 | Caraballo, M. A., Macias, F., Nieto, J. M., Castillo, J., Quispe, D., Ayora, C. (2011) Hydrochemical performance and mineralogical evolution of a dispersed alkaline substrate (DAS) remediating the highly polluted acid mine drainage in the full-scale passive treatment of Mina Esperanza (SW Spain) American Mineralogist, 96 (8) 1270-1277 doi:10.2138/am.2011.3752 | Journal (article/letter/editorial) | | polluted acid mine drainage in the full-scale passive treatment of Mina Esperanza (SW Spain) Manuel a. Caraballo...of Huelva, Campus âEl Carmenâ, E-21071 Huelva, Spain Institute of Environmental Assessment and Water...IDĂAâCSIC, Jordi Girona 18, 08034 Barcelona, Spain abstraCt Acid mine drainage remediation is an unresolved...passive treatment system implemented in Mina Esperanza (SW Spain) was sampled to study the relationship between...future design for the Mina Esperanza passive treatment system. Keywords: Acid mine drainage, passive treatment |  | Valente, T., Grande, J.A., de la Torre, M.L., Santisteban, M., CerĂłn, J.C. (2013) Mineralogy and environmental relevance of AMD-precipitates from the Tharsis mines, Iberian Pyrite Belt (SW, Spain) Applied Geochemistry, 39. 11-25 doi:10.1016/j.apgeochem.2013.09.014 | Journal (article/letter/editorial) | | Iberian Pyrite Belt (SW, Spain) T. Valente a,b, J.A. Grande b,â, M.L. de la Torre b, M. Santisteban b, J...Frontera, s/n, 21819 Palos de la Frontera, Huelva, Spain b a r t i c l e i n f o Article history: Received...phases associated to acid mine drainage (AMD) at the Tharsis mines (SW Spain). It provides an inventory...Ltd. All rights reserved. 1. Introduction Acid mine drainage (AMD) from abandoned mines is an important...the AMD setting found at the Tharsis mines (SW Spain). Tharsis is among the largest massive sulïŹde deposits |  | | Journal (issue) | | :Refugio Jlline Famous mineral localities: The Refugio mine, Municipio de Choix, Sinaloa, Mexico .............Front Cover Smithsonite, 4 cm wide, from the Refugio mine, Choix, Sinaloa, Mexico. William Dameron collection;...that were collected and stored more carefully. The mine is still being actively worked today, as the city...6) San Pedro Corralitos, Amatitlan, San Francisco mine Mexico V.· (2008, vol. 39, no. 6) History, Milpillas...minerals (under the company name Xtal). The Refugio mine may not sound familiar at first, but that's because |  | | Book | | produced specimens from such places as the La FĂ© Mine in the state of Chiapas and Santa Rosalia in the... AN, ve Ă© g ty A 73 genet, |> pMoWlgsrey Torre = Ler 00% me eae SUAa S Luis Âź@sontioguilloS...~ Bortole 36 ms ve! 3 Luis Merotlan PLASC Torre sone BN toy > Lerao @sontiaguitios OURKN sn...Spaniards in 1517, the needs for minerals increased. Spain needed the gold and silver to finance its territorial...the Santa Eulalia area is uncertain. Records in Spain cite that silver was discovered in 1591 in the mountains | | | Book | | produced specimens from such places as the La Fe Mine in the state of Chiapas and Santa Rosalia in the...Spaniards in 1517 , the needs for minerals increased. Spain needed the gold and silver to finance its territorial...the Santa Eulalia area is uncertain. Records in Spain cite that silver was discovered in 1591 in the mountains...surface in large caves. Some of these caves and mine stopes were so large that it was said that the cathedral...of the political unrest in southcentral Mexico. Spain withdrew most of its rnilitary forces from Chihuahua |  | Colombo, F., Lira, R., Ripley, E. M., GonzĂĄlez del TĂĄnago, J. (2011) Geology, mineralogy and possible origin of the copper mineralization in marble near SaldĂĄn, CĂłrdoba (Argentina) Journal of GEOsciences, 56 (3) 299-316 | Journal (article/letter/editorial) | | GeolĂłgicas, Universidad Complutense, 28040 Madrid, Spain Corresponding author Copper minerals (chrysocolla...quartz occur in a small lens of granulite-grade calciteâdolomite marble near SaldĂĄn, CĂłrdoba Province (central...low, 0 to 2 wt. % NaCl eq. Isotopic analyses of calcite give ÎŽ13C values of 0.4â0.9 â° PDB and ÎŽ18O values...of ÎŽ18O for water in isotopic equilibrium with calcite fall into with the Metamorphic Water Box. The ÎŽ34S...crystals, it occurs associated to dolomite (± calcite) (e.g. Markham 1959; Cook 2003; Walstrom 2006) |  | | Journal (article/letter/editorial) | | with gangue composed dominantly of quartz and calcite. Host rocks are Mesozoic sedimentary and intrusive...However, evidence of boiling (such as quartz and calcite textures and the presence of adularia) is noted...gangue minerals including quartz, adularia, and calcite, and striking ore textures that indicate cyclic...with boiling in epithermal veins, such as bladed calcite and adularia, as well as gangue mineral textures...textures such as colloform quartz and lattice-bladed calcite (Dong et al. 1995; Moncada et al. 2012), indicates |  | | Report (volume) | | Mineralogy-_--___----_-___--__--__-_-_-.-_-_____-_-__ Mine workings.._____________-_-_-___-......_..._...__...Porvenir mine__-__--_-_-_._----_______.__-._._.____Vaca mine.-__-----_--_-_-_---------_-.-..-'-.-_____-_Age and...district... _ __-__. In pocket 35. Composite map of mine workings, Huahuaxtla mercury district__________...____ In pocket 36. Geologic map and sections of mine "workings, Huahuaxtla mercury district..__--_-_...___--____-__-_-_-_______-_161 14. Map of the Guillermina mine workings. __ -___--__-____-___ 168 GEOLOGY OF |  | Bonsall, T. A., Spry, P. G., Voudouris, P. C., Tombros, S., Seymour, K. S., Melfos, V. (2011) The Geochemistry of Carbonate-Replacement Pb-Zn-Ag Mineralization in the Lavrion District, Attica, Greece: Fluid Inclusion, Stable Isotope, and Rare Earth Element Studies. Economic Geology, 106 (4) 619-651 doi:10.2113/econgeo.106.4.619 | Journal (article/letter/editorial) | | Fluid inclusion studies of sphalerite, fluorite, calcite, and quartz in carbonate-replacement deposits suggest...equiv). Carbon and oxygen isotope compositions of calcite (ÎŽ13C = â15.6 to â1.5â° and ÎŽ18O = â9.2 to +17.3â°)...yttrium patterns of the Upper and Lower Marbles, and calcite intergrown with sulfides show positive Eu and negative...major areas, Kamariza and Plaka; however, over 1,000 mine shafts and approximately 3,000 km of underground...37°43'N Kamariza Megala Pefka Vlachou (LM) Esperanza Berzeko (LM) Berzeko (UM) Agia Triade (UM) |  | Izaguirre, Aldo, Iriondo, Alexander, Kunk, Michael J., McAleer, Ryan J., Atkinson, William W., MartĂnez-Torres, Luis M. (2017) Tectonic Framework for Late Cretaceous to Eocene Quartz-Gold Vein Mineralization from the Caborca Orogenic Gold Belt in Northwestern Mexico*. Economic Geology, 112 (6) 1509-1529 doi:10.5382/econgeo.2017.4519 | Journal (article/letter/editorial) | | Universidad del PaĂs Vasco, Apartado 644, E-48080 Bilbao, Spain Abstract The Caborca orogenic gold belt is a large...belt of the United States and Mexico and related mine sites and prospects are also shown. Downloaded...Choya Mexicali Coastal Range Morenci Fortuna Mine Betty Lee Age ~57â53 Ma Copper-molybdenum mines...46KD55 Flakes/ aggregates Vidrios-2 La AngĂ©lica mine 32° 5' 6.5" 113° 40' 45.5" 73KD55 Flakes Sonoyta-1...31' 59.0" 113° 5' 3.7" 61KD55 Flakes El CapitĂĄn mine Ejido Aquiles SerdĂĄn 32° 18' 29.2" 114° 22' 15.5" |  | Witt, W. K., Hagemann, S. G., Villanes, C., Vennemann, T., Zwingmann, H., Laukamp, C., Spangenberg, J. E. (2016) Multiple Gold Mineralizing Styles in the Northern Pataz District, Peru. Economic Geology, 111 (2) 355-394 doi:10.2113/econgeo.111.2.355 | Journal (article/letter/editorial) | | Misquichilca area. Both the Pataz batholith and the Esperanza Subvolcanic Complex are of the same Mississippian...hydrothermal alteration and mineralization. The Esperanza Subvolcanic Complex, comagmatic with the Lavasen...evolution of an Fe-rich volatile phase. The Lavasen-Esperanza magma suite is ferroan and weakly alkaline, with...and (3) hydrothermal alteration hosted by the Esperanza Subvolcanic Complex and Lavasen Volcanics in the...Lavasen graben, a repository for the products of Esperanza-Lavasen suite magmatism. The Lavasen graben contains |  | FernĂĄndez-Mort, A., Riquelme, R., Alonso-Zarza, A. M., Campos, E., Bissig, T., Mpodozis, C., Carretier, S., Herrera, C., Tapia, M., Pizarro, H., Muñoz, S. (2018) A genetic model based on evapoconcentration for sediment-hosted exotic-Cu mineralization in arid environments: the case of the El Tesoro Central copper deposit, Atacama Desert, Chile. Mineralium Deposita, 53 (6) 775-795 doi:10.1007/s00126-017-0780-2 | Journal (article/letter/editorial) | | wad, atacamite, paratacamite, quartz, opal, and calcite. The most commonly observed paragenesis comprises...comprises chrysocolla, silica minerals, and calcite and records a progressive increase in pH, which is notably...Madrid, Spain 3 Instituto de Geociencias, UCM-CSIC, C/ JosĂ© Antonio Novais, 28040 Madrid, Spain 4 Mineral...paleoclimatic setting The El Tesoro Central copper mine is located in the Atacama Desert of northern Chile...Tesoro NE exotic-Cu deposits and the Mirador, Esperanza and Llano porphyry-Cu deposits (Fig. 2b, c). According |  | | Journal (issue) | | cristaux de quartz dans les galeries de l'ancienne mine de La Gardette (IsĂšre). Sur ces 9 personnes, seules...bourses aux minĂ©raux, des Ă©chantillons provenant de la mine de la Gardette et d'autres gisements minĂ©ralogiques...micaschistes et mĂȘme les calcaires triasiques. Si la mine du Pontet prĂ©sente un intĂ©rĂȘt archĂ©ologique, celle...for the first time thanks to the advances of this mine. We also want to bring near the lector to the natural...mines dans la rĂ©gion de Cabrales, et q'une autre mine de plomb dĂ©couverte dans le secteur d'Aliba (Aliva) |  | Titley, S. R., Thompson, R. C., Haynes, F. M., Manske, S. L., Robison, L. C., White, J. L. (1986) Evolution of fractures and alteration in the Sierrita-Esperanza hydrothermal system, Pima County, Arizona. Economic Geology, 81 (2) 343-370 doi:10.2113/gsecongeo.81.2.343 | Journal (article/letter/editorial) | | Evolutionof Fracturesand Alteration in the Sierrita-Esperanza HydrothermalSystem,Pima County,Arizona S. R. TITLEY...Consequences, NewMexico87901 Abstract The Sierrita-Esperanza porphyrycoppercomplexis centralto a largefossilhydrothermal...THISpaperpresentsthe resultsof a studyof fracturing Sierrita-Esperanza and fracture-relatedhydrothermalalterationin the...Cooper(1960, 1973), and Titley (1982b). The Sierrita-Esperanza orebody hasbeenanobjectofbothgeneralahdtopical...Thus, there Open-pit mining commencedin 1959 at Esperanza existsa well-established baseof geologicinformation |  | | Report (volume) | | principal igneous formations Alcyone trachyte Esperanza trachyte Oatman andesite . Gold Road latite___________-___...Topography of the Oatman district: A., Hills capped by Esperanza trachyte, 1$ miles south of Oatmau, looking southwest;...-cut just north of the No. 2 shaft of the Gold Dust mine; B, More general view of the Gold Dust vein at the... showing the surface relations of the Gold Road mine; B, Leland Hill from the southeast, looking along...Eastern mine____________________._^_ 4. Quartz and calcite from the dump of the Black Eagle shaft of the Tom |  | | Report (issue) | | In 1915 the rich orebody of the United Eastern mine on the Tom Reed vein was located and produced gold...small-scale leach operations and re-processing of mine tailings has continued to the present. Production...Eastern mine in the Oatman district, and 300,000 tons averaging 0.1 oz per ton gold at the Tyro mine and...tons averaging 0.2 oz per ton gold at the Frisco mine in the Union Pass district (P. W. Durning (Fischer-Watt...deposits of the Oatman area are gold-bearing quartz-calcite veins which occupy fault fissures in Tertiary volcanic |  | | Report (issue) | | 7379(6) c = 5.5523(7) X-ray Powder Pattern: La Esperanza mine, Mexico. 2.966 (100), 3.527 (90), 2.700 (90b)...13.47 7.99 5.67 Total 102.07 100.00 (1) La Esperanza mine, Mexico; by electron microprobe, average of...âopalâ, calcite, zeolites, mimetite, clay minerals. Distribution: From the La Esperanza mine, 3.7 km...district, Durango, Mexico. Name: For the La Esperanza mine, Mexico, from which the mineral was collected...âą 2H2 O, a new mineral species from the La Esperanza mine, Mexico: descriptive mineralogy and atomic |  | | Journal (article/letter/editorial) | | AND ISOTOPE STUDY OF THE RAYAS AG-AU-CU-PB-ZN MINE, GUANAJUATO, MEXICO HELEN MANGO,* HALF ZANTOP,AND...positionalmechanismswere discussedin more detail mine. Figure 2 is a generalizedcrosssectionalong in the...modelof ore the Veta Madre,showingthe stratigraphy mine and other mines in the immediate vicinity. depo...three major tectonostratigraphic terranes:the the mine and consists SierraMadre Occidental,the SierraMadre...studiedmine levels,minor argillicaldeformable Esperanza Formationapparentlyallowed terationoccurslocallywithina |  | Mondillo, N., ArfĂš, G., Boni, M., Balassone, G., Boyce, A., Joachimski, M., Kang, J.S., Villa, I.M. (2018) The Cristal Zinc prospect (Amazonas region, northern Peru) Part I: New insights on the sulfide mineralization in the BongarĂĄ province. Ore Geology Reviews, 94. 261-276 doi:10.1016/j.oregeorev.2018.01.021 | Journal (article/letter/editorial) | | barren of ore and have only local infills of sparry calcite. The middle unit (120 m thick) consists of wacke-...center of Cristal property, namely at Esperanza and Yolanda. The Esperanza occurrence covers an area approximately...performed on: 7 samples from the CR-13-08 drillcore (Esperanza area, UTM latitude 9.374.355, longitude 831.039...84), 13 samples from the CR-18-08 drillcore (Esperanza area, UTM latitude 9.374.369, longitude 831.043)...043), 4 specimens from the CR-07-08 drillcore (Esperanza area, UTM latitude 9.374.405, longitude 831.001) |  | | Report (issue) | | ÎČ = 106.79(5) ° Z = 2 X-ray Powder Pattern: Esperanza mine, Lavrion District, AttikĂ Prefecture, Greece...65 (2) 39.85 12.97 26.92 20.26 100.00 (1) Esperanza mine, Lavrion District, AttikĂ Prefecture, Greece;...sphalerite-rich deposit situated in the contact zone between calcite marble and mica schist. Association: Chalcanthite...aurichalcite, goethite. Distribution: From the Esperanza mine, Lavrion District, AttikĂ Prefecture, Greece...(NH4)2Zn(SO4)2·6H2O, a new mineral from the Esperanza mine, Lavrion, Greece. Eur. J. Mineralogy, 30(4) |  | | Report (issue) | | alteration Structure 133 Ore deposits 134 Drumlummon mine 134 Conclusions 134 References cited 136 132 Contents...Marysville stock 133 Map of the fourth level, Drumlummon mine 135 Map of Colorado showing location of Boulder...Simplified geologic map of the 350 level of Buena mine, Jamestown subdistrict 141 Histograms of fluid-inclusion...average 1.7:1. Gangue includes quartz, varicolored calcite, adularia, chlorite, and minor fluorite. Gold grades...of ore. Primary fluid inclusions in quartz and calcite reflect homogenization Manuscript approved for |  | | Journal (article/letter/editorial) | | vein system is the most productive epithermal AuâAg mine in NW Argentina. It is operated by YMAD, a joint...Government of Argentina. During 2012 and 2013, the mine produced 9000 kg of Ag and 700 kg of Au per year...FarallĂłn Negro mine is located about 6 km to the west of the Bajo de La Alumbrera mine and 320 km southwest...based on LlambĂas 1970, YMAD exploration maps, and mine geology of Bajo de la Alumbrera by Proffett 2003)...for mining purposes, into the Laboreo, Esperanza and Esperanza SE vein segments. The Alto de la Blenda |  | | Journal (article/letter/editorial) | | notably altered. The mostcommonalterationproductis calcite,followed by chlorite, sericite,and kaolin clay...feldsparshave beenconvertedto an aggregate of calcite, epidote, sericite, and albite, and almost invariably...and in a minor vein on the 5th level with pink calcite. Ankeritic dolomiteoccurs in veinletscutting sphaleriteand...sphaleriteand quartz in the Murcielagoand Esperanza veins. Gypsumis widespreadbut not abundant. Most of...Animas veins strike northwest and the Pacasmayo,Esperanza,Pilancones,and Hualgayocveins strike within about |  | | Journal (issue) | | San Pedro Mine in Santa Fe County, and along with his son Phillip is actively exploring the mine for minerals...minerals. The San Pedro Mine is perhaps best known for producing beautiful specimens of finely crystalline...crystalline a !lnd wire gold which have been etched from calcite. It is also w-enowned for large chalcopyrite crystals...malachite and associated with white, scalenohedral calcite crystals that are usually stained with iron oxides...Phillip have also developed a surface exposure at the mine to produce some very nice, single, sceptered quartz |  | | Journal (article/letter/editorial) | | biostratigraphy, facies and environments of the La Esperanza section. N. Aguilera-Franco, U. HernaÌndez Romano...and 3.936 cm/ky for the Cuautla/ Mexcala in La Esperanza, and Ayotzinapa-1 sections. The other sections...four of the seven studied sections (Amacuzac, La Esperanza, Ayotzinapa-1 and Ayotzinapa-2 sections). The...Well sorted textures. Peloids 40 â 80 Am, drusy calcite. Inner ramp, sand shoals, above FWWB. (11) D2...(C) Cyanobacterial limestone (facies A2). La Esperanza, sample NA94-41. (D) Nummloculina-intraclastic-packstone |
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