 | | Journal (article/letter/editorial) | | Supergene gold enrichment in the Castromil-Serra da Quinta gold deposit, NW Portugal C. CRUZ1,2,*, F. NORONHA2...the University of Porto, Portugal Institute of Earth Sciences â Porto Pole, Portugal Medgold Resources...Resources Corp, Portugal Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia...metasediments occur in the northwestern part of Portugal. Most of these deposits were mined by the Romans...II AD) as open pits and surface galleries. The Castromil-Serra da Quinta gold deposit is an important example |  | | Journal (article/letter/editorial) | | (sphalerite and galena), and Fe-hydroxides (mainly goethite). The host rock is dolomite that can be locally...orogenic gold mineralisation in the castromil prospect, Northwest Portugal Cameron L. Hooper1*, Gawen R.T...UK (ch287@le.ac.uk) 2 Medgold Resources Corp, Portugal In NW Iberia, orogenic gold mineralisation occurs...2000). In the case of the Castromil prospect located East of Porto, Portugal, the Castello de Paiva granite...to investigate the nature of mineralisation at Castromil in order to better understand the gold paragenesis | | | Journal (article/letter/editorial) | | the Neves-Corvo deposit, Iberian Pyrite Belt, Portugalâ (Carvalho et al., 2018) which was the keynote...sphalerite, goethite and hematite, Ge is found mainly in willemite, and In occurs in goethite and hematite...magmatic-hydrothermal system of Borralha, northern Portugalâ, Bobos et al. (2018) show how chlorite compositions...âSupergene gold enrichment in the Castromil-Serra da Quinta gold deposit, NW Portugalâ (Cruz et al., 2018) shows...magmatic-hydrothermal system of Borralha, northern Portugal. Mineralogical Magazine, 82, xxxâyyy. Bowles |  | | Book | | MINERAL RESOURCES OF PORTUGAL Text prepared by LuĂs PlĂĄcido Martins CONTENTS 5 7 11 19 20 21...MINING BACKGROUND HISTORICAL OVERVIEW OF MINING IN PORTUGAL PRECIOUS METALS Galicia - TrĂĄs-os-Montes Zone...Business in Portugal KEY REFERENCES 3 PREAMBLE A complex and diversified geology endows Portugal with a...ornamental stones and some other mineral substances. Portugal is presently one of the main UE producers of copper...sulphide deposits like Neves-Corvo and Aljustrel, in Portugal, Rio Tinto, Sotiel, Los Frailes, Las Cruces, etc |  | de Oliveira, D. P. S., Robb, L. J., Inverno, C. M. C., Charlesworth, E. G. (2007) Metallogenesis of the SĂŁo Martinho and Mosteiros Gold Deposits, Tomar Cordoba Shear Zone, Portugal. International Geology Review, 49 (10) 907-930 doi:10.2747/0020-6814.49.10.907 | Journal (article/letter/editorial) | | Mosteiros Gold Deposits, Tomar Cordoba Shear Zone, Portugal a a b D. P. S. de Oliveira , L. J. Robb , C...Mosteiros Gold Deposits, Tomar Cordoba Shear Zone, Portugal, International Geology Review, 49:10, 907-930...Mosteiros Gold Deposits, Tomar Cordoba Shear Zone, Portugal D. P. S. DE OLIVEIRA,1 L. J. ROBB, Economic Geology...Mineiro, Apartado 7586, 2721-866 Alfragide (Lisbon), Portugal and CREMINER, Faculdade CiĂȘncias, Univ. Lisboa...Lisboa, EdifĂcio C6, Campo Grande, 1749-016 Lisboa, Portugal AND E. G. CHARLESWORTH School of Geosciences |  | | Journal (article/letter/editorial) | | abandoned Sb-Au and As-Au mining areas, northern Portugal Paula C.S. Carvalho a,â , Ana M.R. Neiva a , Maria...Sciences, University of Coimbra, 3000-272 Coimbra, Portugal University of Aveiro, Geosciences Department,...Research Centre, Campus de Santiago, 3810-193 Aveiro, Portugal a r t i c l e i n f o Article history: Received...are also associated with Fe phases (hematite and goethite, and also lepidocrocite in stream sediments from...associated with the Valongo anticline (northern Portugal). These Au deposits are classiïŹed as Sb-Au and |  | Kouhestani, Hossein, Mokhtari, Mir Ali Asghar, Chang, Zhaoshan, Johnson, Craig A. (2018) Intermediate sulfidation type base metal mineralization at Aliabad-Khanchy, Tarom-Hashtjin metallogenic belt, NW Iran. Ore Geology Reviews, 93. 1-18 doi:10.1016/j.oregeorev.2017.12.012 | Journal (article/letter/editorial) | | oxides-hydroxides and copper carbonates, such as goethite, and malachite and azurite. 3.3. Ore mineralogy...supergene malachite, azurite, covellite, digenite and goethite. The ore minerals occur as disseminations, veinlets...of the ore zones, chalcopyrite is replaced by goethite and covellite; locally islands of relict chalcopyrite...to 1 mm in diameter and are usually replaced by goethite (Fig. 7C). Pyrite is generally irregularly distributed...of malachite, azurite, covellite, digenite, and goethite. 4. Fluid inclusion studies 4.1. Sampling and |  | | Journal (article/letter/editorial) | | CO3 (OH)2 ), hematite (Fe2 O3 ), limonite and goethite (Fe2 O3 ·H2 O), barite (BaSO4 ), gypsum (CaSO4...alkaline soils, stable phases such as hematite and goethite may occur (Arias et al., 2008). In agricultural...on arsenic and lead in soils of Castromil gold mining area, Portugal. Appl. Geochem. 19, 887â898. Forghani |  | Mehrabi, Behzad, Siani, Majid Ghasemi, Goldfarb, Richard, Azizi, Hossein, Ganerod, Morgan, Marsh, Erin Elizabeth (2016) Mineral assemblages, fluid evolution, and genesis of polymetallic epithermal veins, Glojeh district, NW Iran. Ore Geology Reviews, 78. 41-57 doi:10.1016/j.oregeorev.2016.03.016 | Journal (article/letter/editorial) | | altered to goethite in zones of as much as 40 m in width during supergene alteration and the goethite is an...inclusions. The hematite veins are altered to goethite due to supergene alteration, which is an important...intrusion in the genesis of the Castromil gold deposit, northern Portugal: Chem. Geol. 194, 201-224. 25...seligmanite, (Grn) greenockite, (Hem) hematite, (Gth) goethite. 26 ACCEPTED MANUSCRIPT Fig. 5. Photographs |  | Kouhestani, Hossein, Mokhtari, Mir Ali Asghar, Qin, Kezhang, Zhao, Junxing (2019) Fluid inclusion and stable isotope constraints on ore genesis of the Zajkan epithermal base metal deposit, TaromâHashtjin metallogenic belt, NW Iran. Ore Geology Reviews, 109. 564-584 doi:10.1016/j.oregeorev.2019.05.014 | Journal (article/letter/editorial) | | smithsonite, malachite, azurite, covellite and goethite. The mineral paragenesis of the mineralized veins...oxides-hydroxides and copper carbonates, such as goethite, malachite, and azurite. The ores at Zajkan are...smithsonite, malachite, azurite, covellite, and goethite, all of which are hosted by a quartz, sericite...Chl: chlorite, Cv: covellite, Gn: galena, Gth: goethite, Hem: hematite, Py: pyrite, Qz: quartz, Sp: sphalerite...zones, chalcopyrite is replaced by covellite and goethite; locally, skeletal textures of chalcopyrite are |  | GĂłmez-FernĂĄndez, Fernando, Vindel, Elena, MartĂn-Crespo, TomĂĄs, SĂĄnchez, Virginia, GonzĂĄlez Clavijo, Emilio, MatĂas, Roberto (2012) The Llamas de Cabrera gold district, a new discovery in the Variscan basement of northwest Spain: A fluid inclusion and stable isotope study. Ore Geology Reviews, 46. 68-82 doi:10.1016/j.oregeorev.2012.02.001 | Journal (article/letter/editorial) | | replaced by supergene covellite (Table 2), anglesite, goethite, and especially scorodite replacing arsenopyrite...temperature. The ÎŽ 18OïŹuid data obtained in northwest Portugal, Massif Central, and other gold districts in northwest...Middle Ordovician sulïŹdes metasediments Northwest Portugal Quartzâarsenopyrite gold veins in granites A...belt are restricted to the northwest of Spain and Portugal. In contrast, Sbâ Au deposits are classiïŹed as...includes several deposits in northwest/central Portugal and western Spain as syn- and post-kinematic veins |  | | Book | | Exploração Mineira Romana e a Metalurgia do Ouro em Portugal Carla Maria Braz Martins NA EUROPA ATLĂąNTICA...externa da Faculdade de Engenharia da Universidade do Porto. O seu interesse cientĂfico compreende as ĂĄreas...Agregação da Faculdade de Engenharia da Universidade do Porto. Os seus temas de interesse cientĂfico inserem-se...Auxiliar da Faculdade de Engenharia da Universidade do Porto e investigador do Centro de Investigação em Geo-Ambiente...mining and metallurgy in the Mira valley (Southwest Portugal) from Iron Age to the Middle Ages Jorge Vilhena |  | Tuduri, Johann, Chauvet, Alain, Barbanson, Luc, Labriki, Mohamed, Dubois, Michel, Trapy, Pierre-Henri, Lahfid, Abdeltif, Poujol, Marc, Melleton, JĂ©rĂ©mie, Badra, Lakhlifi, Ennaciri, Aomar, Maacha, Lhou (2018) Structural control, magmatic-hydrothermal evolution and formation of hornfels-hosted, intrusion-related gold deposits: Insight from the Thaghassa deposit in Eastern Anti-Atlas, Morocco. Ore Geology Reviews, 97. 171-198 doi:10.1016/j.oregeorev.2018.04.023 | Journal (article/letter/editorial) | | are frequently replaced by supergene hematite-goethite mixture, scorodite and jarosite. Microstructural...intrusion in the genesis of the Castromil gold deposit, northern Portugal. Chemical Geology 194, 201-224 |
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