2000
DOI: 10.1016/s0895-9811(00)00017-1
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The link between hydrothermal epigenetic copper mineralization and the Caçapava Granite of the Brasiliano Cycle in southern Brazil

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Cited by 66 publications
(46 citation statements)
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“…The concentration of both metals in the water is related to their concentration in the soil (Minella et al, 2007). The highest Fe concentration in the water near the city of Caçapava do Sul is probably due to copper mining, which provokes erosion of hematite (an iron ore) (Remus et al, 2000). Water Fe (near the City of Caçapava do Sul) and Mn levels are within the range previously observed by other studies (Reginato et al, 2012;Kochhann et al, 2013;Weber et al, 2013 ), but the pH must be neutral or slightly alkaline (Steffens et al, 1993).…”
Section: +supporting
confidence: 59%
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“…The concentration of both metals in the water is related to their concentration in the soil (Minella et al, 2007). The highest Fe concentration in the water near the city of Caçapava do Sul is probably due to copper mining, which provokes erosion of hematite (an iron ore) (Remus et al, 2000). Water Fe (near the City of Caçapava do Sul) and Mn levels are within the range previously observed by other studies (Reginato et al, 2012;Kochhann et al, 2013;Weber et al, 2013 ), but the pH must be neutral or slightly alkaline (Steffens et al, 1993).…”
Section: +supporting
confidence: 59%
“…The city of Caçapava do Sul and the western region of the state contain reserves of calcite and/or dolomite minerals (Brasil, 1973;Remus et al, 2000;Oliveira & Kerber, 2009), which can explain the high water hardness values of the water near these cities. Mean values observed in this study were similar to those previously found in the northern region of this state .…”
Section: Discussionmentioning
confidence: 99%
“…Nevertheless, the partial recrystallization, or new growth of some of these zircon crystals during metamorphism requires detailed backscattered electron (BSE) and cathodoluminescence (CL) studies of the internal structure of the crystals (e.g. Hanchar & Miller 1993, Vavra et al 1999, Remus et al 1999, Remus et al 2000a, b, Silva et al 1999 in order to identify the different growth events preserved in the zircon crystals. The use of the high spatial resolution (30 mm) capability of the sensitive high-mass resolution ion microprobe (SHRIMP), as demonstrated by Friend and Kinny (1995) and Hartmann et al (1999a), may be necessary to reach geologically meaningful results from zircon crystals from high grade terrains.…”
Section: Introductionmentioning
confidence: 99%
“…Os granitos neoproterozóicos, os quais abrangem os granitos Caçapava do Sul (Remus et al 2000), Lavras do Sul (Nardi & Lima 2000), Ramada (Naime & Nardi 1991), São Sepé (Mattos et al 2004), além do batólito Pelotas (Phillipp & Machado 2001), têm como minerais acessórios zircão, apatita, turmalina, granada, titanita, anfibó-lio, epídoto e fluorita. Segundo Morton (1985), anfibólio, epídoto e titanita são minerais instáveis em condições diagenéticas de grande profundidade (fluidos alcalinos), enquanto que granada e apatita são estáveis e turmalina e zircão são ultraestáveis.…”
Section: Estatísticaunclassified