 | | Journal (issue) | | Besucherberqwerk Grube Fortuna, Solms-Oberbiei bil Wetzlar, Duitslan d Grube Fortuna was een ijzerertsmijn...exmijnwerkers, die dus weten waarover ze praten . Grube Fortuna ligt een paar kilometer ten noordwesten van Wetzlar...informatie kan U terecht bij Freizeitzentrum Lahn-Dill e .V ., Karl-Keilner-Ring 51, D35576 WETZLAR ...aangeboden worden zijn afkomsti g van de oude mijn 'Mine Praborna' bij Saint Marcel in het Aostadal , Geonieuws...locality inde x 335-340 Microminerals of the Flambeau Mine , Ladysmith . Rusk Co ., Wisconsin (USA ) 340-342 |  | Vallance, Jean, Fontboté, Lluís, Chiaradia, Massimo, Markowski, Agnès, Schmidt, Susanne, Vennemann, Torsten (2009) Magmatic-dominated fluid evolution in the Jurassic Nambija gold skarn deposits (southeastern Ecuador) Mineralium Deposita, 44 (4) 389-413 doi:10.1007/s00126-009-0238-2 | Journal (article/letter/editorial) | | for the precipitation of late comb quartz and calcite in cavities and veins and indicate mixing with...range of 21.1 to 17.3 wt.% eq. CaCl2, trapped in calcite of late veins and interpreted as basinal brines...mineralogical zonation has been observed at the mine scale, except at Fortuna. The main ore mineral associated with...endoskarn titanite from porphyritic intrusions at Fortuna and Campanillas as well as Re–Os ages of post-gold...well as stable isotope analyses of quartz and calcite. The study integrates previous fluid inclusion |  | | Journal (article/letter/editorial) | | ........... Origin and timing of siderite and calcite concretions in late Palaeogene non- to marginal-marine...platform margin, Exumas, Bahamas K.R. Aalto andR.F. Dill . . . . . . . . . . . . . . . . . . . . . . . ....Lower-Rhine Basin (Germany&the ‘Liegendrbcken’ of the brown-coal open-cast Fortuna mine A. Sch’afer, D. |  | Staude, S., Mordhorst, T., Neumann, R., Prebeck, W., Markl, G. (2010) Compositional variation of the tennantite–tetrahedrite solid-solution series in the Schwarzwald ore district (SW Germany): The role of mineralization processes and fluid source. Mineralogical Magazine, 74 (2) 309-339 doi:10.1180/minmag.2010.074.2.309 | Journal (article/letter/editorial) | | solidsolution series in the Schwarzwald ore district (SW Germany): The role of mineralization processes and fluid...Tübingen, Wilhelmstrasse 56, D-72074 Tübingen, Germany [Received 30 October 2009; Accepted 28 April 2010]...locations in the Schwarzwald ore district of SW Germany. Electron microprobe analysis is used to correlate...1980). From the Middle Triassic to Jurassic, SW Germany was part of a shelf platform with distinct time...Southern Germany is well suited to understanding the controls on fahlore composition. This region contains |  | | Book | | Justus-Liebig-Universität Senckenbergstrasse 3 35390 Giessen Germany K. WEBER Institut für Geologie und Dynamik...Göttingen Goldschmidtstrasse 3 37077 Göttingen Germany Cataloging-in-Publication D a t a applied for...hosted an international conference in G6ttingen/Giessen, Germany. Discussions were focused on the Tectonothermal...compilation of the papers presented in G6ttingen/Giessen. Instead, it represents a coordinated volume designed...possible in a formerly divided world. Athens, Giessen, G6ttingen, 1994 R.D. DALLMEYER W. FRANKE K. |  | Markowski, Agnès, Vallance, Jean, Chiaradia, Massimo, Fontboté, Lluìs (2006) Mineral zoning and gold occurrence in the Fortuna skarn mine, Nambija district, Ecuador. Mineralium Deposita, 41 (4) 301-321 doi:10.1007/s00126-006-0062-x | Journal (article/letter/editorial) | | Mineral zoning and gold occurrence in the Fortuna skarn mine, Nambija district, Ecuador Received: 24 February...May 2006 # Springer-Verlag 2006 Abstract The Fortuna oxidized gold skarn deposit is located in the northern...which are named from north to south: Cuerpo 3, Mine 1, Mine 2, and Southern Sector. Massive skarn bodies...intrusion which crops out below the skarn bodies in Mine 2 and the Southern Sector. Endoskarn alteration...zone is centered on two 060° trending faults in Mine 2, where the highest gold grades (5–10 g/t) were |  | | Journal (article/letter/editorial) | | 1•88, pp. 1583-1596 Ore Deposits at the Fresnillo Mine, Zacatecas,Mexico DELFINO C. RUVALCABA-RUIZ PasajeE...increasingelevation. Fluid inclusionsin quartz, calcite, and sphaleritecontaintwo phases,water and water...between240 ø and 350øC while shallowand distalquartz, calcite,and sphaleritefrom veins yield temperatures between140ø...surface)level. Introduction hills, Loma de la Fortuna, Cerro Proafio, and Cerro Populo, with reliefs...veins,of which more than 30 ental (Fig. 1). The mine area,immediatelysouthand havebeenmajorore producers |  | Chiaradia, Massimo, Vallance, Jean, Fontboté, Lluis, Stein, Holly, Schaltegger, Urs, Coder, Joshua, Richards, Jeremy, Villeneuve, Mike, Gendall, Ian (2009) U–Pb, Re–Os, and 40Ar/39Ar geochronology of the Nambija Au-skarn and Pangui porphyry Cu deposits, Ecuador: implications for the Jurassic metallogenic belt of the Northern Andes. Mineralium Deposita, 44 (4) 371-387 doi:10.1007/s00126-008-0210-6 | Journal (article/letter/editorial) | | discontinuous skarn orebodies occur from north to south: Fortuna, Cambana, Campanillas, Nambija, Guaysimi, and Sultana...essentially of vugs and veins with quartz, K-feldspar, calcite, chlorite, hematite±plagioclase±muscovite, and...44:371–387 79˚W Colombia W es te Int rn er- C An or de dill su an era bAn Va de lle y an Zo ne Pacific Ocean...N San Carlos de las Minas Ecuador PiÒon 0˚ Fortuna DTR64, 184 Cordille ra Quito Amazon craton Cambana...Biotite-muscovite schist Sultana del Cóndor Gold prospect and mine Warintza San Carlos Porphyry Cu-Mo and Cu-Au |  | | Report (issue) | | describes his recent visits to a small former fluorite mine 2.5 kilometers north of the village of Mihalkovo...border with Greece. Until its closure in 1994 this mine produced fluorite for industrial uses, and, it seems...of siderite and sphalerite after calcite, from the Broken Hill mine, Aggeneys, Northern Cape Province...Siderite/Sphalerite epimorphs after calcite, 14.2 cm, from the Broken Hill mine, Aggeneys, Northern Cape Province...Frohnau region near Annaberg, in the Erzgebirge (“ore mountains”) of Saxony, eastern Germany. The fluorite |  | | Journal (article/letter/editorial) | | 31.04 ± 0.05 Ma. Dating of orthoclase from the Fortuna quartz-monzonite was problematic due to excess...well after emplacement of the dated phase of the Fortuna stock and, consequently, it cannot be the source...age between epithermal mineralization and the Fortuna stock is indicative of a long-lived but episodic...experiments on orthoclase from the Fortuna quartz-monzonite (Fortuna stock) associated with skarn and manto...The Oligocene Fortuna stock is spatially associated with mineralization in the Fortuna and Proaño areas |  | | Report (issue) | | Distribution of the ore districts in the Cordilleran region ............+00+.eeee0: Relation of epithermal...Plate 1. ao Facing Structural map of Cordilleran region showing ore districts associated with domes or...the anticlinal axis and dip toward it; but the Fortuna fracture, which carried the richest ore body, lies...deposits are scattered from one end of the Cordilleran region to the other. They show, however, a preference...metallization was taking place. The whole Cordilleran region was fast assuming its present shape. The local |  | | Report (issue) | | element principally sought were listed by the State Mine Inspector of which four actually produced some gold...23 Eureka district................. 23 Hillside mine ~.................................................and Dexter mine................................................................ 25 Cowboy mine........................ 26 Crosby mine 26 Southern Cross mine 27 Mammoth or Hubbard mine..................................... 27 Prescott district 28 Bullwhacker mine................................................ |  | | Journal (article/letter/editorial) | | boiling. However, banding in paragenetically younger calcite indicates that boiling was episodic in addition...fluid inclusions in fluorite from the Getchell mine is an artifact of boiling and a depth of ≤980 m...crystalline white-quartz vein in the DZ Fault, Twin Creeks mine contains cogenetic liquid-rich and vapor-rich fluid...Carlin-type gold mineralization at the Twin Creeks mine. Keywords: Carlin-type gold deposits; fluid boiling;...Latestage orpiment and banded calcite containing realgar from the Getchell mine are described and compared |  | O'Neil, J. R., Silberman, M. L., Fabbi, B. P., Chesterman, C. W. (1973) Stable isotope and chemical relations during mineralization in the Bodie mining district, Mono County, California. Economic Geology, 68 (6) 765-784 doi:10.2113/gsecongeo.68.6.765 | Journal (article/letter/editorial) | | of an irregular,faulted, dump of the Red Cloud mine contained galena, north-trendinganticlineintrudedby...Almostall of the quartzveinssampled from dumpsor mine workingsin this study contain at leastsomeadulariathat... quartz and occasionally with both quartz and calcite. part of the district. Quartz vein samplesshowing...intermediatecalc-alkalinevolcanic rocksin the westernborder region of the Basin and Rangeprovince. Metasomatic Effects...theserocksproceeded with increasing degrees from mine workingsand dumpson StandardHill of recrystallization |  | | Report (issue) | | ......................... Silver Clip or Blaine mine...................................................Saxon mine................................ .................................... Princess mine............................................... Red Cloud mine.......................................... ............................................ Black Rock mine ......................................................................................... Cibola region............................................... |  | Skirrow, R.G, Camacho, A, Lyons, P, Pieters, P.E, Sims, J.P, Stuart-Smith, P.G, Miró, R (2000) Metallogeny of the southern Sierras Pampeanas, Argentina: geological, 40Ar–39Ar dating and stable isotope evidence for Devonian Au, Ag–Pb–Zn and W ore formation. Ore Geology Reviews, 17 (1) 39-81 doi:10.1016/s0169-1368(00)00004-4 | Journal (article/letter/editorial) | | increasing interest, however, is the potential of the region for precious and base metal mineralization. A large... yet the region remains relatively underexplored. The metallogenic diversity of the region is further...reassess the metallogeny of this historic mining region. 2. Geological setting and tectono-magmatic evolution...up to the 1930s ŽCaminos and Cucchi, 1990.. The region is dominated by pelitic to psammitic gneiss, migmatite...and which postdates the Pampean structures in the region ŽLyons et al., 1997.. Quartz vein textures and |  | | Journal (article/letter/editorial) | | their context within the tectonic evolution of the region, and synoptic references on each gold deposit type...Au). The next two papers (Tosdal et al., 2003; Fortuna et al., 2003) focus on deposits in the Getchell...and significance of paragenetically late sparry calcite and barite present in many of these deposits. All...extensional faulting and calc-alkaline magmatism in the region, but before volcanism ended. They conclude that...which are unlike known magmatic sources in the region. One end member is Neoproterozoic and Cambrian |  | | Report (issue) | | Rincon.________________________________________ La Fortuna-------------_----_--_-__-__---_----___.-_-__-___...and section of the north veins of El Palo Verde mine.______-_____.____________-_-_-__---__--_____ Geology...El Promontorio mine________ Geology of the La Fortuna area__-_____-___-__-_---_--_ Geology of the La...than a few inches. In spite of the aridity of the region, the water table is only 10 to 55 meters below...of the smaller deposits in the district, the La Fortuna, La Carta Blanca, and El Divisadero mines, are |  | | Journal (article/letter/editorial) | | hydrothermal mineralassemblage comprisingquartz,calcite,illite, or interlayeredillite-montmorillonite,...elevationsandare the youngestTertiary rocksin the region. Similarcompositiondikesare alsoknownin undergroundmine...openfolds metal sulfide mineralization in the Fortuna ore zone to tight recumbentchevronfolds (e.g.,...sulfideorebodies.Heavy sulfideorebodiesinclude the Fortuna and Cueva Santa mantosand chimneys;light sulfide...with minorquartzor calciteveining,with or without calcite,chlorite, andcalc-silicateminerals(Stoneand tracesof |  | | Journal (article/letter/editorial) | | Universität, Theresienstrasse 41, D-80333 München, Germany 2 Bayerisches Geoinstitut Universität Bayreuth...Bayreuth, Universitätsstrasse 30, D-95447 Bayreuth, Germany 3 School of GeoSciences, The University of Edinburgh...reported clinopyroxenes from the Pb-Zn Nakatatsu skarn mine, coexisting with ore, which contained 1000–10 000...A(2) contained additionally zinc-feldspar and calcite. Mixture B was composed of wollastonite, quartz...zinc-feldspar + willemite + hardystonite + quartz + calcite; B = CaZnSi2O6 composition, SiO2 and CaCO3 sintered |  | | Report (issue) | | aa, 16H7 . t Oretlt. ft /Mm# »f.i Falu copper mine has been continuously mined for more than 900 years...gahnite and långbanite were first recognized in this region and the word skarn (originally having a pejorative...copper was mined from 1644 until recently. The first mine in Finland was the Ojamo iron ore deposit, which...Skellefte district, the Laisvall Pb-mine and the Aitik Cu-Au mine. The sulphide ores in the Outokumpu...associated with intrusive rocks include the Vammala Ni-Cu mine in Finland and the Wigström W deposit in Sweden |  | | Journal (article/letter/editorial) | | 240-m-thick quartzite unit of the Pennsylvanian Bingham Mine Formation, extends 170 m from the northeast margin...a thrust fault, below which beds of the Bingham Mine Formation are vertical and cut by abundant northeast-striking...dipping faults, dikes, and isoclinal folds, the Fortuna zone. Ore-forming hydrothermal assemblages in quartzite...and the Fortuna zone and then up to the south-southeast along bedding. At its source region the brine...based on nk-cv-S equilibria Clark (1970) Undu Mine, Nukundamu, Fiji Kuroko-type massive sulfide Qtz-opal |  | Miriello, Domenico, Antonelli, Fabrizio, Bloise, Andrea, Ceci, Monica, Columbu, Stefano, De Luca, Raffaella, Lezzerini, Marco, Pecci, Alessandra, Mollo, Bina Sara, Brocato, Paolo (2019) Archaeometric Approach for Studying Architectural Earthenwares from the Archaeological Site of S. Omobono (Rome-Italy) Minerals, 9 (5) 266 doi:10.3390/min9050266 | Journal (article/letter/editorial) | | which twin temples, dedicated to the goddesses Fortuna and Mater Matuta. These two temples were then destroyed...Axioskop 40 petrographic microscope (Zeiss, Jena, Germany), equipped with a Canon PowerShot A640 photo camera...X-ray powder diffractometer (Bruker, Karlsruhe, Germany), with Cu-Kα radiation, operating at 40 kV and...EVA V. 11.3 software program (Bruker, Karlsruhe, Germany) was used, by comparing experimental peaks with...using TOPAS software V.4.2 (Bruker, Karlsruhe, Germany). The chemical composition of major, minor (SiO2 |  | | Report (issue) | | [Mexico-copper/zinc/lead/gold/silver]: Hannover, Germany, Bundesanstalt fur Geowissenschaften und Rohstoffe... C., and Barcenas R., A., 1978, Geologia de la region cuprifera del Transvaal, municipio de Cumpas, Sonora...geochemistry and mineralization of the Washington mine area, Huepac, Sonora [abs.] in Najera-Garza, J....related to pegmatites at the San Antonio tungsten mine, Baviacora, Sonora, Mexico [abs.]: Geological Society...1982, A study of manganese ore composition, Lucifer mine, Baja California, Mexico [abs.]: Geological Society |  | Simón, Valeria, Arnosio, Marcelo, Trumbull, Robert B., Caffe, Pablo, Rocholl, Alexander, Sudo, Masafumi, Lucassen, Friedrich, Huidobro, Facundo (2021) Geology, geochemistry and geochronology of Lindero porphyry gold deposit in the Southern Puna plateau, Argentina. Journal of South American Earth Sciences, 105. 103047pp. doi:10.1016/j.jsames.2020.103047 | Journal (article/letter/editorial) | | Geosciences GFZ, Telegrafenberg 14473, Potsdam, Germany of Instituto de Ecorregiones Andinas (INECOA...Geosciences, University of Potsdam, 14476 Potsdam-Golm, Germany re -p MARUM-Center for Marine Environmental...University of Bremen, Leobener Str. 8, 28359 Bremen, Germany 16 lP 15 20 21 22 ur 19 Jo 18 na 17 ...(clinopyroxene + magnetite + K-feldspar + quartz + 37 calcite ± plagioclase), (ii) K-silicate (K-feldspar + quartz...± biotite ± anhydrite) and (iii) 38 chlorite-calcite alteration. The highest ore grades are linked to |
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