 | de Abreu Cunha, Ioná, Misi, Aroldo, Babinski, Marly, Iyer, Sundaram Sankara S. (2007) Lead isotope constraints on the genesis of Pb–Zn deposits in the Neoproterozoic Vazante Group, Minas Gerais, Brazil. Gondwana Research, 11 (3) 382-395 doi:10.1016/j.gr.2006.02.008 | Journal (article/letter/editorial) | | Pb–Zn deposits in the Neoproterozoic Vazante Group, Minas Gerais, Brazil Ioná de Abreu Cunha a , Aroldo Misi...Universidade Federal da Bahia, Salvador, BA 40210-340, Brazil Centro de Pesquisas Geocronológicas, Instituto...Rua do Lago, 562, São Paulo, CEP 05508-080, SP, Brazil c Department of Physics and Astronomy, University...Neoproterozoic Vazante Group at the western border of the São Francisco Craton, Brazil, hosts the largest...from four deposits located along the 300 km N–S Vazante–Paracatu–Unai linear trend. Pb isotope ratios indicate |  | Oliver, Nicholas H.S., Thomson, Brian, Freitas-Silva, Flavio H., Holcombe, Rodney J., Rusk, Brian, Almeida, Bruna S., Faure, Kevin, Davidson, Garry R., Esper, Eldrick L., Guimarães, Paulo J., Dardenne, Marcel A. (2015) Local and Regional Mass Transfer During Thrusting, Veining, and Boudinage in the Genesis of the Giant Shale-Hosted Paracatu Gold Deposit, Minas Gerais, Brazil. Economic Geology, 110 (7) 1803-1834 doi:10.2113/econgeo.110.7.1803 | Journal (article/letter/editorial) | | Giant Shale-Hosted Paracatu Gold Deposit, Minas Gerais, Brazil* Nicholas H.S. Oliver,1,2,† Brian Thomson...Andar, Cruzeiro, Belo Horizonte – MG 30130-009, Brazil 4 Instituto 5 School de Geociências, Universidade...Universidade de Brasília, Brasília DF, 70910-900, Brazil of Earth Sciences, University of Queensland, St Lucia...understand the genesis of the Paracatu deposit in Brazil, a shallow-dipping, bulk-tonnage, vein-style low-grade...thrusting. Introduction The Paracatu gold deposit in Brazil, also known as Morro do Ouro (“Hill of Gold”), |  | Cordeiro, Pedro F.O., Oliveira, Claudinei G., Paniago, Luiz N., Romagna, Glacir, Santos, Roberto V. (2018) The carbonate-hosted MVT Morro Agudo Zn-Pb deposit, central Brazil. Ore Geology Reviews, 101. 437-452 doi:10.1016/j.oregeorev.2018.08.002 | Journal (article/letter/editorial) | | carbonate-hosted MVT Morro Agudo Zn-Pb deposit, central Brazil Pedro F.O. Cordeiro, Claudinei G Oliveira, Luis...carbonatehosted MVT Morro Agudo Zn-Pb deposit, central Brazil, Ore Geology Reviews (2018), doi: https://doi.org/10...carbonate-hosted MVT Morro Agudo Zn-Pb deposit, central Brazil Pedro F. O. Cordeiro1,2, Claudinei G Oliveira3...Curitiba, Brazil 3 Universidade de Brasília, Brazil 4 Agência Nacional de Mineração, Brasília, Brazil 5 Nexa...known Mississippi-Valley Type deposit (MVT) in Brazil with original estimated reserves of 18.3 Mt @ 5 |  | 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) | | Torlon, Guatemala; 11 = Accha, Peru; 12 = Vazante, Brazil; 13 = Tynagh and Silvermines, Ireland; 14 =...Qiandong Shen Shen 689 New York, USA Brazil Balmat Vazante Hypogene nonsulfide zinc Isa/sedex VMS...dolostone by smithsonite with minor hematite. Tucson mine, Leadville district, Colorado, United States. b...Massive smithsonite replacing limestone. Wolftone mine, Colorado, United States. c. Coarsely crystalline...hemimorphite cementing goethitic dolostone clast, Vazante deposit, Brazil. j. Massive sauconite (zinc-bearing smectite) |  | | Journal (article/letter/editorial) | | Abstract Brazil has been a major but intermittent producer of gold since its discovery in 1500. Brazil led...hosted in Archean rocks produced 66% of the gold in Brazil, whereas deposits in Paleoproterozoic and Neoproterozoic...MinisteÂrio de Minas e Energia, Secretaria de Minas e Metalurgia, BrasõÂ lia, Brazil E.A. Ladeira Rua...Muzambino 355/404, Belo Horizonte, Minas Gerais 30310-280, Brazil Deposits in metamorphosed sedimentary...importance. The Archean and Paleoproterozoic terranes of Brazil largely lack base-metal-rich volcanogenic massive |  | | Journal (article/letter/editorial) | | Furnace mine Franklin Marble West limb -47 30 East limb Pike's Peak mine Longshore mine 65 Franklin...banding and foliation Lithologic contact Historical mine that produced magnetite 500 0 meters FIG. 3....evaluated as an iron resource when the Franklin zinc mine closed (Stockwell, 1951). The Furnace bed is a layer...garnet appear in the upper levels of the Franklin mine adjacent to crosscutting pegmatite bodies. A partial...the Furnace bed contains substantial calcite, ankerite (CaFe[CO3]2) may be a more likely protolith carbonate |  | Giuliani, G., Olivo, G.R., Marini, O.J., Michel, D. (1993) The Santa Rita gold deposit in the Proterozoic Paranoá Group, Goiás, Brazil: An example of fluid mixing during ore deposition. Ore Geology Reviews, 8 (6) 503-523 doi:10.1016/0169-1368(93)90042-w | Journal (article/letter/editorial) | | deposit in the Proterozoic Parano i Group, Goi ts, Brazil: An example of fluid mixing during ore deposition...Autarquias Norte, Quadra 1, Bloco B, 70040 Brasilia DF, Brazil dEcole Nationale Sup~rieure de G~ologie, B.P. 452...ABSTRACT The Santa Rita gold deposit (Central Goi~is, Brazil) is hosted by Middle to Upper Proterozoic carbonate-pelite...proposed. Introduction The State of Goi~is in Central Brazil hosts several gold mining districts which are locate*Present...SANTARITAGOLDDEPOSIT,PROTEROZOICPARANO~.GROUP,GOIAS,BRAZIL mineralized structures are characterized by multi-stage |  | O, Chung-Nam, Pak, Ung-Ho, Choe, Kwang-U, Ryang, Do-Jun, Kim, Kwang-Min, Sim, Hak-Chol, Jo, Yong-Il, Ryang, Un-Jin (2020) Genesis of the Songhung gold-polymetallic deposit in the Hoechang district, the Democratic People’s Republic of Korea: Constraints from Geology, Petrochemistry and Pb–S–C–O isotope geochemistry. Ore Geology Reviews, 116. 103250 doi:10.1016/j.oregeorev.2019.103250 | Journal (article/letter/editorial) | | sometimes aggregates intergrown with pyrrhotite and ankerite. Most of the coarse–grained pyrites have a cracking...pyrrhotite as well as minor ankerite, siderite and native gold. The ankerite occurs as a veinlet in the...gold. Here, native gold did not crystallize with ankerite, but the favorable regime for precipitation of...by interaction between ore–forming fluid and the ankerite when auriferous fluid is transferred content in...2–3 along the contact of ankerite. The ore bodies are dominated by the ankerite and siderite instead of |  | Bérubé, Charles L., Olivo, Gema R., Chouteau, Michel, Perrouty, Stéphane, Shamsipour, Pejman, Enkin, Randolph J., Morris, William A., Feltrin, Leonardo, Thiémonge, Raphaël (2018) Predicting rock type and detecting hydrothermal alteration using machine learning and petrophysical properties of the Canadian Malartic ore and host rocks, Pontiac Subprovince, Québec, Canada. Ore Geology Reviews, 96. 130-145 doi:10.1016/j.oregeorev.2018.04.011 | Journal (article/letter/editorial) | | biotite, muscovite, calcite, ferroan-dolomite, ankerite, pyrite, 139 and rutile ± epidote assemblages...1939. The geology of the Canadian Malartic gold mine, N. 835 Quebec. Economic Geology 34, 495–523....Canadian Malartic 862 Property. Technical Report. Mine Canadian Malartic (2014). 863 Guo, G., Wang, H...modeling of two willemite 899 deposits, Vazante (Brazil) and Beltana (Australia), in: SEG Techni- ...deposits: A case 917 study of the Vazante zinc deposits, Minas Gerais, Brazil. Journal of Ap- 918 plied Geophysics |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph taken...Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo, Andrea...3. Minerals - Brazil 4. Minerals- Classification 5. Mineralogy 6. Mineralogy - Brazil - History 7. Precious...Precious stones - Brazil I. Bartorelli, Andrea. II. Title. 09-10025 Cover photograph: Crystal of brazilianite |  | | Journal (article/letter/editorial) | | and zones were mapped based on the presence of ankerite, oligoclase, biotite, amphibole, and diopside...chlorite zone with similar temperatures for the ankerite-albite zone up to 525-575°C in the diopside and...the lowest 15 metamorphic grades (chlorite, ankerite, biotite) to separate lithological distinctions...carbonates either as minor components in calcite or as ankerite (Figs. 7d, EA-7d). Almost all of the psammites...this signal was not simply due to the presence of ankerite in samples, which has been suggested as a screening |  | Doyle, Katherine A., Poulton, Simon W., Newton, Robert J., Podkovyrov, Victor N., Bekker, Andrey (2018) Shallow water anoxia in the Mesoproterozoic ocean: Evidence from the Bashkir Meganticlinorium, Southern Urals. Precambrian Research, 317. 196-210 doi:10.1016/j.precamres.2018.09.001 | Journal (article/letter/editorial) | | iron carbonate (FeCARB; including siderite and ankerite), ferric iron (oxyhydr)oxide minerals (FeOX; including... 2008; Lyons et al., 2000), the 1.1 Ga Vazante Group, Brazil (Geboy et al., 2013), and the 1.1 Ga Taoudeni...of Proterozoic glacial deposits in the Vazante Group, Brazil. Precambrian Research. 238,pp.199–213. Giese...2009. Iron oxyhydroxide coating of pyrite for acid mine drainage control. Applied Geochemistry. 24(9),pp |  | Boni, M., Gilg, H. A., Aversa, G., Balassone, G. (2003) The "Calamine" of Southwest Sardinia: Geology, Mineralogy, and Stable Isotope Geochemistry of Supergene Zn Mineralization. Economic Geology, 98 (4) 731-748 doi:10.2113/gsecongeo.98.4.731 | Journal (article/letter/editorial) | | regardless of crystal morphology, position, and mine location (avg. 27.4 ± 0.9‰). This homogeneity points...Their characteristics were described in several mine reports (e.g., Münch and Siebdrat, 1960) and their...of the exploitation owing to the instability of mine workings, the ore grade was always higher, the oxidation...secondary sulfides were also known. At the Sa Duchessa mine, where the primary sulfides (chalcopyrite and sphalerite)...underground mining sites. Other specimens were sampled in mine dumps and from private collections. Up to 35 samples |  | | Book | | On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298...ALLEN, GEORGE B. --and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE...Allgood, C. Williams: Ramsdellite from the Mistake mine [Arizona] 14:333-335 ALLGOOD, ROBERT W. -with G...the Mistake mine [Arizona] 14:333-335 ALMA Famous mineral localities: the Home Sweet Home mine, [near Alma |  | Cazarin, C.L., van der Velde, R., Santos, R.V., Reijmer, J.J.G., Bezerra, F.H.R., Bertotti, G., La Bruna, V., Silva, D.C.C., de Castro, D.L., Srivastava, N.K., Barbosa, P.F. (2021) Hydrothermal activity along a strike-slip fault zone and host units in the São Francisco Craton, Brazil – Implications for fluid flow in sedimentary basins. Precambrian Research, 365. 106365pp. doi:10.1016/j.precamres.2021.106365 | Journal (article/letter/editorial) | | zone and host units in the São Francisco Craton, Brazil – Implications for fluid flow in sedimentary basins...Center (CENPES), 21.941-915, Rio de Janeiro, RJ, Brazil Department of Geology and Geochemistry, Vrije Universiteit...University of Brasília, 70297-400 Brasília, DF, Brazil d Department of Geology, Federal University of...of Rio Grande do Norte, 59078-970 Natal, RN, Brazil e Department of Geoscience and Engineering, Delft University...of Campina Grande, 58428-830 Campina Grande, PB, Brazil b A R T I C L E I N F O A B S T R A C T Keywords: |  | | Book (volume) | | Aphebian State of Goias 1/2] Cedro do Abaeté Minas Gerais 1/23 Occurrences within folded and metamorphic...Proterozoic and Cambrian phosphorites — regional review: Brazil 1/16 M.A. DARDENNE, R. TROMPETTE, L.F. MAGALHAES...Palaeogeographic evolution of the Bambui Group in central Brazil /20 Phosphorite occurrences and deposits /2/ Occurrences...Madhya Pradesh, India 246 Patos de Minas/Lagamar, Minas Gerais, Brazil 246 East Fork District, Sevier County...Madhya Pradesh, India 254 Patos de Minas—Lagamar, Minas Gerais, Brazil 255 Sevier County, Tennessee Kakul |  | | Book (edition) | | Salinas, Peru, H Variscite, xx 5 mm, Iturnbiara, Brazil, H Rhodocbrosite, polished, 50 mm, Capillitas,... China, H Page 1: MuscO\ite. 45 mm, Linopolis, Brazil, H Page 2: Vivianite, I 00 mm, Huanzala, Bolivia...Brazilianite, 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed...Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]•6HzO...Harding Co .. South Dakota. and at the Fuemrole No2 mine, Emery co .. Utah. Also at Menzenschwand Scbwarzwald |  | | Journal (article/letter/editorial) | | Ancylite Andalusite Anglesite Anhydrite Anilite Ankerite Annabergite Anorthite (Ca end member plagioclase)...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...you look for a mine look near a mine”. This includes the imperative “if you look for a mine look for smelting...gold-bearing quartz veins in the southern Para State, Brazil (Angelica et al., 1997). Chromium muscovite named...conglomerate-hosted U deposits of the Randtype at Jacobina, Brazil (pers. com. P. Laznicka). Chromium-bearing garnet | | | Journal (article/letter/editorial) | | Ancylite Andalusite Anglesite Anhydrite Anilite Ankerite Annabergite Anorthite (Ca end member plagioclase)...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...you look for a mine look near a mine”. This includes the imperative “if you look for a mine look for smelting...gold-bearing quartz veins in the southern Para State, Brazil (Angelica et al., 1997). Chromium muscovite named...conglomerate-hosted U deposits of the Randtype at Jacobina, Brazil (pers. com. P. Laznicka). Chromium-bearing garnet |  | | Journal (article/letter/editorial) | | Willemite-rich ores (Beltana, Australia; Vazante, Brazil; Berg Aukas, Namibia, Kabwe, and Star Zinc...characterized by patchy yellow dolomite and/or ankerite alteration. The topmost part of this unit is generally...Exploración y Geología. Lima, Instituto de Ingenieros de Minas del Perú, Volumen Luis Hoschschild Plaut, p. 245–250 |  | | Journal (article/letter/editorial) | | has been more usefully applied to exploration and mine development in the Witwaterstrand basin than the...present as a constituent of calcite, dolomite, ankerite, and kutnahorite. During metamorphism, decarbonation...Age of host rocks Major minerals Resource Vazante Brazil Structurally controlled Neoproterozoic Wil...Wil, Sph, Frn 28.5 Mt at 18% Zn Ariense (Masa) Brazil Structurally controlled Neoproterozoic Wil,...alteration of Paleoproterozoic manganese ore in Wessels mine, Kalahari manganese field: South African Journal |  | | Journal (article/letter/editorial) | | isotope stratigraphy of the Vazante Formation, São Francisco Basin, Brazil. Precambrian Research 112,...Neoproterozoic cap carbonates in the Araras Group, Brazil. Gondwana Research 13, 469–479. de Alvarenga, C...Marinoan-age glacial diamictites in the Paraguay Belt, Brazil. Precambrian Research 131, 1–21. Derry, L.A., Kaufman...palaeohydrological significance of shallow burial calcite and ankerite cements in Middle Jurassic strata on the East |  | | Book | | sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...accumulated in endocontact stockworks. The small Jessie mine in the Breckenridge field (about 2 t Au; Lovering...cover sequences, and 1034 Fig. 28-14. Jessie gold mine, Breckenridge, Colorado. LITHOTHEQUE, after Ransome...stockwork hematite, magnetite, chalcopyrite, quartz, ankerite and garnet in the endocontact of a syenite stock |  | | Book | | sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...joints ~~jr-*~z?Z. Joint pattern ί Quarts veins ft Mine; fr-iron, Cwcefiper, m U.S. Homestead mmmww** Vehicle...accumulated in endocontact stockworks. The small Jessie mine in the Breckenridge field (about 2 t Au; Lovering...parallel fissures and veinlets Fig. 28-14. Jessie gold mine, Breckenridge, Colorado. LITHOTHEQUE, after Ransome |  | | Report (issue) | | must know not only in which direction a particular mine opening should be extended to continue in an ore...changing as the advance of technology permits us to mine or process minerals that were once too low in grade...technologic advances will make it profitable to mine resources that would be much too costly to produce...are at least a few prematurely deserted mills and mine installations built on the expectation of finding...Liberia, Sierra Leone, South-West Africa, Tanzania, Brazil, Guyana, India, Indonesia, and Venezuela. Diamond |
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