 | | Journal (article/letter/editorial) | | PETROLOGY OF THE INTERMEDIATE-SULFIDATION PALLANCATA DEPOSIT, AYACUCHO, PERU Jorge E. GAMARRA-URRUNAGAĀ§ International...Germany Abstract Pallancata is a world-class intermediate-sulfidation epithermal deposit, hosted by upper...temperature range 250ā200 ĀŗC: pyrite, sphalerite, galena, miargyrite, pyrargyrite-proustite, chalcopyrite...cooling may be explained by decay of a Ag-rich galena precursor at deeper levels (Pb2S2āAgSbS2 solid...redistribution (stage 8, acanthite II). Keywords: Pallancata, intermediate sulfidation, epithermal, silver |  | | Journal (article/letter/editorial) | | (1) pavonite Ć¾ galena, (2) proustite Ć¾ galena, (3) boulangerite Ć¾ jordanite Ć¾ galena, (4) Ag-bearing...Ć¾ stannite, and (6) canfieldite (Te-bearing) Ć¾ galena. The assemblages and their complex intergrowths...8C 6 10. It is postulated that high-temperature galena (e.g., .300 8C) was an important precursor mineral...Ag-bearing mineral assemblages and that similar galena at depth may have released metals during cooling...tin, galena. INTRODUCTION The Andean Tin Belt (ATB) represents the largest primary Sn deposit in the |  | Chinchilla, DarĆo, Ortega, Lorena, PiƱa, RubĆ©n, Merinero, RaĆŗl, Moncada, Daniel, Bodnar, Robert J., Quesada, Cecilio, Valverde, Antonio, Lunar, Rosario (2016) The Patricia ZnāPbāAg epithermal ore deposit: An uncommon type of mineralization in northeastern Chile. Ore Geology Reviews, 73. 104-126 doi:10.1016/j.oregeorev.2015.10.026 | Journal (article/letter/editorial) | | The Patricia Zn-Pb-Ag epithermal ore deposit: an uncommon type of mineralization in northeastern...Rosario, The Patricia Zn-Pb-Ag epithermal ore deposit: an uncommon type of mineralization in northeastern...MANUSCRIPT The Patricia Zn-Pb-Ag epithermal ore deposit: an uncommon type of mineralization in northeastern...Chile, Chile. D Abstract TE The Patricia ore deposit represents an unusual example of economic Zn-Pb-Ag...structures where the ores were deposited. The deposit is divided into two blocks by a set of NNW-ESE-trending |  | | Journal (article/letter/editorial) | | dolomite). The main sulphides are pyrite, sphalerite, galena and chalcopyrite. Pyrite and sphalerite have compositional...Locally, Se and/or Te enriched minerals include galena Pb(S0.9-1Se0.1-0), hessite Ag2(Te0.9-1Se0.1-0)...concentrations for this mineral. The Puesto La Estancia deposit contains various tellurides including This is...Orientales geological province (Caminos, 1979), in the Sierra de San Luis (San Luis province, Argentina) (Fig...detection limits for trace elements measured in galena were 191 ppm for In, 150 ppm for Ge, 140 ppm for |  | Savva, N. E., Volkov, A. V., Sidorov, A. A., Kolova, E. E., Murashov, K. Yu. (2019) Primorskoe Epithermal Ag-Au Deposit (Northeastern Russia): Geological Setting, Mineralogy, Geochemistry, and Ore Formation Conditions. Geology of Ore Deposits, 61 (1) 50-73 doi:10.1134/s1075701519010069 | Journal (article/letter/editorial) | | Vol. 61, No. 1. Primorskoe Epithermal AgāAu Deposit (Northeastern Russia): Geological Setting, Mineralogy...potentially large Primorskoe epithermal AuāAg deposit is represented by three areas: the Kholodnyi, Spiridonych...Arylakh, Tidit, Perevalānoe, and other deposits. The deposit under review is located in the Kalalaga volcano-tectonic...leucocratic granite massif 400ā500 m beneath the deposit, which is exposed on the surface in the northeastern...part of the ore field. The presence of Bi-bearing galena and matildite, as well as medium- to high-temperature |  | | Journal (article/letter/editorial) | | disseminated chalcopyrite (presumably argentian)Ā± galena as the hypogene ore minerals. The most common textures...al., 2016) or intermediate-sulphidation (e.g. in Peru, Gamorra-Urrunaga et al., 2013). Although these...expense of disseminated hypogene chalcopyrite (Ā±galena) that yielded Cu and Ag atoms to form much younger...argentian chalcopyrite) or with possible pre-existing galena that is now completely absent. Very minute chalcopyrite...Ag up to 2.91 wt. % intergrown with very minute galena as seen on the SEM. Similarly, Shalaby et al. (2004) |  | | Journal (article/letter/editorial) | | sulfides such as pyrite, chalcopyrite, sphalerite, galena, and tetrahedrite/tennantite associations are another...Keywords: intermediate sulfidation; epithermal deposit; porphyry; subtype; arc; post-collisional 1. Introduction...metals for Mexico, the United States, Canada, Chile, Peru, Papua New Guinea, and Japan. Lindgren (1922, 1933)...distributions, ore and gangue mineralogy, ore and deposit morphology, magmatic affinity, tectonic and structure...sulfidation deposit characterized by oxidized sulfur valence (SO42-, n=+6) and low sulfidation deposit characterized |  | Kouhestani, Hossein, Mokhtari, Mir Ali Asghar, Qin, Kezhang, Zhao, Junxing (2019) Origin and evolution of hydrothermal fluids in the Marshoun epithermal PbāZnāCu (Ag) deposit, Tarom-Hashtjin metallogenic belt, NW Iran. Ore Geology Reviews, 113. 103087 doi:10.1016/j.oregeorev.2019.103087 | Journal (article/letter/editorial) | | fluids in the Marshoun epithermal Pbā ZnāCu (Ag) deposit, Tarom-Hashtjin metallogenic belt, NW Iran Hossein...fluids in the Marshoun epithermal PbāZnāCu (Ag) deposit, Tarom-Hashtjin metallogenic belt, NW Iran, Ore...fluids in the Marshoun epithermal PbāZnāCu (Ag) deposit, Tarom-Hashtjin metallogenic belt, NW Iran Hossein...ABSTRACT The Marshoun epithermal PbāZnāCu (Ag) deposit is located in the TaromāHashtjin metallogenic belt...veins and breccias, (2) quartz (calcite)-sphalerite-galena Ā± chalcopyrite Ā± pyrite veins and breccias, (3) |  | | Journal (article/letter/editorial) | | Complex, which also hosts the 7.1-Ma porphyryā CuāAu deposit of Bajo de la Alumbrera. The epithermal vein system...quartz, with a few percent of pyrite, sphalerite, galena and other sulphide and sulphosalt minerals. Four...owned by the National University of TucumĆ”n, the province of Catamarca and the National Government of Argentina...with grades of 137.92 g/t Ag and 7.74 g/t Au. The deposit has been described by many authors (e.g. Quartino...research has been completed using modern methods. The deposit contains a few percent of pyrite + Fe-poor sphalerite |
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