 | | Journal (article/letter/editorial) | | geochemical study of element mobility in sulfide mine tailings of Fe oxide Cu–Au deposits from the Punta...potential (about 3 wt.% calcite and 4 wt.% pyrite). Acid mine drainage (AMD) with the precipitation of schwertmannite...ferric polymers or colloids in the form of neutral mine drainage (NMD). This would explain the metal enrichments...oxide Cu – Au deposits; Tailings; Carbonates; Acid mine drainage (AMD); Enrichment; Cementation zone; Schwertmannite;...extractions 1. Introduction The formation of acid mine drainage (AMD) subsequent to sulfide oxidation is |  | | Journal (article/letter/editorial) | | 1148-1150). In the Remolinos mine and at Ladrillos de Plata (Fig. 2), where gold and silver, respec tively...chalcopyrite and pyrite. In the region as a whole, however, gold and silver ores are rare in the primary zone. Weathering...great depth of the water table. In the Dulcinea mine, for example, chalcocite, as a product of supergene...the surface (Brown, 1928, p. 186). The Dulcinea mine is near the top of a mountain of resistant metavolcanic...enrichment are much less; for example, in the Remolinos mine enriched ores are not found below 295 feet (Segerstrom |  | | Journal (article/letter/editorial) | | Ericksen (1962), and parts of it are in the overlapping gold, silver, and iron provinces. The zones of supergene...guide to later workers. Unpublished reports of many mine examinations made by Hector Flores W. and Ruiz during...thickness of the Punta del Cobre Formation exposed in mine workings and at the surface is 680 m (Segerstrom...part of the formation, 1.5 km northwest of Teresita mine, contains Crioceras andinum Gerth and other...of a small syncline (PL 3, fig. 2). At the Teresita mine, relatively thick-bedded Abundancia limestone |  | MATHUR, R., Marschik, R., Ruiz, J., Munizaga, F., Leveille, R. A., Martin, W. (2003) AGE OF MINERALIZATION OF THE CANDELARIA Fe OXIDE Cu-Au DEPOSIT ANDTHE ORIGIN OF THE CHILEAN IRON BELT, BASED ON Re-Os ISOTOPES--A REPLY. Economic Geology, 98 (5) 1050-1052 doi:10.2113/gsecongeo.98.5.1050 | Journal (article/letter/editorial) | | 1985, p. 913) occur not far from the El Romeral mine (29Âş42.8' S, 71Âş14.9' W). In regard to the Re-Os...point to oolitic chalcopyrite in the Providencia-Teresita Cu-Au deposits 14 km to the north of La Candelaria...in underground exposures. However, at the Carola mine, chalcopyrite veins and veinlets are observed cutting...and of Farola (an older part of the Las Pintadas mine complex) as a massive sulfide deposit is debatable...Understanding the genesis of iron oxide, copper-gold and magnetite-apatite deposits has been an important |  | | Journal (article/letter/editorial) | | sediment particles enter river systems by discharge of mine or processing waste, tailings dam failures, remobilization...remobilization of mining-contaminated alluvium and mine drainage. The mineralogy and geochemistry of these...metal-bearing particles to rivers include discharge of mine or processing waste, tailings dam failures, remobilization...mining-contaminated alluvium, and mine drainage. Direct discharge of mine tailings, effluent and waste rock...HUDSON-EDWARDS the tailings dam breach at the Bolivian Porco mine in 1996, which released an estimated 235,000 m3 |  | | Journal (article/letter/editorial) | | ..................................... Tungsten Gold 99 102 .........................................mostimportantore depositsare thoseof copper, iron, silver, gold, and manganese. The primary minerals are few in...presentday mining in Chile: Copper Molybdenum Lead Zinc Gold Silver Mercury Iron ore Manganese ore 548,528 metric...tons, 63.2% Fe metric tons, 46.3% Mn Most of the gold and silver and all the molybdenum producedduring...copper--Flores(4) and Ruiz (16); iron--Ruiz (17); gold--Flores(4) and Floresand Ruiz (7); cobalt--Hornkohl(8); |  | | Journal (article/letter/editorial) | | plutonic samples collected near the La Candelaria mine. Interestingly, these samples have low Re/Os (19–43)...nature of the chalcopyrite in the Providencia-Teresita Cu-Au deposits 14 km to the north of La Candelaria...E., and Urqueta, I., 1995, The Candelaria copper-gold deposit, Chile, in Pierce, F.W., and Bohn, J.G. |  | | Show/Event (guide) | | N217 Silver and Stainless Steel. a k Silver The Gold Land, Deira, Dubai Shop # M19-23 Dubai, Deira 28798...pl Booth#: W407 Amber jewelry set in silver and gold. JOGS SHOW | 135 List of Exhibitors aMBer dreaMS...www.amberonly.com Booth#: W208 Amber jewelry in gold and silver, handmade amber necklaces, amber with...supplier and manufacturer featuring finished jewelry in gold and silver along with beads, decor and cameos. ...specializing in sterling silver and gold jewelry from all over the world. Gold vermeil, finished jewelry & findings |  | | Journal (article/letter/editorial) | | million ouncesof silverand 0.4 million ouncesof gold. Five paragenetic stagesaswell asmultipleepisodes...and 5 millionounces of silverand38,000ounces of gold. limestoneof Mesozoicageis unconformably overlain...AndahuaValley, a largeasymmetric Formation.Within the Calera mine, a thick sequence grabenthat boundsthe districton...106troyounces ofsilverand0.4 X 106troyounces of gold. lOOm • Oac 4055 *"..L 4015 ',. 3950 : ...vein showingprincipal mine workings.3800, 3880, 3950, 4015, and 4055 indicatemain mine levels,which repr |  | | Show/Event (guide) | | Amber earrings, pendants, bracelets in silver and gold. AMBER DREAMS 12899 Winged Elm Dr. N. Jacksonville...Amber beads, amber jewelry set in sterling silver & gold. AMBER SEASIDE-JSC Artojo Street 7F Klaipeda, LT...and manufacturer featuring finished jewelry set in gold and sterling silver along with beads, decor, carvings...with semiprecious stones. Designer silver jewelry, gold plated silver jewelry and larimar jewelry. BEAD...years in Hawaii. Original designs in 14K and 18K gold and sterling silver. BLAKE BROTHERS 9332 Stockport |  | | Journal (article/letter/editorial) | | In QuebradaMeldndez,4 km northof the Abundancia mine,the Abundancia Formationconsistsof interbeddedlimestoneand...alongfault planesand in veins. ORE DEPOSITS Copper,gold, silver and iron depositsaboundin the area of Figure...depositsthat have been mined on a small scalefor silver, gold, copper,and iron. Further prospecting,particularly...196I, Facies change in Neocomian rocks of the Teresita-Chula area, Ataeama Province, Chile: U.S. Geological |  | | Journal (issue) | | 46 Loma Larga mine 48 Manganese mine 48 Sacachispas gold mining area 48 Alluvial gold 48 Magnetite 48...Non-metallic mineral occurrences 48 Jerusalein feldspar mine 48 Quarrying operations 49 Brick clays 49 Sand and...sedilnent sampling programme 49 Introduction 49 Gold and silver 49 Arsenic, antimony, bismuth and tellurium...mining and distribution of anomalous stream sediment gold values 47 32 Stream sediment sample location map...from 172 samples, analysed for 27 elements plus gold, are presented as point source infor mation. Within |  | | Report (issue) | | Castrovirreyna district 186 Table IV Mine production and grade of ore, Carmen mine, 1941-1958 . 188 Table V...production, Caudalosa mine, 1927-1957 189 Table VI Mine production and grade of ore, Lira mine, 1941-1958 190...190 Table VII Metal production, San Genaro mine, 1928-1955 191 Table VIII X-ray powder diffraction...Spcctrographic analyses of pyrargyrite froa the San Genaro mine --«* -. - < 252 Table XXXIII Spectrographic analysis...San Genaro mine Plate 6. Composite vein map of the San Julifin section* San Genaro mine Plata 7. |  | | Journal (article/letter/editorial) | | spilite-keratophyre association of Central Kazakhstan, there are gold-pyrite and pyritic polymetallic deposits (Maykain...Paleozoic Sambagawa schists; and the Huelva province in Spain ( Rio Tinto). Cimmerian pyritic deposits are known...skarnmagnetite) and orogenic ( copper porphyry and vein gold-ore) stages. Of the known chalco714 pyrite deposits...Salado and La Pataucha deposits in Aconcagua, Teresita and Frankenstein in Atacama, and Porosuelo and...e ores are known in Aysen Province ( Las Chivas mine). FIGURE 6. Map of distribution of chalcopyrite |  | Gibson, Peter Craig, Noble, Donald C., Benavides, RaĂşl G., Mayta, Oscar T. (1993) Discovery, Development, and Production of a Blind Ag-Au Bonanza in the Calera Vein, Orcopampa District, Peru. International Geology Review, 35 (9) 780-796 doi:10.1080/00206819309465557 | Journal (article/letter/editorial) | | in 1978. A large tonnage of rich ore containing gold as well as silver was discovered in 1983. Reserves...delineated, the most important of which is the rich, gold-bearing bonanza stage. The distribution of the bonanza...silver p r o d u c e r a n d t h e largest private gold p r o d u c e r in P e r u from 1988 t h r o u g...b o u t 3 0 t h o u s a n d troy o u n c e s of gold. Official r e p o r t e d p r o d u c t i o n in...exceptionally large tonnage of rich ore, containing gold as well as silver, was discovered in the Calera |  | | Journal (article/letter/editorial) | | mineralization that occurred in multiple stages. The gold mineralization in these locations is spatially and...phyllic alteration, whereas NE-trending epithermal gold veins at the Banana Creek and Tuvatu North prospects...overprinted by propylitic and phyllic alteration. Gold is accompanied by chalcopyrite, galena, and sphalerite...genetic relationship exists between low-sulfidation gold deposits and alkaline igneous rocks [1–3], especially...there is a notable association among epithermal gold mineralization, a volcanic caldera, and regional |  | | Report (issue) | | Lugo en Mayo de 1975. (Santiago de Compostela, Spain] : Universidad de Santiago de Compostele, 1979....spectrographic analysis of drill core from Sunbeam mine, Custer County, Idaho. [Denver, CO] : U.S. Geological...of Chicago Press, 1987. 207 L364f EARTH SCIENCES SPAIN GALICIA. Estudio del medio natural de las montanas...investigacion cientlfica, 1982. [Santiago de Compostela, Spain] : Universidad de Santiago de Compostela, 1985....Filabres around Macael and Cobdar, south-eastern Spain. Rotterdam : Drukkerij en Uitgeverij, 1967. G(591) |  | | Journal (issue) | | Miguel Calvo (who covers the two major shows in Spain), under Letter from Europe. George Robinson and... C/Arc de Sant Marti 79 Local 08032-BARCELONA (SPAIN) S (3) 4504478 • Fax (3) 4504745 By Appt. only ...E - M - S - T - O - N - E Wulfenite, Red Cloud Mine, La Paz Co., Arizona Send $7.50 for our Mineral...Museum of Barcelona, Spain; the Spanish Institute of Geology and Mining, Madrid, Spain; the Vernadsky State...kouroi, urns and grave steles, the lovely/ghastly gold death masks that Schliemann dug up at Mycenae, the |  | | Journal (article/letter/editorial) | | Regional geological setting of Guanajuato silver-gold deposits and quantitative petrophysical assessment...of the world famous silver-gold deposits type is presented. The silver-gold vein system occurs in the...production between 1701 and 2004 is 214 metric tonnes of gold and 37,000 metric E-mail address: vassallo@unam...displacement of 1200 m near Las Torres mine and of 1700 m at the Valenciana Mine. The Veta Madre vein was discovered...diagenesis (e.g. Gifkins et al., 2005). Near El Cubo mine the Calderones formation includes thin (3–5 m thick) |  | Aiglsperger, Thomas, Proenza, Joaquin A., Lewis, John F., Labrador, Manuel, Svojtka, Martin, Rojas-PurĂłn, Arturo, Longo, Francisco, ÄŽurišová, Jana (2016) Critical metals (REE, Sc, PGE) in Ni laterites from Cuba and the Dominican Republic. Ore Geology Reviews, 73. 127-147 doi:10.1016/j.oregeorev.2015.10.010 | Journal (article/letter/editorial) | | s/n, SC R a IP ÄŽurišová c 08028 Barcelona, Spain *Corresponding autor, e-mail: thomas.aiglsperger@ub...instabilities can occur when producers suffer full-scale mine shutdowns as seen during several strikes held by...Camarioca Sur, La Delta, Cantarrana, and Santa Teresita (e.g. Lavaut, 1998) producing at least 34.263...been divided into various zones and subzones by mine workers and Cuban geologists but the nomenclature...2013; SC R Villanova de Benavent et al., 2014). Mine geologists of Falcondo have subdivided and named |  | | Catalog/List | | Colorado, azurite and malachite in Jerome, Arizona, gold in Wickenburg, Arizona, and wulfenite, mimetite...dollar set from 1794 to 1803 and a collection of gold aurei and solidi representing every Roman and Byzantine...Ward Minera! on QUARTZ RHODOCHROSITE District Mine. Climax Climax olTolg-Yole Lake. County. ncredibly...years to find a specimen rhombs rhombs Climax Mine, ot rhodochrosite $50 OOU 60.000 Ex The ... 8 nn ae from the \ slight ¢ « nax 1g Mine : The Kevin Ward Mineral Exceptional German |  | | Journal (issue) | | Califòrnia, EUA, o la bĂĽtschliĂŻta del districte de Gold Hill, Jackson Co., Oregon, EUA , un mineral format...wulfenita (var. chillagita), força antiga, de la mina “Teresita”, Sant Fost de Campsentelles, el Vallès Oriental |  | | Journal (article/letter/editorial) | | al., 1998; DĂaz and Vivallo, 2001). 2.3.1. Carmen Mine Carmen is an irregular magnetite body elongated...Negra Formation (Fig. 2). The Fe deposits (e.g., Teresita) are Kiruna-type, similar to Carmen but considerably...2) outcrops in the north open pit of the Carmen mine and is accessible on the lower benches. The stock...Santos) located in the vicinity (3 to 10 km) of Carmen Mine. Actinolite in the district crystallized in different...northern Chile and understanding of iron oxide copper-gold mineralization hosted in early Cretaceous igneous | | | Journal (issue) | | Miguel Calvo (who covers the two major shows in Spain). under Leller from Europe. George Robinson and...· E · M · S · T· 0 · N · E Wulfenite, Red Cloud Mine, La Paz Co., Arizona Send $7.50 for our Mineral...Museum of Barcelona. Spain: the Spanish Institute of Geology and Mining. Madrid. Spain; the Vcmadsky State...kouroi. urns and grave steles, the lovely/ghastly gold death masks that Schliemann dug up at Mycenae. the...sitting up on a I O x I 0-cm matrix, from the Akchatau mine, Kazakhstan; not even a large bash in the center |  | | Book | | to the many other sights in the area, such as the gold and silver mines, Gallego Mountain, Indian caves...specific copper mine below the village of Tejaban. Topographical indicate the mine site is the Barranca...Chihuahua can be made in one day. As a friend of mine affectionately the "Choo Choo to Chihuahua," you'll...when the viceroy of New late in the sixteenth Spain (Mexico) ordered the construction of a fort to...excursions into their territory by miners seeking gold and silver, they were forced to work in the mines |
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