 | | | | hosted in the now-eroded rocks above the Yanque mine site. Zinc-rich solution migrated through the sedimentary...Soler, 1991; Perelló et al., 2003). More than 30 mineral deposits and prospects with porphyry copper-style...remnants of galena and barite (Fig. 1). At the Yanque mine, the rock types of the lower part of the Mara Formation...roundedsubrounded shape; biotite is the main mafic mineral. The tonalite is slightly silicified, with moderate...all samples to obtain information on the bulk mineral assemblages, using the following instruments: (1) |  | | Journal (article/letter/editorial) | | hosted in the now-eroded rocks above the Yanque mine site. Zinc-rich solution migrated through the sedimentary...Soler, 1991; Perelló et al., 2003). More than 30 mineral deposits and prospects with porphyry copper-style...remnants of galena and barite (Fig. 1). At the Yanque mine, the rock types of the lower part of the Mara Formation...roundedsubrounded shape; biotite is the main mafic mineral. The tonalite is slightly silicified, with moderate...all samples to obtain information on the bulk mineral assemblages, using the following instruments: (1) |  | | Book | | editors Roland Oberhänsli, Potsdam, Germany Maarten J. de Wit, Port Elizabeth, South Africa François M. Roure...Pedro Oyhantçabal Departamento de Geodinámica Interna Universidad de la República Montevideo Uruguay...Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires (IGEBA) CONICET-Universidad de Buenos...deposits in the Sierras v vi Preface Australes de Buenos Aires in Argentina and correlated them with...pre-Devonian strata in the lengthy stretch between the Río de la Plata and Pernambuco, of which some are probably |
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