 | Cepedal, A., Fuertes-Fuente, M., Martin-Izard, A., Gonzalez-Nistal, S., Barrero, M. (2008) GOLD-BEARING As-RICH PYRITE AND ARSENOPYRITE FROM THE EL VALLE GOLD DEPOSIT, ASTURIAS, NORTHWESTERN SPAIN. The Canadian Mineralogist, 46 (1) 233-247 doi:10.3749/canmin.46.1.233 | Journal (article/letter/editorial) | | As-RICH PYRITE AND ARSENOPYRITE FROM THE EL VALLE GOLD DEPOSIT, ASTURIAS, NORTHWESTERN SPAIN Antonia CEPEDAL§...of Oviedo, Arias de Velasco s/n, Eâ33005 Oviedo, Spain Santiago GONZĂLEZ-NISTAL and MĂłnica BARRERO RĂo...Riera, 3-2° Asipo, Eâ33428 CayĂ©s-Llanera, Asturias, Spain Abstract The El Valle deposit is included within...BoinĂĄs AuâCu deposit in Asturias, northwestern Spain, an important gold-producer in Europe. Gold mineralization...minerals in unoxidized zones are pyrite and arsenopyrite. Their textures and major- and trace-element |  | | Journal (article/letter/editorial) | | Skarns of the Andorra Granite (Central Pyrenees, Spain): Sulphur Isotope Data* E. Cardellach ~, C. Ayora...Autonoma de Barcelona, Spain 2 Institut de Ci6ncies de la Terra, CSIC, Barcelona, Spain 3Departament de Cristallografia...Barcelona, Spain With 4 Figures Received July 11, 1991; accepted October 30, 1991 Summary Arsenopyrite-gold...foliation. In the central Pyrenees, gold-bearing arsenopyrite mineralizations have recently been discovered...veins, with gold also being associated with arsenopyrite, bismuth and sulphides. The late Hercynian Andorra |  | 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) | | discovery in the Variscan basement of northwest Spain: A ïŹuid inclusion and stable isotope study Fernando...Universidad de LeĂłn, C/JesĂșs Rubio 2, 24004, LeĂłn, Spain Departamento de CristalografĂa y MineralogĂa, Facultad...Madrid, Spain ESCET, E. Departamental II, Universidad Rey Juan Carlos, MĂłstoles, 28933, Madrid, Spain d IGME...Salamanca, Spain e FundaciĂłn Cultura Minera, CN-VI, Km. 366, Torre del Bierzo, 24370 LeĂłn, Spain b c a r...Fluid chemistry Stable isotopes Arsenopyrite geothermometer Northwest Spain a b s t r a c t The northwest |  | Canet, C., Alfonso, P., Melgarejo, J.-C., Jorge, S. (2003) PGE-BEARING MINERALS IN SILURIAN SEDEX DEPOSITS IN THE POBLET AREA, SOUTHWESTERN CATALONIA, SPAIN. The Canadian Mineralogist, 41 (3) 581-595 doi:10.2113/gscanmin.41.3.581 | Journal (article/letter/editorial) | | DEPOSITS IN THE POBLET AREA, SOUTHWESTERN CATALONIA, SPAIN CARLES CANET§ Departamento de Recursos Naturales...Universitat de Barcelona, Eâ08028 Barcelona, Catalonia, Spain SUSANA JORGE Departamento de DidĂĄcticas EspecĂficas...(EducaciĂłn), C/ Villadiego s/n, Eâ09001 Burgos, Spain ABSTRACT The Lower Llandoverian metasedimentary...the Prades Mountains, in southwestern Catalonia, Spain, consists of interbedded massive feldspar beds,...Pd-bearing löllingite by arsenopyrite. During this process, the arsenopyrite structure was unable to accommodate |  | | Journal (article/letter/editorial) | | DE LA CUEVA DEPOSITS, RONDA PERIDOTITE, SOUTHERN SPAIN SKAGE R. HEM§ AND EMIL MAKOVICKY Department of Mineralogy...I.C. â Universidad de Granada, Eâ18002 Granada, Spain ABSTRACT FeâCoâNi sulfarsenides and diarsenides...of chalcopyriteâcubanite intergrowths hosting arsenopyrite, cobaltite and sphalerite, as well as chloriteâ...calciteâtalc with minor arsenopyrite and löllingite. Alloclasite, arsenopyrite, cobaltite, löllingite...pentlandite, pyrrhotite, smythite, Ronda Peridotite, Spain. SOMMAIRE Des sulfarsĂ©niures et diarsĂ©niures de |  | | Journal (article/letter/editorial) | | Genesis of the Arsenopyrite GoldVeinsfromtheVail de RibesDistrict, EasternPyrenees,Spain CARLOSAYORA, ...Terra,CSIC,Mart(i Franquâąss/n, 08028Barcelona, Spain FIDELRIBERA,* Departemento deCristallografia,...deBarcelona, Martf i Franquâąs s/n,08028 Barcelona, Spain AND ESTEVE CARDELLACH Departemento deGeologia,...Universitat Autdnoma deBarcelona, 08193Bellaterra, Spain Abstract In the districtof Vall de Ribes,Cambro-Ordovician...schists containseveraldisseminated gold-bearing arsenopyrite occurrences. Close tothese occurrences quartz |  | | Journal (article/letter/editorial) | | related to the Andorra granite (central Pyrenees, Spain) R.L. Romer a'* A. Soler z 1 Laboratoire de G6ochronologie...Minerals, Universitat de Barcelona, E-08028 Barcelona, Spain Received: 20 December 1993/Accepted: 28 September...Outwards, it increasingly resembles sulfur from arsenopyrite disseminations in the C a m b r o - O r d o...contrast to the one in gold-bearing arsenopyrite veins and in arsenopyrite disseminations in the sediments...sediments in places contain arsenopyrite disseminations and arsenopyrite-bearing veins (Ayora et al. |  | Martinez-Abad, I., Cepedal, A., Arias, D., Martin-Izard, A. (2015) The Vilalba gold district, a new discovery in the Variscan terranes of the NW of Spain: A geologic, fluid inclusion and stable isotope study. Ore Geology Reviews, 66. 344-365 doi:10.1016/j.oregeorev.2014.10.021 | Journal (article/letter/editorial) | | discovery in the Variscan terranes of the NW of Spain: A geologic, ïŹuid inclusion and stable isotope study...University, C/Arias de Velasco s/n, E-33005 Oviedo, Spain a r t i c l e i n f o Article history: Received...Vilalba gold district, a new gold region in the NW of Spain comprising three mineralized areas (Castro de Rei...stages. The ïŹrst consists of As-rich pyrite and arsenopyrite with invisible gold. The second stage mainly...(Fig. 1a,b). The presence of gold in the NW of Spain has been recognized since Roman times. Thus far |  | Mateo, Ester, Fanlo, Isabel, SubĂas, Ignacio, Recio, Clemente, Billström, Kjell (2010) Geological, mineralogical and geochemical constraints on the genesis of the ChinipĂ arsenopyrite-pyrite-invisible gold vein (Canfranc, Central Spanish Pyrenees) Neues Jahrbuch fĂŒr Mineralogie - Abhandlungen, 187 (3) 313-327 doi:10.1127/0077-7757/2010/0182 | Journal (article/letter/editorial) | | geochemical constraints on the genesis of the ChinipĂ arsenopyrite-pyrite-invisible gold vein (Canfranc, Central...distinguished: the main one consisting of pyrite, arsenopyrite, with minor chalcopyrite and pyrrhotite and...wall and chlorite at the footwall. According to arsenopyrite geothermometry, vein formation occurred at around...pre-Caradocian volcanosedimentary formations; (2) arsenopyrite-gold veins crosscutting the main foliation of...its native state but it is caught up in the arsenopyrite/pyrite crystal lattices, (2) there is no evidence |  | Asta, Maria P., Cama, Jordi, Ayora, Carlos, Acero, Patricia, de Giudici, Giovanni (2010) Arsenopyrite dissolution rates in O2-bearing solutions. Chemical Geology, 273 (3) 272-285 doi:10.1016/j.chemgeo.2010.03.002 | Journal (article/letter/editorial) | | i e r. c o m / l o c a t e / c h e m g e o Arsenopyrite dissolution rates in O2-bearing solutions Maria...(IDAEA), CSIC, Jordi Girona, 18-26, Barcelona 08034, Spain Department of Earth Sciences, University of Zaragoza...Zaragoza, Pedro Cerbuna 12, Zaragoza 50009, Spain Department of Earth Science, University of Cagliari, Via...Keywords: Arsenic Arsenopyrite Dissolution Kinetics Iron coating a b s t r a c t Arsenopyrite dissolution...samples showed an enrichment of the reacted arsenopyrite surface in sulphur and arsenic under acidic |  | | Journal (article/letter/editorial) | | Asturias, Spain J. Garcia Iglesias and J. Loredo Escuela de Minas, Independencia 13, 33004 Oviedo, Spain Received:...the skarn. The crystallization temperature of arsenopyrite is coherent with T-P conditions (T = 460 ~ P...prosperity. After that gold mining in northwestern Spain fell into oblivion until the nineteenth century...disseminated in the skarn. Predominant sultides are arsenopyrite and chalcopyrite. Loellingite, occasionally...occasionally abundant, is irregularly associated with arsenopyrite. Pyrrhotite is occasionally present, sometimes |  | Hudson-Edwards, Karen A., Jamieson, Heather E., Charnock, John M., Macklin, Mark G. (2005) Arsenic speciation in waters and sediment of ephemeral floodplain pools, RĂos AgrioâGuadiamar, AznalcĂłllar, Spain. Chemical Geology, 219 (1) 175-192 doi:10.1016/j.chemgeo.2005.02.001 | Journal (article/letter/editorial) | | floodplain pools, RıÌos AgrioâGuadiamar, AznalcoÌllar, Spain Karen A. Hudson-Edwardsa,T, Heather E. Jamiesonb...sediments is sequestered in sulphide (As0 in arsenopyrite and pyrite, coordinated by 1 S and 3 Fe) and...specifically, arsenopyrite) in the sediments that remained even after clean-up efforts. The arsenopyrite remaining...Guadiamar; AznalcoÌllar; Arsenic; Jarosite; Fe oxide; Arsenopyrite; EXAFS; Speciation 1. Introduction T Corresponding...As can occur in a variety of forms including arsenopyrite [FeAsS], pyrite [FeS2] (Foster et al., 1998) |  | Vindel, Elena, Chicharro, Eva, Villaseca, Carlos, LĂłpez-GarcĂa, JosĂ© Ăngel, SĂĄnchez, Virginia (2014) Hydrothermal phosphate vein-type ores from the southern Central Iberian Zone, Spain: Evidence for their relationship to granites and Neoproterozoic metasedimentary rocks. Ore Geology Reviews, 62. 143-155 doi:10.1016/j.oregeorev.2014.03.011 | Journal (article/letter/editorial) | | vein-type ores from the southern Central Iberian Zone, Spain: Evidence for their relationship to granites and...Geologicas, Universidad Complutense, 28040 Madrid, Spain Dpt. PetrologĂa y GeoquĂmica, Facultad Ciencias...Complutense, 28040 Madrid, Spain Centro TecnolĂłgico de Repsol, MĂłstoles, Madrid, Spain a r t i c l e i n f...rights reserved. 1. Introduction Western-central Spain was one of the most important phosphate producer...Bucraa phosphate deposits, the mines of western Spain have remained inactive, except for small operations |  | Cepedal, A., Fuertes-Fuente, M., MartĂn-Izard, A., GonzĂĄlez-Nistal, S., RodrĂguez-Pevida, L. (2006) Tellurides, selenides and Bi-mineral assemblages from the RĂo Narcea Gold Belt, Asturias, Spain: genetic implications in CuâAu and Au skarns. Mineralogy and Petrology, 87 (3) 277-304 doi:10.1007/s00710-006-0127-7 | Journal (article/letter/editorial) | | assemblages from the RıÌo Narcea Gold Belt, Asturias, Spain: genetic implications in CuâAu and Au skarns A....2 Department of Geology, University of Oviedo, Spain RıÌo Narcea Gold Mines Received April 11, 2005;...pyrrhotite and to the replacement of l⏠ollingite by arsenopyrite, indicating lower fO2 conditions for gold mineralization...to quartz and calcite. Pyrite, chalcopyrite, arsenopyrite, and pyrrhotite (which is normally replaced...pyrrhotite. These minerals occur within idiomorphic arsenopyrite as inclusions that often define the morphology |  | Fanlo, I., Subias, I., Gervilla, F., Paniagua, A., Garcia, B. (2004) THE COMPOSITION OF Co-Ni-Fe SULFARSENIDES, DIARSENIDES AND TRIARSENIDES FROM THE SAN JUAN DE PLAN DEPOSIT, CENTRAL PYRENEES, SPAIN. The Canadian Mineralogist, 42 (4) 1221-1240 doi:10.2113/gscanmin.42.4.1221 | Journal (article/letter/editorial) | | THE SAN JUAN DE PLAN DEPOSIT, CENTRAL PYRENEES, SPAIN ISABEL FANLO§ AND IGNACIO SUBĂAS CristalografĂa...Zaragoza, C/ Pedro Cerbuna 12, Eâ50009 Zaragoza, Spain FERNANDO GERVILLA Instituto Andaluz de Ciencias...S.I.C.âUniversidad de Granada, Eâ18002 Granada, Spain ANDRĂS PANIAGUA AND BELĂN GARCĂA CristalografĂa...Eâ50009 Zaragoza, Spain ABSTRACT The San Juan de Plan deposit, in the central Pyrenees of Spain, is situated...sulfides and native Bi. The sulfarsenides are arsenopyrite, alloclasite, members of the gersdorffiteâ cobaltite |  | AlmodĂłvar, Gabriel R., Yesares, Lola, SĂĄez, Reinaldo, Toscano, Manuel, GonzĂĄlez, Felipe, Pons, Juan Manuel (2019) Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and Textural Evolution. Minerals, 9 (11) 653 doi:10.3390/min9110653 | Journal (article/letter/editorial) | | la Tierra, Universidad de Huelva, 21071 Huelva, Spain; almodovar@uhu.es (G.R.A.); saez@uhu.es (R.S.);...Ireland MATSA SAU, Almonaster la Real, 21342 Huelva, Spain; juan.pons@matsamining.com Correspondence: lola...of minor minerals is also present, including arsenopyrite, tetrahedriteâtennantite, cobaltite, SbâAsâBi...galena, chalcopyrite, tetrahedriteâtennantite, arsenopyrite, pyrrhotite, and many other minor phases, such...extending 230 km long and 40 km wide, from Seville, in Spain, to south of Lisbon, in Portugal (Figure (Figure |  | | Journal (article/letter/editorial) | | AuriferousQuartz Veins from the La CodoseraArea, Western Spain S. ROBERTS,D. J. SANDERSON,S. DEE, GeologyDepartment...GeoMinerode Esparâąa,RiosRosas23, 28003 Madrid, Spain Abstract The boundarybetweenthe CentralIberianandthe... AURIFEROUS QUARTZ VEINS, LACODOSERA, WESTERN SPAIN âą Devonian slates &quartzites âąI;h'.Ÿ(âąOrdovician/Silurian... AURIFEROUS QUARTZ VEINS, LACODOSERA, WESTERN SPAIN 1015 grainsor mayoccurasaggregates (> 1.5 cmin...cmin longest dimension) of predominantly arsenopyrite with minor pyrite.Chloriteis locallypresentandsecondary |  | | Journal (article/letter/editorial) | | Mineralogy and Geochemistry , Apdo. 257, Salamanca, Spain b Isotope Geology Unit , Scottish Universities...Mineralogy and Geochemistry , Apdo. 257, Salamanca, Spain Published online: 06 Jul 2010. To cite this article:...Mineralogy and Geochemistry, Apdo. 257, Salamanca, Spain A. E. FALLICK, Isotope Geology Unit, Scottish Universities...Mineralogy and Geochemistry, Apdo. 257, Salamanca, Spain Abstract This paper assesses chemical-mineralogical...mineralization in southern Salamanca province, Spain. Within the mineralized veins, along planes of quartz |  | | Journal (article/letter/editorial) | | mineralization in the Valdeflores area (Cficeres, Spain) J. Torres-Ruiz 1, A. Pesquera 2, P. P. Gil 2, and...y Petrologia, Universidad de Granada, Granada, Spain 2 Departamento de Mineralogia y Petrologia, Universidad...del Pais Vasco, Bilbao (Vizcaya), Spain 3 TOLSA S.A, Madrid, Spain With 8 Figures Received September...Cs-micas, and small amounts of arsenopyrite occur near Cficeres, Spain. The tourmalinites are developed...with tourmalinites containing Li-Cs micas and arsenopyrite, that are spatially associated with mineralized |  | | Journal (article/letter/editorial) | | Mineralisation from Vail de Ribes Area (Eastern Pyrenees, Spain) C. Ayora I , E. Cardellach 2, and R. Phillips 3...lografia i Mineralogia. Universitat de Barcelona. Spain 2 Departament de Cristal.lografia i Mineralogia...Universitat Autbnoma de Barcelona. Bellaterra. Spain 3 Department of Geological Sciences. University...part of the administrative province of Gerona (Spain), about 130 km north of Barcelona. The Ribes area...marble wall rocks. 3.3. Wall Rock 199 a) Arsenopyrite - Pyrite This is the most abundant paragenesis |  | | Journal (article/letter/editorial) | | contact of the Andorra granite (Central Pyrenees, Spain) A. Soler 1, C. Ayora 3, E. Cardellach 2, and J...Cienciesde la Terra (J. Almera), CSIC, Barcelona, Spain Received: December 1989/Accepted: August 1, 1990...sulphides. The sulphides in the skarn include arsenopyrite and pyrrhotite with lesser amounts of chalcopyrite...mineralizations described here are, together with massive arsenopyrite bodies (Soler and Ayora 1989), the first gold-bearing...skarns; (4) arsenopyrite skarns; and (5) magnetite skarns. Gold has been detected in arsenopyrite, pyrrhotite |  | | Journal (article/letter/editorial) | | Carlos, E. Departamental I, MoÌstoles, Madrid 28933, Spain b Departamento de CristalografıÌa y MineralogıÌa...GeoloÌgicas, Universidad Complutense, Madrid 28040, Spain c Departament de Geologia, Facultat de Ciencies...Universitat AutoÌnoma, Bellaterra 08193, Barcelona, Spain Received 21 October 2003; accepted 6 April 2004...methods Compositional analyses of sulphides (arsenopyrite, pyrite, sphalerite, chalcopyrite, pyrrhotite... Sulphur isotope compositions of sulphides (arsenopyrite, sphalerite, pyrite and chalcopyrite) were analysed |  | | Journal (article/letter/editorial) | | zones, West Santa Comba-Fervenza Area (Galicia, NW Spain): A mineralogical study R. Castroviejo E.T.S. lngenieros...Polit6cnica de Madrid), c/ Rios Rosas, 21 - 28003-Madrid (Spain) Received: May 1989/Accepted: September 6, 1990...terranes, some 40 km NW of Santiago de Compostela (NW Spain). The orebodies are bound to late-stage Hercynian...all prospects in the area. Main minerals are arsenopyrite and pyrite - accompanied by quartz, adularia... Ore grades can be improved by flotation of arsenopyrite. Non-conventional methods, such as pressure |  | | Journal (article/letter/editorial) | | mobilisation in the Caudal River catchment, north-west Spain J. Loredo, A. Ordóñez, R. Ălvarez and J. GarcĂa...sulphides (As-rich pyrite), sulpho-arsenides (arsenopyrite, realgar and orpiment), and supergenic minerals...important source of pollution. Asturias (north-western Spain) has a long mining tradition and Hg mining was an...Oviedo, Independencia 13, 33004 Oviedo (asturias), Spain. © 2004 IoM Communications Ltd. Published by Maney...mobilisation in the Caudal River catchment, north-west Spain 1 Caudal River catchment with location of main |  | | Journal (article/letter/editorial) | | rocks from the Vail de Ribes. Eastern Pyrenees, Spain C. Ayora and J. M. Casas Facultat de Geologia, Universitat...Universitat de Barcelona, Gran Via, 585, 08007 Barcelona, Spain Abstract. In the lower part of a pre-Caradocian...volcanics there are disseminations and lenses of arsenopyrite and pyrite with gold and B i - A g C u - P b... Fig. 4). The occurrences mainly consist of arsenopyrite with pyrite, pyrrhotite, and chalcopyrite. Native...orientation in relation to foliation. The crystals of arsenopyrite and pyrite display short pressure shadows at |
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Burguillos del Cerro, Badajoz, Extremadura, Spain