 | | Book | | MINERAL RESOURCES OF PORTUGAL Text prepared by Luís Plácido Martins CONTENTS 5 7 11 19 20 21...MINING BACKGROUND HISTORICAL OVERVIEW OF MINING IN PORTUGAL PRECIOUS METALS Galicia - Trás-os-Montes Zone...Business in Portugal KEY REFERENCES 3 PREAMBLE A complex and diversified geology endows Portugal with a...from a lot of some other deposits producing salt, feldspar, kaolin, ball clay and fire clay, ornamental stones...stones and some other mineral substances. Portugal is presently one of the main UE producers of copper |  | | Journal (article/letter/editorial) | | of HydrothermalAlteration at the Salgadinho Copper Deposit, Portugal I. R. Plimer 1 and D. de Carvalho...Geol6gicos de Portugal, Lisboa, Portugal T h e recently discovered Salgadinho copper deposit, 7 k m N N E...E of S. Luis, Portugal is located in the southernmost linear bell of outcropping low m e t a m o r p h... Pb, As, Sb, A g a n d A u at the expense of St, K, A1 and Na. T h e great enrichment of i~ in the altered...celadonitic fluoro-muscovite with mineralisation at Salgadinho and most other deposits of the Iberian Pyrite |  | Leistel, J. M., Marcoux, E., Thiéblemont, D., Quesada, C., Sánchez, A., Almodóvar, G. R., Pascual, E., Sáez, R. (1997) The volcanic-hosted massive sulphide deposits of the Iberian Pyrite Belt. Mineralium Deposita, 33 (1) 2-30 doi:10.1007/s001260050130 | Journal (article/letter/editorial) | | ``thin-skinned'' y acrecioÂn del terreno constituõÂ do por la Zona Sudportuguesa al bloque continental paleozoico...mines closing over the last two decades. Only ®ve mine sites are still active in the belt today. Four of...FiloÂn Sur gossan by Caledonia). The only mine in Portugal is Neves-Corvo which is being worked by Somincor...The suture zone is materialized 5 along the Pulo do Lobo Zone (Fig. 1B) by a complexly imbricated sequence...(Aljustrel); CC: Canal Caveira; CH: ChancËa; CO: Cercal Odemira; FE: Feitais (Aljustrel); GA: GaviaÄo; |  | | Report (volume) | | of Selected Industrial Minerals and Ores By James K. Crowley............................................spatially associated with intrusions and volcanic rocks. Do the metals in most deposits come from magmas, or...the composition of basement crystalline rocks than do coeval igneous rocks. In the first chapter in this...value to additional exploration in this part of Portugal and to future work in similar climatological and... Pb isotope determinations of 78 whole rocks and K-feldspars from the Bandelier Tuff and associated rocks |  | | Book | | sses. 3. Geology-Spain-Congresses. 4. Geology-Portugal-Congresses. I. Dallmeyer, R. D., 1944- . II. Martinez-Garcia...Metamorphic Evolution of the South Portuguese/Pulo Do Lobo Zone J. MUNHA . . . . . . . . . . . . . . ....Espana). Breviora Geol Asturica 17 (1): 5-16 Poll K (1970) Stratigraphie und Tektonik an der Wende Siluriurn/Devon...Moniello en la zona de Amao. Trab Geol8: 109-129 Sdzuy K (1961) Das Kambrium Spaniens. T 2: Trilobiten. Abh...Abh Math-Naturwiss Kl1961 (7-8): 219-411 Sdzuy K (1971) Acerca de la correlacion del Cambrico inferior |  | | Journal (article/letter/editorial) | | conglomerate of the uppermost PQ Group. San Jorge Mine. Drillhole PG-1, 162 m; scale bar: 4 cm. (D) Sedimentary...shown that the area is highly deformed and that the mine sequence is made up of several tectonically stacked...Sotiel–Migollas, Cu and Zn–Pb rich zones are common, but do not show a well-defined distribution (Santos et al...2001; Hidalgo et al., 2003). The Aguas Teñidas Este Mine is the most significant deposit of the area. The...tectonically related. The Lomero Poyatos Mine is a pyrite mine that is nowadays being reevaluated due to |  | | Journal (article/letter/editorial) | | albite-gedrite-quartz and biotite-muscovite-plagioclase-K-feldspar-quartz + / - garnet assemblages. The present...Hatched line separating A's and B's is the Na- to K-rich leptite boundary. Younging direction is to the...some important sulphide ores; e.g. in the Falun mine. Geochemical studies of supracrustal and intrusive...gedrite, quartz and albite with minor biotite and K-feldspar are present. Accessory minerals are rutile, pyrite...change in primary textures. The rock is quartz-K-feldspar-plagioclase-phyric and contains varying amounts |  | | Journal (article/letter/editorial) | | Abstract-Quartz-eye keratophyric tuffs at Aljustrel, S. Portugal, Iberian Pyrite Belt possess unruly high, uniform...18O/‘6O results for the area of Aljustrel, South Portugal, and explores the patterns of 180-enrichment in...leave from Dep. Geologia, Fat. Ciencias de Lisboa, Portugal. sedimentary features they exhibit, and also...Southwest Spain to the Atlantic Ocean in South Portugal (-230 km) as a NW-SE trending arc around 30 km.... 1983). The Aljustral mining district, South Portugal. is located in one of the lower Carboniferous |  | Beurlen, H., Thomas, R., Melgarejo, J. C., Da Silva, J. M. R., Rhede, D., Soares, D. R., Da Silva, M. R. R. (2013) Chrysoberyl-sillimanite association from the Roncadeira pegmatite, Borborema Province, Brazil: implications for gemstone exploration. Journal of GEOsciences, 58 (2) 79-90 | Journal (article/letter/editorial) | | + H+ = chrysoberyl + quartz + sillimanite + Na + K + H2O, seems to be the most plausible to explain the...(PPB) limit 12 Junco do 13 Seridó 7°00 BRASIL Soledade Salgadinho Salgadinho Tapero á 0 20 40 km...Sn Homogeneous pegmatite (wall zone) Blocky K-feldspar + albite aplite (intermediate zone) C D Sn...consists of a medium-grained aggregate of quartz + K-feldspar + muscovite ± albite; only locally it is possible...discontinuous intermediate zone dominated by blocky K-feldspar and the intermittent quartz core. Even less frequent |  | | Journal (article/letter/editorial) | | SC Cities 36º W SA C 6º S RP PaSZ Recife K PeSZ 9º S Phanerozoic orogen Brasiliano Pan-African...NP = Borborema, Nigeria, and Cameroon provinces; K = Kalahari; RP = Rio de La Plata; SA = Sahara Metacraton;...formed by a basement of orthogneisses of the Salgadinho complex, and paragneisses with amphibolites (metavolcanics)...1.97 Ga obtained in prismatic zircons of the Salgadinho complex (Sá et al., 2002). Neves et al. (2006)...tectonites. Banded rocks consisting of interlayered K feldspar-sillimanite-quartz−bearing bitotite schist (Fig |  | | Report (volume) | | Catheart Mountain 12 5. Distribution of Na/(Na + K) and Si in the white micas from mineralized rocks...Mountain 12 7. Distribution of Si and Al1v + (Na + K) in the white micas from mineralized rocks and unmineralized...Catheart Mountain are quartz monzonite and quartz-feldspar porphyry, both of which contain mineralization...Catheart Mountain quartz monzonite and quartz-feldspar porphyry occur within the Attean Quartz Monzonite...y. by Rb-Sr dating of white mica and 465 m.y. by K-Ar dating of biotite in the Catheart Mountain area |  | | Book (volume) | | to try to list all of the mining geologists and mine managers who made these visits possible and who...who are listed. I have, therefore, not attempted to do so. Several libraries in this country have been most...the study of ore deposits; they certainly will not do all his work for him. For example, she (or he) will...again that any serious student of ore deposits must do much more in his work on any deposit in this area...geologia economica, o estudo de jazigos minerals; apesar do nosso desejo, nem tudo ihe e facilitado. Por exemplo |  | Laakso, K., Peter, J. M., Rivard, B., White, H. P. (2016) Short-Wave Infrared Spectral and Geochemical Characteristics of Hydrothermal Alteration at the Archean Izok Lake Zn-Cu-Pb-Ag Volcanogenic Massive Sulfide Deposit, Nunavut, Canada: Application in Exploration Target Vectoring. Economic Geology, 111 (5) 1223-1239 doi:10.2113/econgeo.111.5.1223 | Journal (article/letter/editorial) | | Canada: Application in Exploration Target Vectoring K. Laakso,1,†,* J. M. Peter,2 B. Rivard,1 and H. P....maximum value represents complete replacement of feldspar and volcanic glass by white micas, chlorite, or...rocks of the study area to variable dissolution of feldspar during hydrothermal alteration. However, the timing...intense alteration. The examined drill core profiles do not show visible signs of weathering that could potentially...measure of chlorite replacement of white micas and feldspar group minerals. The AI and CCPI values of the |  | Beurlen, Hartmut, Da Silva, Marcelo R. R., Thomas, Rainer, Soares, Dwight R., Olivier, Patrick (2008) Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare-element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita, 43 (2) 207-228 doi:10.1007/s00126-007-0152-4 | Journal (article/letter/editorial) | | Equador Formation. The trace-element ratios in feldspar and micas allow to classify most pegmatites as...only sporadically as byproducts of kaolin and feldspar mining and from gem quality tourmaline mining...within the Rio Grande do Norte Tectonic Domain, in the States of Paraíba and Rio Grande do Norte, in northeastern...intrusions of random distribution. Field relationships do not allow inferring any correlation between the pegmatite...these small peraluminous pegmatititic granite stocks, do not support the interpretation of this granite subtype |  | | Journal (issue) | | Claringbull, Ph.D., F.Inst.P., FGS Vice-President: R. K. Mitchell, FGA Council of Management D.J. Callaghan...Eng., FIMM, FGA I. Thomson, FGA V.P. Watson, FGA K. Scarratt, FGA: Chief Executive R.R. Harding, B.Sc...D., FGA D. G. Kent, FGA P. Sadler, B.Sc, FGS, FGA K. Scarratt, FGA E. Stern, FGA Prof. I.Sunagawa,D.Sc...alexandrite; and the list goes on. Furthermore, even when we do determine, for ISSN: 0022-1252 460 example, that...Gemology, 22, 4, 246. Treated Chalcedony. Gems Nassau, K., 1983. Gemstone Enhancement. & Co. Enhancement. Butterworth |  | | Report (issue) | | elbaite crystals with lepidolite from the Golconda Mine in Minas Gerais, Brazil by Eberhard Equit, 1993...University. All rights re served. Photo by William K. Sacco 4 By 1717 gem tourmaline was being referred...University. All rights reserved. Photography by William K. Sacco 5 For about fifty years, tourma line was...circa 1910 view of the old mine portal on the north side of the Himalaya Mine in San Diego County, CA....at as a possible gemstone, and German scientists K. Schmelzer and J. Ottemann published a paper ( 1 979) |  | | Report (issue) | | Earth & Environmental Sciences Physical Geography Do Not Remove Digitized by the Internet Archive...Stanley K. Hamilton oe J. David Lowell Ce ee of the Neves-Corvo Massive Sulfide Deposit, Portugal, and...«2. of the eccisemene of the Misima Gold-Silver Mine, Papua New Guinea ........ .G. I. Wilson and R....C. Barwick eae ie Discovery. The McLaughlin Gold Mine, Napa, Yolo, and Lake Counties, California Fre...the various kinds of ore deposits form, and where do we find new deposits. The century from 1888 to 1988 |  | | Book | | Crystal of multicolored tourmaline (84 x 26 mm), Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais...Cataloguing in Publication Data (CIP) (Camara Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious...2009. Original title: Minerais e pedras preciosas do Brasil Bibliography 1. Gemology 2. Geology 3. Minerals...Crystal of brazilianite (25 mm), muscovite and feldspar, Lin6polis, Divino das Laranjeiras, Minas Gerais...Amethyst flower (85 x 60 mm), Ametista do Sul, Rio Grande do Sul. Collection of Luiz Alberto Dias Menezes |  | | Journal (issue) | | tourmalines are also being mined in adjacent Rio Grande do Norte State. 278 pg. 261 Spessartine Garnet from...on amethyst, citrine, and ametrine from the Anahí mine, Bolivia • “Copal” resin from Madagascar • Iolite...The well-respected names on our masthead are only a K. Myers S. Overlin partial list of the many experts...Alto dos Quintos mines) in neighboring Rio Grande do Norte State have produced limited quantities of cuprian...Courtesy of K. Elawar; photo © Harold & Erica Van Pelt. briefly visited the Mulungu mine near Parelhas |  | | Journal (issue) | | Claringbull, Ph.D., F.Inst.P., FGS Vice-President: R. K. Mitchell, FGA Chairman: *D. J. Callaghan, FGA Vice-chairman:..., FRSC, FGA *P G. Read, CEng., MIEE, MIERE, FGA *K. Scarratt, FGA E. Stern, FGA *C H. Winter, FGA ^Members...D., FGA D. G. Kent, FGA R Sadler, B.Sc, FGS, FGA K. Scarratt, FGA E. Stern, FGA M. Virkkunen, M.Phil...setting Gem sapphirine is being recovered from a mine about Sapphirine is derived and obtained from rocks...Sri Lanka the gem sapphirine comes from a carats. mine located near the 9th milepost along the Abstract |  | | Book | | much biased by science with too little sense of mine for beauty) will keep his memory and work, alive...major constituents the three rock-forming minerals feldspar, quartz and mica, which in places develop mega-crystals...share of raw material extracted from pegmatites is feldspar, quartz and mica, and only a tiny fraction of...whatever angle you would like to do. Hagendorf has been mined for feldspar and the deposit is not yet exhausted...(HPPP) is not only the largest concentration of feldspar and quartz of its kind in Central Europe but also |  | | Journal (issue) | | offering courses in gem trading and educational mine tours that are open to everyone. Consumers are becoming...which includes two washplants, security set-up, mine camps and other related infrastructure. The company...and successfully building the world’s largest ruby mine in Mozambique. Dev Shetty, Fura’s president and...Diamonds Tender began in 1984. Rio Tinto’s Argyle mine is the world’s only source of these highly coveted...numerous ethnic groups. Some of these populations do not even speak Vietnamese—only their own tribal dialect |  | | Journal (issue) | | France; Rui Galopim de Carvalho, Portugal Gemas, Lisbon, Portugal; Lee A. Groat, University of British...on Petra Diamonds by Jim Davidson, (3) the Karowe mine by John Armstrong of Lucara Diamond Corp., (4) the...Gemology, 38(1), 96–99. Henn U. and Schollenbruch K., 2012. Saphirblauer Disthen (Kyanit) aus Nepal. Gemmologie:...Schollenbruch in darkfield illumination (a,b) and by K. Link in reflected light (c). a Gem Notes b c ...Switzerland References Barley M.E., Pickard A.L., Zaw K., Rak P. and Doyle M.G., 2003. Jurassic to Miocene |  | | Book | | and therefore free for general use. Typesetting: K + V Fotosatz GmbH, Beerfelden. 213213130-543210 Preface...Deposits in the Iberian Pyrite Belt G.K. STRAUSS and K. G. GRAY (With 12 Figures) ... . .. 304 Copper-Pyrite...Associated with Volcanogenic Massive Sulfides, Fukazawa Mine, Hokuroku District, Japan St.1. KALOGEROPOULOS and...South-Central Alaska: Their Characteristics and Origin M. K. SOOD, R. J. WAGNER, and H. D. MARKAZI (With 8 Figures)... A. T. 412 Sood, M. K. 422 Sotnikov, V. I. 271, 291 Spieth, V. 572 Strauss, G. K. 304 Susura, B. B. 504 |  | | Book | | A few highly potassic rocks, with 10% or more of K 2 0, are included although they would not meet the...(Dawson, 1980), and partly because kimberlite pipes do not gener alJy lend themselves to the approach adopted...Verlag, Berlin. 252 pp. DEANS, T. 1966. Economic mine ralogy of African carbonatites. 111 O . F. Tuttle...provided information Mexican section was kindly read by K. Bloomfield and on the alkaline rocks of Uruguay,...while D.R.C. Kempe, L.M. Larsen, T.F.D. Nielsen, K . Secher, H. reprints of their papers, which makes |
|
