 | | Journal (article/letter/editorial) | | pp. 267–289 The Nonsulfide Zinc Deposit at Accha (Southern Peru): Geological and Mineralogical Characterization...Canada Abstract The Accha-Yanque zinc belt is located in the southern Altiplano of Peru, a major zinc-rich...zinc-rich metallogenic province hosting a number of economic mineral deposits (porphyry copper and skarn ores)...Primary ores belong to the carbonate replacement deposit type and are at least in part structurally controlled...mineralization is almost fully oxidized: the Accha deposit can be assigned to both direct replacement and |  | | Journal (article/letter/editorial) | | Zn-clays in nonsulfide supergene ores of southern Peru Nicola Mondillo1,*, Fernando Nieto2 and Giuseppina...Zn-clays from nonsulfide ore deposits of Accha and Yanque (Peru) was carried out, to properly determine...other similar) deposits. The Zn-clays occurring at Accha and Yanque are constituted by a mixture of sauconite...confirm the supergene origin for the bulk of the deposit. Keywords: Sauconite, Zn-beidellite, nonsulfide...(Namibia)—the largest supergene nonsulfide zinc deposit in the world (original reserves of 24.6 Mt ore |  | | | | Yanque Prospect (Peru): From Polymetallic Zn-Pb Mineralization to a Nonsulfide Deposit N. Mondillo,1,†...Milano, Italy Abstract The Yanque nonsulfide Zn-Pb deposit (26,491 kilotonnes of indicated resources at 2...the Andahuaylas-Yauri metallogenic province, southern Peru. The deposit occurs in a base metal district...district, with the Dolores porphyry copper deposit at its center. Sedimentary and igneous rocks predominate in...quartz diorite/monzonite porphyry). The Yanque deposit is hosted by two different sedimentary facies consisting |  | | Journal (article/letter/editorial) | | Yanque Prospect (Peru): From Polymetallic Zn-Pb Mineralization to a Nonsulfide Deposit N. Mondillo,1,†...Milano, Italy Abstract The Yanque nonsulfide Zn-Pb deposit (26,491 kilotonnes of indicated resources at 2...the Andahuaylas-Yauri metallogenic province, southern Peru. The deposit occurs in a base metal district...district, with the Dolores porphyry copper deposit at its center. Sedimentary and igneous rocks predominate in...quartz diorite/monzonite porphyry). The Yanque deposit is hosted by two different sedimentary facies consisting |  | | Journal (article/letter/editorial) | | Deposits in South-Eastern Peru: those from polymetallic protores 6.2.1. Accha – real calamine? 6.2.2. Yanque...(Mississippi Replacement Deposit) of the polymetallic type. SC RI Valley-type) deposit, or a SEDEX (Sedimentary...(smithsonite-cerussite-calcite). The oxygen isotope variation of the individual carbonate minerals within a deposit is relatively...is dependent on the geological setting of each deposit, as well as on its mineralogy. Host-rock composition...“Calamines”, good examples are Hakkari (Turkey) and Accha (Peru). Other deposits, such as Angouran (Iran) and |  | Hitzman, M. W., Reynolds, N. A., Sangster, D. F., Allen, C. R., Carman, C. E. (2003) Classification, Genesis, and Exploration Guides for Nonsulfide Zinc Deposits. Economic Geology, 98 (4) 685-714 doi:10.2113/gsecongeo.98.4.685 | Journal (article/letter/editorial) | | deposits are the most common type of nonsulfide zinc deposit and are distributed worldwide. The vast majority...classification, suggests genetic models for the different deposit types, and discusses exploration guidelines. 685...franklinite-willemitezincite ± gahnite. All of these deposit types occur primarily in carbonate rocks, although...exploration methods need to be tailored to each. Each deposit type has a characteristic and distinctive mineralogy...understanding of the relationship of mineralogy to deposit type may significantly aid in exploration targeting |  | | Journal (article/letter/editorial) | | The Capricornio epithermal gold–silver–copper deposit, in the Region II, Chile, consists of multiple...caused the deposition of the far greater El Peñon deposit, in which individual mineralised shoots range from...before the onset of the hyperarid period. In this deposit, secondary electrum, which typically consists... Econo. Geolo., 103, 851–864. The Amikoq PGE deposit – tectonic fragments of an archaean-layered mafic...generate a new model for the emplacement of the deposit. It is suggested that shear zones in basement rocks |  | | Journal (volume) | | may provide the redox environment required to deposit diamonds. Metasomatism is an ongoing process, and...WFGD. The main limestone constituting mineral is calcite (CaCO3), which can easily contain Mg2+ cations...Mg)CO3), which has a bulk structure similar to calcite with the exception of every other cation layer...Hungary Evidence for the inability of periclase-calcite based monolithic refractories to absorb alumina...Ca-dominant, was detected in the raw samples. Calcite contents are >3% in weight fractions. TA and EGA |
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