 | | Journal (article/letter/editorial) | | of HydrothermalAlteration at the Salgadinho Copper Deposit, Portugal I. R. Plimer 1 and D. de Carvalho...Servi(;os Geol6gicos de Portugal, Lisboa, Portugal T h e recently discovered Salgadinho copper deposit, 7...7 k m N N E of S. Luis, Portugal is located in the southernmost linear bell of outcropping low m e t a...celadonitic fluoro-muscovite with mineralisation at Salgadinho and most other deposits of the Iberian Pyrite...the discovery in 1975 of the Salgadinho copper deposit in southern Portugal. T h e purpose of this contribution |  | Munha, J., Barriga, F. J. A. S., Kerrich, R. (1986) High 18 O ore-forming fluids in volcanic-hosted base metal massive sulfide deposits; geologic, 18 O/ 16 O, and D/H evidence from the Iberian pyrite belt; Crandon, Wisconsin; and Blue Hill, Maine. Economic Geology, 81 (3) 530-552 doi:10.2113/gsecongeo.81.3.530 | Journal (article/letter/editorial) | | Geologia,Faculdadede Ciencias,1294 LisboaCODEX, Portugal AND R. KERRICH Departmentof Geology,Universityof...to -12 per mil. In the stockwork of the BlueHill mine,quartz(b180= 13.1-13.7%o),muscovite (•180 = 9.3-10...mineral-water fractionation equations for quartz, plagioclase,feldspars,and chlorite, as reported by O'Neil...POST-HERCYNIAN COVER I< •+1•" 1 ................. 5• B ALENTEJO FLY$CH (M•RTOLA FM IN THE LPB) FIG. 1. Geologicmapof...per rail (seeFig. 2). (For a description of the mine •18Ofiuid values.However,the preservation of a sys- |  | 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) | | 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...flows within individual members of the Bandelier Tuff do not have significant differences in their Pb isotope...Snowstorm Mountains, middle Miocene volcanic rocks do not extend to the east or west, and related mineral |  | Chen, Hui, Ni, Pei, Wang, Ru-Cheng, Wang, Guo-Guang, Zhao, Kui-Dong, Ding, Jun-Ying, Zhao, Chao, Cai, Yi-Tao, Xu, Ying-Feng (2015) A combined fluid inclusion and S–Pb isotope study of the Neoproterozoic Pingshui volcanogenic massive sulfide Cu–Zn deposit, Southeast China. Ore Geology Reviews, 66. 388-402 doi:10.1016/j.oregeorev.2014.11.002 | Journal (article/letter/editorial) | | Both pyrite from the massive sulfide ores and plagioclase from the spilites have similar lead isotope compositions...hydrothermal alteration, producing the sodic plagioclase and the associated chlorite, epidote, sericite...Spooner and Bray (1977) Toscano et al. (1997) Salgadinho (IPB) EPR 14°N Primary Primary Stock work Massive...was ±0.2‰. Pyrite from massive sulfide ores and plagioclase from the volcanic rocks of the Pingshui Formation...compositions of pyrite from massive sulfide ores and plagioclase from arc rocks of theNeoproterozoic Pingshui |  | | 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 . . . . . . . . . . . . . . ....Higgins and Wagner Gentis (1982), at the locality of Santiago de las Villas (Leon). The Alba Fm. (Genicera Fm...km E of Gijon (Asturias), in the La Camocha Coal Mine, where some 2300 m of a succession containing workable...Bashkirian in age. Only several metres above the base do the lowermost Moscovian fossils (Eofusulina triangula |  | | Journal (article/letter/editorial) | | Edifício C6, Piso 4, Campo Grande, 1749-016, Lisboa, Portugal e-mail: jrelvas@fc.ul.pt J. B. Gemmell ARC Centre...salinities or very 18O-enriched (δ18O>5‰) ore fluids. We do not consider other criteria [e.g. variable salinity...deposits: Seedorf et al. 2005; Meinert et al. 2005), we do not consider them diagnostic of a magmatic–hydrothermal...zone, is less likely in VHMS systems as vadose zones do not develop subaqueously. Hence, we consider the...W/Sn-bearing quartz veins from northern and central Portugal (seven deposits: Carris, Lombo de Boi, Linhares |  | | 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) | | retrogression and multiphase deformation. This suite (the Mine Sequence) is probably a deeper water sequence than...monotonous graded bedded deep water pelite suite. The Mine Sequence has undergone incipient pre-metamorphic...Fig. 1. Cross-section of the Mine Sequence, Section 30, Zinc Corporation Mine, Broken Hill 20 (amphibolite)...Fluorapophyllite-bustamite-orthoclase. 9. Fluorapatite, Nine Mile Mine. Quartz-gahnite-spessartinefluorapatite. 10 and...exhalites are in lower stratigraphic positions than the Mine Sequence and are not discussed here. The most c |  | | Journal (article/letter/editorial) | | hanging-wall andesites, with samples near the Battle mine containing muscovite to phengitic muscovite (average...even in very fine grained rocks, can be used as mine-scale vectors to ore. Introduction MAPPING of hydrothermal...at Myra FIG. 4. Composite cross section of the mine sequence at Myra Falls, modified from Pearson (1993)...porphyry (SJ696, drill hole 18-976, 24 m, Battle mine). h. Strongly sericite–altered HW rhyolitic volcaniclastic...feldspar porphyry (SJ796, drill hole P13-304, HW mine). j. Quartz-pyrite-sericite–altered rhyolitic conglomerate |  | Almodóvar, G. R., Sáez, R., Pons, J. M., Maestre, A., Toscano, M., Pascual, E. (1997) Geology and genesis of the Aznalcóllar massive sulphide deposits, Iberian Pyrite Belt, Spain. Mineralium Deposita, 33 (1) 111-136 doi:10.1007/s001260050136 | Journal (article/letter/editorial) | | of volcanics is fractional crystallization of plagioclase (+accessories). This process took place in shallow...embayed quartz phenocrysts, together with minor plagioclase. Biotite phenocrysts are rare and more often...(indicating no post-volcanic reworking), quartz and plagioclase crystals, as well as lithic fragments up to 10...lithic fragments are dacitic with dominantly plagioclase (An60), quartz and biotite phenocrysts embedded...in previous works in areas presently covered by mine dumps (Coullaut et al. 1975; Hofstetter 1980). They |  | | Journal (article/letter/editorial) | | albite-gedrite-quartz and biotite-muscovite-plagioclase-K-feldspar-quartz + / - garnet assemblages. The...some important sulphide ores; e.g. in the Falun mine. Geochemical studies of supracrustal and intrusive...hydrothermally altered, metamorphosed, quartz-plagioclase-phyric volcanic rock. Due to alteration, the...primary textures. The rock is quartz-K-feldspar-plagioclase-phyric and contains varying amounts of biotite...retrograde chlorite, quartz, microcline, and plagioclase. Accessory minerals include pyrite with magnetite |  | | Journal (article/letter/editorial) | | DE MORAES, L.J.: Dep6sitos diamantlferos no norte do Estado de Minas Geraes. - - Serv. Fom. Prod. Min...SCHOBnENaAUS, C., & RENGES, F.: Contribuig~o ~ geotect6nica do Brasil Oriental. - - SUDENE, Sgrie Espec. 9, Recife..."Borborema%Belt (States of Paraiba and Rio Grande do Norte; northeastern Brazil) and the origin of its...Pesquisas" and the "Fundag~o de Amparo/~ Pesquisa do Estado de Sao Paulo". 1292 H. EBERT - - The...Tell einer zweiten. Ein anderer Quarzit, ,,S~o Jos6 do Serial6", ist nur im Westteil des Aufnahmegebietes |  | | Journal (article/letter/editorial) | | The mineralhad obviouslyturnedinto microlite. I do not believethat weathering can providethe physico-chemical...crystalseither fracturedor exhibitingbent lamellae. The plagioclase containsan averageof 25 percentof anorthiteand... AGEDETERMINATIONOF QUARTZVEINS IN BRAZIL. 107 Santa Maria do SuassuL---In the District of Glucinio, muscovite-bearing...of the Minasseries. Some form the famousCruzeiro mine, and smallerminesare known as Sexta-Feira, Campinho...andthe formationof microclineby replacement of plagioclase, togetherwith the transformationof spodumene |  | dos Santos, Edilton Jose, Souza Neto, João Adauto, Carmona, Luis Christian M., Armstrong, Richard, Santos, Lauro Cezar M. Lira, Mendes, Lucas Upa D. Santos (2013) The metacarbonate rocks of Itatuba (Paraíba): A record of sedimentary recycling in a Paleoproterozoic collision zone of the Borborema province, NE Brazil. Precambrian Research, 224. 454-471 doi:10.1016/j.precamres.2012.09.021 | Journal (article/letter/editorial) | | Archean gneisses of the São Francisco Craton at Angico do Dias, Bahia state, Brazil (Silva et al., 1988). Previous...Isotopic Geology at the Federal University of Rio Grande do Sul (UFRGS). Calibration involved a mixture of 149...rocks. Its mineralogical composition includes plagioclase (30–35%), microcline (35–40%), quartz (20–30%)...rocks, with the most important being that of the Salgadinho Farm (Carmona, 2006). Amphibolites are the dominant...formed of hornblende, diopside-hedenbergite, plagioclase, and quartz, with abundant apatite and titanite |  | Yang, Chengdong, Geng, Xinxia, Yang, Fuquan, Li, Qiang (2018) Metallogeny of the Sarsuk polymetallic Au deposit in the Ashele Basin, Altay Orogenic Belt, Xinjiang, NW China: Constraints from mineralogy, fluid inclusions, and He–Ar isotopes. Ore Geology Reviews, 100. 77-98 doi:10.1016/j.oregeorev.2016.10.026 | Journal (article/letter/editorial) | | and bornite. Gangue minerals include quartz, plagioclase, sericite, chlorite, muscovite, calcite, and...Cu (Au) stockwork deposit of Salgadinho, Cercal, Pyrite Belt, SW Portugal–paragenetic sequence and fluid..., Sato, T., 1978. Kuroko deposits of the Kosaka mine, Northeast Honshu, Japan: Products of submarine...deposits in Nanling region. First National Symposium on Mine Ore Petrography Physiognomy Proceedings. Beijing:...Küre VMS deposit, Turkey Kuroko deposits of Kosaka Mine, Japan Iwami deposit, Japan the Salinity (wt.% |  | | Journal (article/letter/editorial) | | 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)...up to 2-cm xenoliths of paragneiss or garnet, plagioclase, and biotite xenocrysts. The structure of the...(Fig. 4G), with minor amphibolite (composed of plagioclase and hornblende, which differs from monomineralic...nematoblastic texture, comprising mainly hornblende and plagioclase, with associated garnet in some bands. Calc-silicate |  | | 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 |  | | Report (volume) | | least altered portions of these rocks consist of plagioclase and alkali feldspar, quartz, biotite, accessory...have significant embayments and indentations. Plagioclase forms fewer phenocrysts than quartz and occurs...of rocks also show higher Cu and Mo contents than do rocks from typical calc-alkaline suites (table 2)...30 1.10 • 70 .66 1.57 :T CD CaD 2. 50 3. DO 3. 00 1. 90 1. 60 1. 70 1. 40 1.60 .90 •...00 .00 .oo .oo .00 • 00 .oo .on .oo .00 .DO .oo .oo • 00 .oo .oo .oo .00 Ni 0 .oo .oo |  | | Journal (issue) | | alexandrite; and the list goes on. Furthermore, even when we do determine, for ISSN: 0022-1252 460 example, that...large rubellite crystals were found in the pegmatite mine at Sakangyi. Furthermore, Bauer (Spencer transi...available there was was little that mineralogists could do do to identify identify many species which nether reacted...Hughes, 1990). The rubies are associated with plagioclase, mica, tourmaline and kyanite in the pegmatites...in the examined samples, Ruby 4- muscovite 4- plagioclase (oligoclase andesine) 4- xenotime* (sample 4) |  | | Journal (issue) | | Stevenson. This was a veritable mine of of inif one can have a mine for pearls. When formation - if I...1991,22, 6 334 Gem thaumasite from the Black Rock Mine, South South Mrica Africa Ulrich Henn, Markus...in South Africa. The locality is the Black Rock Mine in the Kalahari Manganese Field (Figure 1). That...""-' 1.1 I ",' . " . _ ......... .tI' Wessels Mine Black Rock A• • FRYBURG • HOTAZEL -KURUMAN...Kalahari Manganese Field with the Black Rock Mine and the Wessels Mine Fig. I. near Hotazel (after Shigley el |  | | Journal (issue) | | Number Two Articles Cuprian elbaite from the Batalha mine, Paraíba, Brazil . . . . . . . . . . . . . . . ...by W. E. Wilson Stibnite from the Wuling antimony mine, Jianxi province, China . . . . . . . . . . . ....etch pits and corrosion surfaces, from the Medra mine, Minas Gerais, Brazil. Keith Proctor collection;...the U-Bild Company in Van Nuys, California sells do-it-yourself plans for about $10 showing how to build...can also be chosen. A catalog picturing hundreds of do-it-yourself projects costs $3.95 postpaid, from U-Bild |  | | Report (issue) | | elbaite crystals with lepidolite from the Golconda Mine in Minas Gerais, Brazil by Eberhard Equit, 1993...circa 1910 view of the old mine portal on the north side of the Himalaya Mine in San Diego County, CA....of which was the unification of the various plagioclase feldspars into a series as early as 1864, although...An 11 cm tall elbaite group from the Pederneira Mine in Minas Gerais, Brazil. The bottom of the group...Graeber Right: this dravite from the Mikhaylovskoye Mine in the Transbaikal Region of Russia is 4.5 cm tall |  | | Journal (issue) | | Ti:lt·plm11<' iJt,.95.·16 • DIRECTEUR 28 LES VIÉ. Nive mine 33 ITINÉRAIRES MINÉRALOGIQUES AU BRÉSIL. par J...pour cumentation grâtuite. - - - -~ recevoir uno do- Nom .............................................VIEILLES MINES BASQUES ONDAROLLES L'existence de cette mine semble avoir été mentionnée pour la première fois...cuivre ... ,. (3). En surface, à l'est-sud-est de la mine, de belles manifestations de fer, et beaucoup plus...d'une autre faille « sécante ». Carte Michelin La mine, disativn, ~-n territoire espagnol n'a j :mais f::iit |  | | Journal (issue) | | 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...50 0 W Bahia Bahia BA-S BA-5 Fazenda do Pombo BA-6 A~ude Açude do Sossego BA-7 Brumado BA-8 Carnaiba Carnaîba...Vs in Carnaiba. With the exception of the Belmont Mine in Itabira/MG, the mining methods in the Socotö...serpentinites. Formations Rio de Ouro (Tro) and Serra do Corrego (Tsc). 31 ,',',+1 Fig. Fig. 4. 4. Geological |
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