 | | Journal (article/letter/editorial) | | geochemistry of massif-type anorthosites from southwest Madagascar Received: 19 December 1997 / Accepted: 12 June...supracrustal gneisses in southwestern Madagascar. Two of these bodies (Ankafotia and Saririaky) appear to have... augite (Mg#=32±68) ilmenite magnetite apatite. High-alumina (to 6.1 wt% Al2O3) orthopyroxene...d'Antananarivo, B.P. 906, Ankatso, Antananarivo 101, Madagascar Present address: 1 Randgold & Exploration, Sanmatenga...mineral Sm-Nd isochron for samples from both the Ankafotia and Saririaky bodies. Initial isotopic ratios |  | | Journal (article/letter/editorial) | | massif-type anorthosite from the Ankafotia body of southwest Madagascar. The sample studied is a coarse-grained...(25–100 km2) massif-type anorthosite bodies (Ankafotia, Saririaky, Volovolo, and Manambahy) occur within...granulite facies ductile shear zones in southwestern Madagascar (Boulanger, 1959; Morel, 1996; Ashwal et al....(1998) estimated that magmatic emplacement of the Ankafotia and Saririaky anorthosite bodies took place at...(whole rock, plagioclase, pyroxene, ilmenite, apatite, garnet) for a garnetiferous oxiderich gabbro from |  | Nasdala, Lutz, Wenzel, Marita, Vavra, Gerhard, Irmer, Gert, Wenzel, Thomas, Kober, Bernd (2001) Metamictisation of natural zircon: accumulation versus thermal annealing of radioactivity-induced damage. Contributions to Mineralogy and Petrology, 141 (2) 125-144 doi:10.1007/s004100000235 | Journal (article/letter/editorial) | | become metamict. Others (such as monazite and apatite) are mostly observed in the crystalline state,...result of a-recoils was demonstrated to occur in apatite structures (e.g. Weber 1993). In contrast, zircon...observations on the annealing of ®ssion tracks in apatite (Jonckheere and Wagner 2000; R. Jonckheere, personal...less metamict, unzoned areas. Zircons from Ankafotia, Madagascar Fig. 8 FWHM versus ¯uence plot for inherited...coarse-grained leuconorite M93±439 from the Ankafotia body, southwestern Madagascar, show a remarkable spectrum of |  | | Journal (article/letter/editorial) | | Proterozoic massif-type anorthosite in India and Madagascar (adopted from Sengupta et al., 1999). (1) Chilka...Ottanchatram (Janardhan and Wiebe, 1985), (5) Ankafotia (Ashwal et al., 1998), (6) Saririaky (Boulanger...Cuddapah basin; GR, MR: Godavari and Mahanadi rifts; Madagascar: V, AC: Pan-African Vohibory and Androyan granulite...modal contents of zircon, thorite (metamict), apatite and ilmenite. Due to the modal abundance of igneous...geochemistry of massif-type anorthosites from southwest Madagascar. Contrib. Mineral. Petrol. 133, 389 – 401. Bhattacharya |  | | Journal (article/letter/editorial) | | (different) anorthosite bodies in the Rogaland district of S. W. Norway formed in a catazonal and syn-orogenic...1959, p. 71) has classified the anorthosites of Madagascar into three types each with distinctive features:...and OTTO, 1960) Ankafotia, Saririaky, Manambahy and Volovolo plutons, S. W. Madagascar (BouLANGER,1957...Garnet widespread. Primary accessories common - - apatite and ilmenite-magnetite. No platinoidor chromitite-bearing...Bjerkrem-Sogndal lopolithic complex in the Rogaland district (P. MicaoT, 1960, p. 12). Funnel-shaped bodies |  | | Book | | Anorthosites in Africa .......................... 2.12.9 Madagascar ....................... 2.12.10 Australia............ 191 3.14.5 Anorthosites of Africa and Madagascar 191 3.14.5.1 The Kunene Complex, Angola;N"amibia.................. 192 3.14.5.3 Anorthosites of Madagascar ......... 195 3.14.6 Anorthosites of the U.S...the highest metamorphic grades, for example in Madagascar, India, South Africa, and West Greenland (e.g...based on occurrences near the village of Sakeny, Madagascar. These and similar occurrences of highly metamorphosed |  | | Journal (article/letter/editorial) | | exception of those in the O’okiep [sic] Copper District (Namaqua mobile belt, South Africa).” Today, Cu-Ni-Co...(Ryan et al., 1995; Ryan, 2000); (2) the Okiep district, Koperberg anorthosite suite, Namaqualand, TABLE...mantle. Exceptions are the Ankafotia and Saririaky massifs in Madagascar (ISr = 0.70328– 0.70407 and...dating of coexisting baddeleyite, zircon, and apatite: Lithos, v. 47, p. 33–51. Amelin, Y., Li, C., Valeyev...geochemistry of massif-type anorthosites from southwest Madagascar: Contributions to Mineralogy and Petrology, v |  | | Book (volume) | | Aragonite Strontianite . Witherite PHOSPHATES Apatite Monazite HALIDES . Fluorite Halite . INDEX . ...Bancroft areas in Ontario, or in the Coimbatore district of Madras. Although originally believed to be...p. 264. Eckermann, H. von, 1948. The alkaline district of Alno Island. Undersok., Ser. Ca., No. 36. Eppler... Ferrian ilmenite, anorthosite-norite, Ankafotia, Madagascar (Boulanger, 1957). 3. Ilmenite, fayalite...Boulanger, J., 1957. Les anorthosites de Madagascar. Serv. Oeol. Madagascar, Trav. Bur. Geol., No. 79. Bowie |  | | Book | | A, No. 2, 61. 1938 (with Harvey, C. O.). An apatite rock from Dumfriesshire, Great Britain. Summ. Progr...and structure of the Moine Schists in the Morar district, western Inverness-shire. Abstract. Proc. geol...the sedimentary-volcanic sequences in the Kenema district of Sierra Leone reach the amphibolite and granulite...Petrogenesis and geochemistry of the rocks of the Kenema district, Sierra Leone. 12th Ann. Rep. Res. Inst. African...d’ages absolus sur les séries précambriennes de Madagascar. C.R. Acad. Sci. Paris, 258, 1853. De Sitter |
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