 | | Journal (article/letter/editorial) | | Mineralization in the Ambohimirahavavy Alkaline Complex, Madagascar Guillaume Estrade,1 Stefano Salvi,1,† Didier...Cenozoic Ambohimirahavavy alkaline complex in Madagascar consists of several syenitic to granitic intrusions...intrusions (24.2 ± 0.6 Ma) the largest of which, the Ampasibitika intrusion, is characterized by the presence...and Ca-HFSE-rich phases in pseudomorphs after aegirine-augite. In the exoskarn, the main HFSE-rich phases...alkaline complex, located in the northwest of Madagascar, has been the subject of a recent publication |  | Ram, Rahul, Becker, Megan, Brugger, Joël, Etschmann, Barbara, Burcher-Jones, Cody, Howard, Daryl, Kooyman, Patricia J., Petersen, Jochen (2019) Characterisation of a rare earth element- and zirconium-bearing ion-adsorption clay deposit in Madagascar. Chemical Geology, 522. 93-107 doi:10.1016/j.chemgeo.2019.05.011 | Journal (article/letter/editorial) | | element (REE)-bearing ionadsorption clay deposit in Madagascar Rahul Ram, Megan Becker, Joël Brugger, Barbara...(REE)-bearing ion-adsorption clay deposit in Madagascar, Chemical Geology, https://doi.org/10.1016/j...(REE)-bearing ion-adsorption SC RI PT clay deposit in Madagascar Rahul Rama,b,c*, Megan Beckerb,d, Joël Bruggerc*...Ambohimirahavavy igneous complex (Ampasibitika intrusion) in Madagascar hosts a world-class rare-earth element...profiles developing on acid rocks, including in Madagascar. Ce-LIII edge ED XANES spectroscopy shows that |  | | Journal (article/letter/editorial) | | Intergrowths with aegirine were not observed, but occasionally a thin fringe of aegirine, or of minute fibres...segirine-riebeckite granulite. 2 Narsarsuk, Greenland : aegirine-riebeckite granite. 3 Shira and Kila, Northern...Nigeria : ffigirine-riebeekite granite3. 4 Ampasibitika, Madagascar: regirine-riebeekite granite. 6 Although...containing riebeckite or aegirine are not rare in West Africa. They occur with aegirine rhyolites and alkaline... in the Saharan complexes of Ahaggar and Air, aegirine rhyolites are found.8 Riebfckite granites are |  | | Journal (article/letter/editorial) | | a diopside-hedenbergite with small amounts of aegirine in solid solution. At the locality E.S.E. of Camas...and having the properties of aegirine. The pleochroism of this aegirine is a and f} = grass green, y...the separate analysis in Table 2 indicates as an aegirine hedenbergite. The norm of the rock shows the presence...37-92 37-78 011 5a Geochemical Laboratories). 4. Aegirine-augite Granite, Sviatoy Noss, Transbaikalia, P...Kilchrist (Analyst Geochemical Laboratories). 3. Aegirine-hedenbergite Granite, contact against grossularite-woUastonite |  | | Journal (article/letter/editorial) | | fasibitikite (segirine-riebeckitegranite) of Madagascar,1 which approaches rockallite in composition...albite increases with that mineral. In the normal aegirine-granite albite is partly displaced by microcline...especially to the occurrence of Ampasibitika, North-West Madagascar, and to that of Ota, near Evisa,...believes that they are derived 1 Mineralogie de Madagascar, t. ii, 1922, p. 596. - Gesteins- und Mineralprovinzen...Mineralogie, 1920, pp. 488-99. * Mineralogie de Madagascar, t. ii, 1922, p. 596. 6 Proc. Roy. Soc. London |  | | Thesis/Dissertation | | Aux fokonolona des villages d’Ambodimadiro, Ampasibitika, Ambaliha, Befitina, Beraty, Tsarabanja pour... 5 Figure 2 : Les ensembles volcaniques de Madagascar …………………………………. 7 Figure 3 : Situation géologique...Au Cénozoïque, la couverture sédimentaire de Madagascar est traversée par d’importantes manifestations...affleurements de basalte sont également signalés. A Madagascar le complexe alcalin d’Ampasindava est un exemple...République de Madagascar comprenant dans son programme l’évaluation du potentiel minier de Madagascar, il nous |  | | Journal (article/letter/editorial) | | conia and samples of granite from the Ampasibitika area of Madagascar contained from 0.50 to 3.71/s zirconia...British Columbia, Rockall, and Madagascar are rich in riebeckite and aegirine, acmite, or arfvedsonite. The...The zirconia content of the Madagascar granites was attributed by Lacroix (1903, p. 236) to the presenceof...referred to as acmite and the greenish kind called aegirine may be connected with the presence of zirconia...Lecnorx, A. (1903): Matdriaux pour la min6ralogiede Madagascar;les rochesalcalines; la province p6trographique |  | | Journal (article/letter/editorial) | | minerals" to develop in the sand stone ar'e aegirine, aegirine-augite and some sodie arn phibole. ,\Vithi...there is marginal replacement of the augite by aegirine (Fig. 9.), and an increase in amount of intercrystal...hornblende becomes poikilitic in texture. The amount of aegirine-augite increases and the olivines become filled...noticeable that in the actuul eontact zone green aegirine-analcitelujavrite predominates. At the intersection...tanding foature being tho development af poikilitic aegirine 162 2 18 E. r. I-r.~M1LTO'l x Fig. 11 |  | | Book | | 3. Zonal on Koedoeslaagte. arrangement of aegirine in nepheline, Koedoeslaagte. XVI. Fig. 1....takes the dominant occurs together and thus aegirine together varying quantities. majority of the...most conditions. Amongst the femic minerals aegirine takes grains of about the well defined size ...Arfvedsonite and aegirine the vertical ; arfvedsonite, rarely showing ordinary light the aegirine in certain...indigo : probably to Sphene consists opaque Aegirine albite and , Biotite c : is light very |  | | Book | | diopside, commonly zoned to, and mantled by, titanian aegirine; spinels ranging in composition from Mg-bearing...after people Czech Republic Sweden from Latin Madagascar Australia Portugal South Africa 81 77 76 69...variety of pyroxenite consisting essentially of aegirine and apatite. (Belyankin & Vlodavets, 1932, p.63;...suggested for a rock consisting essentially of aegirine and nepheline. (Belyankin, 1929, p.22) AEGIRINITE...AEGIRINITE. An intrusive rock consisting essentially of aegirine-augite with minor nepheline and albite. (Polkanov |  | | Book | | also are represented: Brazil, Ecuador, Hawaii, Madagascar, Mexico, Peru; Armoricans, Australian aborigines...Carbonatite consisting of about equal amounts of aegirine-augite and apatite (30% each), calcite (22%),...Union, [aegirine + apatite] aegirinolith meta.? Rock related to skarn and composed of aegirine-augite...aegirine-augite, titanite, and magnetite, [aegirine] (Kretschmer in 1917) aegirite sed. Trade name for a bitumen allied...rite; not to be confused with the pyroxene mineral aegirine. [Possibly Aegir, god of the sea in Norse mythology] |  | | Journal (issue) | | transparent scapolites from Mozambique a n d Madagascar. It is interesting to compare their results with...one from Madagascar a n d one from an unknown locality. Those from Mozambique a n d Madagascar are described... 6 1-3821 1-3655 8 26 1-1602 11193 10349 Madagascar Bank a n d N u b e r 1970 I d obs* 609 4-422...seagull's egg. Further there may be dark green aegirine (acmite) a n d black arfvedsonite included. With...Langesundsfjord in Norway a n d from Ampasibitika in Madagascar. Famous among American collectors are |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Mineralogical Magazine A. LaCroix, Mineralogie de Madagascar, 1922 P. Embry and Fuller Manual of New Mineral...Brazil, and Czech Republic; minor deposits in Madagascar, Turkey, Romania, Germany, Austria, and Sri Lanka...Llallagua, Biggenden mine, Q, Australia; Fefena, Madagascar; P&J:92, R:710, other localities in Bolivia....near Oberon, NSW, Australia; Amparindravato, Madagascar. BM DI:445, R:778, P&J:131, ABI:110. 3.5.9.2...sapphires some and rubies Battambang, Cambodia. In Madagascar, equant of Antsirabé; are abundant in decomposed |
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