 | | Journal (article/letter/editorial) | | mine, Ireland, and the Matagentedeposit,Cerro de Pasco,Peru. The distributionof the alterationassemblages...zoneof oxidation. Thecomplexly zonedassemblages at Matagente mineareproduced by oxidation of primary ore in...BARNES agh,CountyGalway,Ireland, andthe Cerrode Pasco mine (Matagentedeposit),Peru.Studiesof thistype...threshold values for elemental concentrations were goethite(FeOOH), and barite (BaSO4),with minor available...volcanics [---I Paleozoic sediments Residual ore Oxi de ore Mixed ore MINERALIZATION Jâą manganese oxides |  | | Journal (article/letter/editorial) | | Polymetallic Zn-Pb-Ag-Cu-Bi Mineralization at Cerro de Pasco, Peru* REGINA BAUMGARTNERâ ,** LLUĂS FONTBOTĂ,...Abstract The large Cerro de Pasco Cordilleran base metal deposit in central Peru is located on the eastern...Rosa areas, located 2.5 km northwest of the Cerro de Pasco open pit and in the southern part of the deposit...Teck Cominco Peru, Psje. los Delfines 159, Las Gardenias, Santiago de Surco Lima 33, Peru. 0361-0128/08/3739/493-45...formed alunite. The hydrothermal system at Cerro de Pasco was emplaced at a shallow depth (~500 m) in |  | | Journal (article/letter/editorial) | | calcite, goethite, zeolites and some rarer minerals and are preserved due to encrustation by goethite, Fe-rich...appearance of subsurface lamentous fabrics occurring in goethiteâchalcedony fracture in lls in Tertiary volcanic...Beauty Ridge, Cady Mts., California: (a) irregular goethiteâchalcedony fracture with macroscopic laments bundles...laments; (c) bundles of laments encrusted with goethite and quartz showing vertical orientation due to...Priday Ranch, Oregon, USA Needles, Texas, USA Sierra de Gallego, Chiuahua, Mexico Deccan Trapps, India Arz |  | | Journal (article/letter/editorial) | | Mountains, California Madras area, Oregon, USA Ojo de la Laguna, Chihuahua, Mexico ParanĂ Basin, Brazil...Tertiary basalt I 50Âș26N, 12Âș42E Quartz, goethite I, M 50Âș55N, 13Âș20E 50Âș46N, 7Âș57E 30Âș54N...5S, 76Âș10.5W Quartz, goethite Goethite Goethite Duftite Chrysocolla Goethite I, I, I, I I, I, 31Âș58S...31Âș58S, 141Âș28E Goethite, coronadite, quartz I, PS, U 37Âș19N, 13Âș35E Calcite-encrusted filaments...Morocco Tsumeb, Namibia Ray, Arizona Matagente, Cerro de Pasco, Peru Broken Hill, New South Wales, Australia |  | | Report (issue) | | eoltlelearniaiaiaintaletetelvieiaialata eremeleie Cerro: de) Mercado: -DUrango \siale «+ \eoTarerelaiale ...sieve Gamizgal, (Gane Carahuacra Casapalical Cerro eos eeeee eooeeresr eer oe eeeeeeeoeeeeeeeeeeeeene...eoe eeoeeeereoeseoeeeereeeeeeeeeeseeeeoe Rare de == aq no nocnoo0 ou Gounod do podouomadoooD ....eoeeereoeeeceoecoer eee se eeeeoseerseeseeoeee Pasco Colquijirca ..e.ece ..s.c.ce- eee eeeeeeeeeeoeeee... 1971, p. 215-225 The Bolivian tin-silver province: Econ. Geol., v. 66, ABSTRACT These bibliographies |  | | Report (chapter) | | wealth of South America. For example, at the Matagente mine, Peru, argentiferous plumbojarosite in pockets...simultaneously by Norzink AS (Steintveit 1965), Asturiana de Zinc (Sitges and Arregui 1964), and the Electrolytic...Front Range mineral belt, Colorado, and Nicholas and de Rosen (1963) included natrojarosite and gorceixite...alteration product in alunitized volcanic rocks at Casale de Mezzano, Italy, and Nekrasov and Nikishova (1987)...that the minerals, regardless of rate, alter to goethite. Thus, in gossans, such as those of the Iberian |  | | Book | | . 11 Apropos du rdle metallogenique de la prkipitation et de Iâadsorption skdimentaires .. . . .. ...pr6visionnelles a la recherche4 des gisements stratiformes de plomb P. NIC~LINI (Paris, France) ... . . . . . ... 107 etude sMimentologique du minerai de fer oolithique de Lorraine L. BUBENICEK (Maizitres-les-Metz...Sedimentologie et recherche des gisements ddimentaires marins de phosphate M.SLANSKY(Paris, France). . . .. ... ..... . . . . . . . . . . . . . . . . . 165 Rapport de synthkse P.R~UTHIER (Paris, France). . . . . . |  | | Report (volume) | | of the structural classification suggested by Lima-de-Faria (1994) and recommended by the Subcommittee...Program of the United States Department of Energy grant DE-FG07-97ER14820 to PCB, and by the National Science...41:558-564 Borene J (1970) Structure cristalline de la parabutlerite. Bull Soc franc MinĂ©ral Cristallogr... Pulou R, Sempere R (1984) Structure cristalline de la langite, Cu4(SO4(OH)6H2O)H2O. Bull MinĂ©ral 107:641-648...Ginderow D, Cesbron F (1979) Structure cristalline de l'aubertite, AlCuCl(SO4)2(H2O)14. Acta Crystallogr |
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