 | | Book | | DE MADAGASCAR ET DÉPENDANCES GÉNÉRAL GOUVERNEMENT LES PIERRES A par PRÉCIEUSES MADAGASCAR M. ...Trimestre 1906) LES PIERRES à PRÉCIEUSES Madagascar PIERRES PRÉCIEUSES LES Etat actuel de la...année. vient de A MADAGASCAR pierres précieuses remplir dans à Madagascar la Colonie Cette mission...plus productive, provinces de l’Imerina Vakinankaratra et d’Ambositra ; la seconde constitue plutôt...de Fianarantsoa jusqu’à la mont Vohimirafy (district de nous documenter sur la limite nord de la |  | | Journal (article/letter/editorial) | | RECENT MINING AT THE ANTANDROKOMBY PEGMATITE, MADAGASCAR J. W Nizamofl’ A. U.FalsteG’ F. Pezzotu,2 W B...about 35 kilometers south of Antsirabe, in the Manandona Valley, Madagascar. The dike strikes approximately...overgrowth on microcline, and as pale blue feltlike masses on the pocket floor. Pale gray microcline, exhibiting...GEOCHEMICAL VARIATION IN TOURMALINE FROM ANTANDROKOMBY, MADAGASCAR. J. W Nizarnofil A. U.Falster, E Peuota, W B...near the village of Ambatolampy, about 35 kilometers south of Antsirabe, Madagascar, The pegmatite is hosted |  | Yang, Xi-An, Chen, Yu-Chuan, Liu, Shan-Bao, Hou, Ke-Jun, Chen, Zhen-Yu, Liu, Jia-Jun (2015) U–Pb zircon geochronology and geochemistry of Neoproterozoic granitoids of the Maevatanana area, Madagascar: implications for Neoproterozoic crustal extension of the Imorona–Itsindro Suite and subsequent lithospheric subduction. International Geology Review, 57 (11) 1633-1649 doi:10.1080/00206814.2014.977969 | Journal (article/letter/editorial) | | Neoproterozoic granitoids of the Maevatanana area, Madagascar: implications for Neoproterozoic crustal extension...components of exposed basement in west-central Madagascar. Here, we report precise new zircon U–Pb ages...for granitoids within the Maevatanana area of Madagascar. The new laser ablation inductively coupled plasma...granitoids; Maevatanana; Madagascar 1. Introduction The island of Madagascar consists of a collage of...et al. 2001; Meert 2003; Fritz et al. 2013). Madagascar lies in the heart of the EAO, and the exposed |  | | Book (volume) | | ÏLi CEOLC-I: Uoogl. Kerk», *ch( 1 7 ü - ’D-'ir .II. Lei.&n MliMilMIJJUll! LA 1)1! SUPPLEMENT...figurent pas dans ceux-ci. En ce qui concerne Madagascar, d’où documents nouveaux, offrant un intérêt...coloration brun rouge. GISEMENTS ET ASSOCIATIONS Madagascar. — J’ai donné le nom d’ampaugabéite [C. B. CXLIV...ANrHOPHYLLITE-GÉDRITE (ï. p. 035; 1 , T. VI, p. 784). — Madagascar. J’ai rencontré [B. S.M. XXXV. 97. 1912) un...micaschistes mont Bitv). IV, p. 787). — Madagascar. J’ai visité le gisement d’Ambatoarina, d’où |  | Giuliani, Gaston, Fallick, Anthony, Rakotondrazafy, Michel, Ohnenstetter, Daniel, Andriamamonjy, Alfred, Ralantoarison, Théogène, Rakotosamizanany, Saholy, Razanatseheno, Marie, Offant, Yohann, Garnier, Virginie, Dunaigre, Christian, Schwarz, Dietmar, Mercier, Alain, Ratrimo, Voahangy, Ralison, Bruno (2007) Oxygen isotope systematics of gem corundum deposits in Madagascar: relevance for their geological origin. Mineralium Deposita, 42 (3) 251-270 doi:10.1007/s00126-006-0105-3 | Journal (article/letter/editorial) | | isotope systematics of gem corundum deposits in Madagascar: relevance for their geological origin Gaston...d’Antananarivo, Ambohitsaina, BP 906, Antananarivo 101, Madagascar Y. Offant Cerege, Europole Méditerranéen de l’Arbois...Ambaranjana Antanimora, Antananarivo 101, Madagascar ces in Madagascar to provide a gemstone geological identification...characterization. Primary corundum deposits in Madagascar are hosted in magmatic (syenite and alkali basalt)...environments in the northern and central regions of Madagascar have consistent δ18O values between 3.5 and 6 |  | | Book | | 80 Emerald and 140 Beryls, as Founda- Part II 86 87 Birthstones, Beryl in India, CHEMICAL AND... Japan, 462 Switzerland, 510 Tanzania 463 Madagascar (Malagasy Republic), Malawi Nepal, 482 513...of cultural the present work astrological Part II lesser extent, a of part to knowledge has been...derived from erald. 5 M. but C. . which to II in the searched the literature for references to...more km) from Coptos passed center for these district, correspond cites a King to the are to Bostock |  | | Journal (article/letter/editorial) | | by U–Pb zircon dating of granites from central Madagascar Jean-Louis Paquette b a,) , Anne Nedelec ´...and West Gondwana during Neoproterozoic times. Madagascar, which represents a fragment of East Gondwana...timing of orogenic events. The central part of Madagascar is characterized by syntectonic alkaline granitic...of Lower Proterozoic crust in northern central Madagascar. The generation of huge amounts of granitic magma...assembly along the collision zone between central Madagascar and Kenya, i.e., in the central part of the East |  | Razanatseheno, M. O. M., Nédélec, A., Rakotondrazafy, M., Meert, J. G., Ralison, B. (2009) Four-stage building of the Cambrian Carion pluton (Madagascar). Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 100 (1). 133-145 doi:10.1017/s1755691009016156 | Journal (article/letter/editorial) | | Four-stage building of the Cambrian Carion pluton (Madagascar) M. O. M. Razanatseheno, A. Nédélec, M. Rakotondrazafy...Four-stage building of the Cambrian Carion pluton (Madagascar). Earth and Environmental Science Transactions...Four-stage building of the Cambrian Carion pluton (Madagascar) M. O. M. Razanatseheno1, A. Nédélec2, M. Rakotondrazafy1...Earth Sciences, BP 906, Antananarivo University, Madagascar 2 LMTG – OMP, Toulouse University – CNRS-IRD...pre-drift reconstruction of Gondwana (Fig. 1a), Madagascar is located in the East African Orogen, a collisional |  | | Book (volume) | | Bulletin de le la. Muséum en particulier Madagascar, ai joint le Comptes Société française de...autre quadratique, mais presque cubique, la braunite. II * IV Braunite Mn Mn O Bixbyite Fe Mn O s...suivantes : IV II Mn 2 Mn0 4 Pb Pb0 Haussmannite Minium 2 4 HAUSSMANNITE IV II MrLMnO 4 Quadratique...heymerie a désigné cette substance sous néral. t II, 339 , 1 859) 6 la Réalité Rancié. , qu’il...Na 2 0 CuO + PbO Fe 2 O 3 As 2 O 5 P 2 O 5 ..... II 2 0 Gangue. SiO 2 . )) 0,10 » j )) 0,10 0 |  | Alessio, Brandon L., Collins, Alan S., Siegfried, Peter, Glorie, Stijn, De Waele, Bert, Payne, Justin, Archibald, Donnelly B. (2019) Neoproterozoic tectonic geography of the south-east Congo Craton in Zambia as deduced from the age and composition of detrital zircons. Geoscience Frontiers, 10 (6) 2045-2061 doi:10.1016/j.gsf.2018.07.005 | Journal (article/letter/editorial) | | Congo Craton and Irumide belt and wider afield to Madagascar (Azania) and India. These correlations are then...Palaeoproterozoic detrital zircons found in parts of central Madagascar and the Southern Granulite Terrane of India linking...elsewhere in Africa and even further afield in Madagascar and India. These correlations can represent depositional...Permo-Triassic Karoo Graben that forms the Luangwa Valley (Johnson et al., 2006). Aeromagnetic data have...the belts and that the presence of the Luangwa Valley between them masks a key suture along the margin |  | | Report (issue) | | districts of principal graphite production of Madagascar. ._-___-__--_-__-__-__-___-_____-__--____-__--_...for these uses has been obtained mostly from Madagascar since World War I. Some flake graphite of strategic...should lessen the competitive advantage of the Madagascar producers of crucible flake. Graphite of various...to competition from producers in Madagascar. Deposits in Madagascar are large and relatively high in...as major advantages of Madagascar flake. In addition, the usability of Madagascar flake for various purposes |  | | Book (edition) | | dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....byssolite. Mono- coast of North America: Kobuk River Valley, Alaska, clinic, C2/m, a,b,c = 9.89, 18.20, 5.31...e.g. on Grossgreiner Mt., overlooking Zillertal Valley, Tirol, Austria, and at Passo di Vizze, Trentino-Alto...western Sayan Mts., white at Burumskoye, Vitim River Valley, all Siberia, Russia. In many localities in New...Ambohitromby and Tongfeno, S of Betafo, both Madagascar. Tabular crystals to 1 cm in Alpine fissures |  | | Journal (issue) | | only comprehensive mineralogical study of the district. This work is as valuable today as it was 37 years...west. Butte is situated in the Summit Valley, an intermontane valley at an elevation of 1,800 meters (5...extraction technology originally conceived in the district were considered the state-of-the-art around the...Marcosson, 1957). By the winter of 1864 the Summit Valley district (Butte’s original name) had been organized...bulk of the primary silver produced in the Butte district eventually came from the Rainbow vein system. |  | | Book | | Batholith near Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay)...(Fig. 28-12). The gold deposits in the Georgetown district are of Proterozoic age. From Branch (1966), with...but there are minor exceptions. In the La Plata district N.W. of Durango, Colorado (Eckel et al., 1949;...contact. 1037 Fig. 28-17. La Plata Au,Ag,Pb,Zn district, S.W. Colorado, showing distribution of ore veins...or perthitic stable polymorphs, orthoclase or microcline. The rocks range from gabbro to granite, and |  | | Book | | Batholith near Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay).... * 2 •H r J Ü ÜJ CD er • H T 3 4-» ^4-1 · · » M II Pi 0) · Η 14-1 > , CU 3 d H μ 3 (4 U rH X I 4-1 >->...H Ν | CN CO «4-1 • Η 4-> 4=> £ CU II rH rH Ο Ο 4J •H o T3 CÖ 3 II Η · Η i—1 CO O μ cd CN «4-1 ρ* CU «4Η...4-> cd CJ 4-» u r Ö Cd II ÖJO · Η Ή Ν •H •H 4-J Ö rC •H O Ο χ cd CU α ί O II U CO r-H || · * μ T3 u cd...O f-l 0 cd ^-s μ /-N cu o r 0) PH ö cd = 4-» -H H II C o O cd to Ή T ) cu S T J 4-J CO CU CO O 4-» rH |  | | Book | | major producing districts, or a representative district if there are many. We name the chief mining companies...graphite supply must come not merely from one district but from a single mine. Thus the physical properties...ultramafic rocks stretching from the Baie Verte district of Newfoundland though the Thetford Mines, Black...Eastern Quebec The leading asbestos-producing district in the world outside the USSR is the Thetford...the Eastern Townships of Quebec (Figure 1). The district is divided into four producing centers, from East |  | | Report (volume) | | Africa–Antarctica Orogenic Belt in central and northern Madagascar 49 WENDORFF, M. Tectonosedimentary expressions... geological survey of the basement rocks of Madagascar, providing an overview of the five Archaean to...Neoproterozoic collision and amalgamation history of the Madagascar segment of the East Africa– Antarctica Orogen...aspects of granulite metamorphism, geology of Madagascar and other Indian Ocean continental fragments...Antarctica Orogenic Belt in central and northern Madagascar. In: van Hinsbergen, D. J. J., Buiter, S. J. |  | | Book | | (Radiometric) Methods 3. Geohistorical Methods. . II. Division of the Precambrian 1. Stratigraphic Units...the Lower Neoprotozoic. . . . . . . . . . . . . . . II. The Middle, Upper, and Terminal Neoprotozoic (Riphean)... . . . . . 379 379 383 388 389 XII Contents II. Global Tectonics in the Light of Precambrian Geology...of geologic evolution. Stratigraphic Units 9 II. Division of the Precambrian 1. Stratigraphic Units...(1977 b) Zimbabwe, environs of town of Selukwe Madagascar, Behar Tonalite granite Rb-Sr 3420 ± 60 Moorbath |  | Clemens, J.D., Donaldson, C., Frost, C.D., Kisters, A.F.M., Moyen, J.-F., Rushmer, T., Stevens, G. - Eds. (2010) Sixth Hutton Symposium on the origin of granites and related rocks: proceedings of a symposium held in Stellenbosch, South Africa, 2-6 July 2007. GSA Special Paper 472. Geological Society of America | Report (issue) | | (pbk.) 1. Granite--Congresses. I. Clemens, John D. II. Title. QE462.G7H88 2007 552’.3--dc22 2010027738...flood basalt provinces.”) 10 9 8 7 6 5 4 3 2 1 ii CONTENTS J. D. CLEMENS Preface v Sharad MASTER...Four-stage building of the Cambrian Carion pluton (Madagascar) 133 Keith BENN Anisotropy of magnetic susceptibility...volume. Focusing on a crudelyzoned pluton in Madagascar, Razanatseheno et al. provide structural and...for his descriptions of Vesuvius and the Eifel District of Germany, studied Anderson’s samples of the |  | | Book (volume) | | l'Introduction du III j’annonçais que l’abondance II, me forçait à augmenter le nombre des volumes prévus...2 Cassure conclioïdale. Dureté. Fragile 1, S. ii basse température, plus cohérente au voisi- nage...00130. Composition chimique. La formule IF suivante II ; = 11,1. O = O correspond à la composition...marcasite heurtant au sol, ces (t. (593, lîg. II, p. grêlons se brisent souvent, et 17 et 18). ...avec une égale 1895, II, facilité dans toutes les directions parallèles ii la dans une direction |  | | Book (volume) | | F notice of reviewers. sellers after World War II tiny the small cities were of their tion of...several works wrote below. extensive to Rudolph II to his best 292-3; sec to appointment (1552-1612)...to tp; & list of gemstones here various on II; commendations; Rudolph authors; in 2 text limited...foreword feet DBI Dizionario dbl double FY DC District of Columbia G, DE Delaware GA Georgia dec...Mexico. DE MEMOIRES QUI EN Paris. 1816-, DE MADAGASCAR. Tananarive. BOSTON L’EXPLO RATION DES RECUEIL |
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