Maucherite...massive sulfide. Another Pd–Bi telluride, possibly michenerite, occurs as subhedral inclusions in pyrrhotite...also show the widest range of minerals, with michenerite and a Pd–Pb telluride occurring as well as sperrylite...Disseminated ore contains only one grain of moncheite. Michenerite occurs solely in Cu-rich vein ore. The size distribution...magmatic sulfide ores from the Noril’sk–Talnakh district, Siberia. Can. Mineral. 30, 249287. DILLON-LEITCH |  | Suárez, Saioa, Prichard, Hazel M., Velasco, Francisco, Fisher, Peter C., McDonald, Iain (2010) Alteration of platinum-group minerals and dispersion of platinum-group elements during progressive weathering of the Aguablanca Ni–Cu deposit, SW Spain. Mineralium Deposita, 45 (4) 331-350 doi:10.1007/s00126-009-0275-x | Journal (article/letter/editorial) | | Pd-tellurides and bismuthotellurides including michenerite (PdBiTe), merenskyite (PdTe2), moncheite (PtTe2)...merenskyite (PdTe2) and bismuthotellurides including michenerite (PdBiTe) and rare Pt–Pd±Cu phases. Eleven grains...diameter (Fig. 3, 6). Similar-sized subhedral michenerite (PdBiTe) is present in goethite usually closely...closely associated with sulphides. Highly altered michenerite is located far from the pyrite crystals, in goethite... Sperrylite Moncheite Merenskyite-Moncheite Michenerite Others PtAs2 PtTe2 (Pd, Pt) Te2 Pd Bi Te [(Pd |  | | Journal (article/letter/editorial) | | bismuthotellurides (moncheite, merenskyite, michenerite and kotulskite), antimonides (sudburyite and...in ultramafic complexes near Lavatrafo, western Andriamena, Madagascar. Mineralog. Mag., 63, 1999, 345–52...ferralitic soils of the West Andriamena area (Madagascar): evidence of a supergene origin of some Pt and |  | | Journal (article/letter/editorial) | | Bushveld Complex in South Africa, of the Sudbury district in Canada, and later Norilsk in Russia grand style...Bushveld Complex in South Africa, of the Sudbury district in Canada, and later Norilsk in Russia came into...Bushveld Complex in Southfrom Africa, of the Sudbury district in Canada, The 2054.4 [1–3]. ± 1.3-Ma-old [9]...maslovite [PtBiTe], merenskyite [PdTe2 ], and michenerite [PdBiTe], and a second, rarer group [MeX] consists...alloy (Pt–Fe). Adit A, (F) concession. Grain of michenerite center)(white, in disintegration. Alteration |  | | Journal (article/letter/editorial) | | Since the 1930s, plutons of the Monchegorsk ore district have been regarded as nickel-bearing. The first...Paleoproterozoic layered plutons of the Monchegorsk ore district were discovered in the late 1990s. As Corresponding...Stannopalladinite Palarstanide Kotulskite Moncheite Michenerite Merenskyite Telluropalladinite Keithconnite Telargpalite...in Ultramafic Complexes near Lavatrafo, Western Andriamena, Madagascar,” Mineral. Mag. 63 (3), 345–352...34. Layered Intrusions of the Monchegorsk Ore District: Petrology, Ore Mineralization, Isotopes, and |  | | Journal (article/letter/editorial) | | commonly described from other layered intrusions. Michenerite (PdBiTe) is the most common Pd-bearing PGM in...in ultramafic complexes near Lavatrafo, Western Andriamena, Madagascar, Mineral. Mag., 63, 345–352. Mungall...ferralitic soils of the West Andriamena area (Madagascar); evidence of a supergene origin of some Pt and |  | | Journal (article/letter/editorial) | | chalcopyrite, stibiopalladinite, atokite, irarsite, michenerite, moncheite or Au–Ag–Cu alloy. An exceptional...shallow levels of an ultramafic intrusion in Madagascar (McDonald et al. 1999a). Pd–O–H phases with a...Pt–Fe nuggets from alluvial deposits in eastern Madagascar. Can. Mineral. 30, 983-1004. ________ & ________...in ultramafic complexes near Lavatrafo, western Andriamena, Madagascar. Mineral. Mag. 63, 345-352. ________ |  | | Book | | and high-Al chromitites from the Sagua de Tanamo District, Mayari-Cristal ophiolitic massif (Eastern Cuba):...platinum-group minerals from the Manampotsy area, East Madagascar. Aust. J. Earth Sci. 1992, 39, 389–404. [CrossRef]...Siberia, 31 October–2 November 2001; Elan’, Kemerovo District: Novosibirsk, Russian, 2001; pp. 126–132. (In...Komsomolsky mine in the Talnakh deposit of the Noril’sk district, Russia. The sample was found at coordinates:...Kerr-Addison mine, ON, Canada [15]; in the Itabira district, Minas Gerais, Brazil [16]; the Bleida Far West |
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