 | | 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) | | 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 |  | | Report (issue) | | been vorkad to depths over 150 meters. Galena, sphalerite, chalcopyrite, and tetrahedrite are eooaon to...did not exceed 350° C. The low iron content of sphalerite suggests that most of the basc^oatal su If idea...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 |  | | Journal (article/letter/editorial) | | ochrosite containing bandscomposed largelyof sphalerite andothersulfidemineralsor tetrahedrite.Richorescontain102to...metal valuesof the Calera system.Late quartz and sphalerite+ galenaveinswith barite, marcasite,and stibnite...AndahuaValley, a largeasymmetric Formation.Within the Calera mine, a thick sequence grabenthat boundsthe districton...vein showingprincipal mine workings.3800, 3880, 3950, 4015, and 4055 indicatemain mine levels,which repr...andsplitRamal1, respectively. ModifiedafterOrcopampa mine staff. Rocksrich in sericiteand The locationsof |  | | Journal (article/letter/editorial) | | 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 Unpublished reports of many mine examinations made by Hector Flores W. and Ruiz during...thickness of the Punta del Cobre Formation exposed in mine workings and at the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...the Esperanza mine, the fault strikes N. 10° W. and dips 70° E. North of the Esperanza mine, the fault seems |  | | Journal (article/letter/editorial) | | sediment contamination; redox transitional zone; metal mine; oxic-anoxic interface; ferrihydrite; sulphide;...traditional approaches to management and remediation of mine water pollution tended to focus on point sources...226 water bodies known to be impacted by non-coal mine water pollution in England and Wales show evidence...mono-sulphide (FeS) > nickel sulphide (NiS) > sphalerite (ZnS) > cadmium sulphide (CdS) > Galena (PbS)...alkalinity [85]. The processes may be net-neutralizing in mine water with high sulphate to iron ratios because |  | Gibson, Peter Craig, Noble, Donald C., Benavides, Raúl 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) | | (1975), and unpublished mapping by the Orcopampa mine staff and K. E. Swanson. Manto Tuff is locally...sulfides and sulfosalts—largely tetrahedrite, sphalerite, galena, chalcopyrite, and pyrite—occur as bands...vein showing development of the main ore shoot. The mine workings are projected to a vertical plane with...1988; D=January, 1992. E=June, 1993. Numbers are mine levels that represent approximate elevations. Qal...Tuff, Tsr = Santa Rosa volcanics. After Orcopampa mine staff. FIG. 6. Cross section along A-A' in Figure |  | | Journal (article/letter/editorial) | | North America, P r o terozoic pyrite-chalcopyrite-sphalerite deposits, syngenetic with the quartz porphyries...complex composition (pyrite, siderite, galena, sphalerite, chalcopyrite, and sometimes cinnabar) have been...Paleozoic Sambagawa schists; and the Huelva province in Spain ( Rio Tinto). Cimmerian pyritic deposits are known...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 |  | | Journal (article/letter/editorial) | | Gold is accompanied by chalcopyrite, galena, and sphalerite in quartz–pyrite veins that also have a Ag–As–Hg–Te...chalcopyrite and bornite, other sulfides (pyrite, sphalerite, and galena) show no evidence of replacement...abundant as disseminations (Figure 3e), whereas sphalerite is only associated with veins (Figure 8d) and...(d) Patch of quartz (Qtz), epidote (Ep), and sphalerite (Sp) in micromonzonite in the Banana Creek prospect...Patch Patch of quartz (Qtz), epidote (Ep), and sphalerite (Sp) in micromonzonite in the Banana Creek prospect |  | | Journal (issue) | | except the Dale Beck Valley, Dry Gill and Carrock End Mine. Grahamis hoping to get the permit system properly...such as siderite, quartz, millerite, galena, sphalerite, siegenite, ankerite, hattchetite, and the latest...still very much a 'frontier place'. One supposed mine was started by a character called Otto van Stryk...Stryk who thought he had found a huge iron mine. Alas, he never got any useable ore out of it. Rick went... So now it is recognised as a potential uranium mine! Another anecdote involved a light plane brought |  | | Catalog/List | | in Montana, calcite in Utah, silver, galena, sphalerite, and amethyst in Creede, Colorado, azurite and...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...silver was found in the late 1970s at the Dukat Mine measures which is mainly known by 6 cm Ex: Helmut |  | | Journal (issue) | | Tampa, FL Correspondents Miguel Calvo Zaragoza, Spain Michael P. Cooper Nottingham, England Thomas P....ecord Articles Rare sulfosalts from the Van Silver mine, British C olum bia...............................Balacko Famous mineral localities: The Brownley Hill mine, Alston Moor, Cumbria, England....................COVER: ATACAMITE in GYPSUM, 6.8 cm, from the Lily mine, lea, Peru. Irv Brown collection; Jeff Scovil photo...British Columbia the Silver Tunnel o f the Van Silver mine has produced hundreds o f rare and beautiful crystal |  | | Journal (issue) | | Tampa, FL Correspondents Miguel Calvo Zaragoza. Spain Michael P. Cooper Nottingham, England Thomas P....BOURNON1TE crystals on quartz, 8 cm, from the Herodsfoot mine, Liskeard, Cornwall. Stephen Smale collection and...r specimens in the future. INTRODUCTION Boulby mine is situated in the county o f Cleveland on the northeast...is sold for agricultural use, in fertilizers. The mine has recently been reported in mineralogical journals...and hilgardite in the sylvinite ore at the Boulby mine has been recognized since mining began in the early |  | | 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...sitting up on a 10 x 10-cm matrix, from the Akchatau mine, Kazakhstan; not even a large bash in the center |  | | Journal (article/letter/editorial) | | Chile. This belt includes the large Candelaria mine and a group of middle- and small-sized mines in...ratios of chalcopyrite, pyrite, pyrrhotite, and sphalerite from the Bronce, Candelaria, Las Pintadas, Santos...of magmatic origin. Anhydrite from the Candelaria mine paragenetically overlaps with chalcopyrite. Fluid...25° 70° 69° 70˚15' W b) Atacama Fault Zone Teresita Copiapó N Taltal Providencia Prospect Manto...Q. Paipote Ru ta Closed mine Carmen Chañeral 5-P an am eri ca na Mine in operation 26° Mantos |  | | Journal (article/letter/editorial) | | University, Pullman, Washington 99164-2812 AND TERESITA F. MONTENEGRO CONICET, Universidad Nacional de...pyrite, chalcopyrite, pyrrhotite, magnetite, sphalerite, enargite, and gold are located within the potassium...pyrrhotite, and marcasite and minor amounts of sphalerite and chalcopyrite. These occur as disseminations...crosscutting the clinopyroxene and magnetite. Sphalerite is most abundant near the skarn-marble contact...chlorite, illite, marcasite, chalcopyrite, and sphalerite occur in limestone at some skarn-carbonate and |  | | Journal (issue) | | fluorite crystal group, 7 cm, from the Huanzala mine, Dos de Mayo Province, Peru. Marty Zinn collection;...province, department of Huanuco Huanzala mine Mercedes mine Chiurucu mine Uchucchacua district, Dos de mayo...mayo province, department of Huanuco Hercules mine, Ticapampa district, Recuay and Aija provinces, department...Carrion province, department of Pasco Colquijirca mine, Cerro de Pasco province, department of Pasco Atacocha...Huarochiri province, department of Lima Santa Rita mine, Morochocha district, Yauli province, department | | | 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...sitting up on a I O x I 0-cm matrix, from the Akchatau mine, Kazakhstan; not even a large bash in the center...dramatic, very large specimens of ftuorite, galena, sphalerite, pyrrhotite and others, and a colorless, ftawJeas |  | | Journal (issue) | | crystals on matrix, 17.2 cm, from the N’Chwaning I mine, collected in 1978. Private collection and photographer...Show and Riverpark Inn Rhodochrosite, Sweet Home Mine, USA, 10 cm Photo: Malte Sickinger MARCUS BUDIL...budil-minerals.com Chrysocolla on Malachite Mashamba West Mine Democratic Republic of Congo 26 cm - Joe Budd Photo...mineral shows worldwide! Rhodochrosite - Sweet Home Mine, Colorado - 13cm | Brazilianite - Minas Gerais,...from the Hotazel mine emerged onto the international market. The N’Chwaning I mine, opened in 1972, yielded |  | | Journal (article/letter/editorial) | | 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)...55 ± 0.2 Ma, respectively. Close to the Peregrina mine (Fig. 3) a dacitic lava dome is exposed. This structure...area located south of the tail ponds of El Cubo mine by Báez-López (2014) are 33.0 ± 0.25 and 33.2 ±...the deep ore bodies is chalcopyrite + galena + sphalerite + adularia + quartz + acanthite (Vassallo, 1981; |  | | Book | | - Bedford United Mine 140 1986 - 1989 More Foreign Travel 154 1990 - 1999 Spain and More 192 2000...David Lloyd laddering down a shaft at Bedford United Mine, Devon. Introduction I was born in Bristol on...time, however, as we were committed to movin g to Spain. My friendship with Ian Jones began in February...Tungsten Mine, at Plympton, Devon, followed by an attempt to rework the famous Tsumeb Mine in Namibia...In 1988 we bought our first property in Southern Spain, in the small mountain village of Competa, 16 km |  | | Report (issue) | | Willden __________ _ 193. Geology of the ~ount Wheeler mine area, White Pine County, Nevada, by Donald H. Whitebread..._ 229. Facies change in Neocomian rocks of the Teresita-Chula area, Atacama Province, Chile, by Kenneth...stress distribution around coal mine workings in Sunnyside No. 1 mine, Utah, by Frank W. Osterwald---...Accident mine American mine Bright Star mine Brown Bear mine Brunswick mine Calmich mine Centenial mine Eldorado...Eldorado mine Franklin mine Gladstone mine Greenhorn mine (sulfide) Honeycomb mine JIC mine Larry mine Mad |  | | Journal (issue) | | Luzonite Pandaite copper arsenic sulfide Chinkuashih mine, Keelung, T aiw an 4x5 $ 5 0 .0 0 , 2x3 $ 2 0 .0...lina: Buoy #1 m ine Ledford C ove m ine Big Ridge mine A llm an C ove m ine is requested to send sm all...reliable W il son, W illi am H., (1 96 4) T h e Kirwin Mine ralized A rea , Park C ou n ty, W y o m in g , G...1971 11 grew surrounding the M orro Velho gold mine, djalm aite— sm all crystals. G erm i nal (locality)...known as “ Mr. F olch ” ), I was able to visit Spain in late Septem ber, 1970, and spend m ore than two |  | | Book | | . . . . . . . . 147 X Contents El Aguilar Mine: An Ordovician Sediment-Hosted Stratiform Lead-Zinc.... . . . . . . . . . . . . . . . . 279 Machcan Mine: A Pb-Zn Ore Deposit in Pucara Sediments of the... Contents Sulfur Isotope Studies in the Zinc-Lead Mine San Vicente, Central Peru H. Gorzawski, L. Fontbote... . . . . . . . . . . . . . . 413 The Agustina Mine, a Volcanic-Hosted Copper Deposit in Northern Chile.... . . . . . . . . . . . . 449 The Cerro Negro Mine, Chile: Manto-Type Copper Mineralization in a Volcaniclastic |  | | Report (volume) | | gastropods occur in the thin beds at Las Animas mine and 0.75 km west of Arquitos. The ammonites also...nearly to El Jagiiey, undiminished in thickness. A mine opening at San Martin Ajuchitlan, 4 km west-southwest...circular shape is in the vicinity of the Poder de Dios mine, 5 km north of Final de Amoles. This plug is 800...it is cut in the underground workings of a large mine at San Martin Ajuchitlan. Pena de Bernal is probably...edge of the Rio Blanco stock, at the Cueva del Oro mine. The only known place in the area where contact-metamorphic |
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