 | | Journal (article/letter/editorial) | | geochemical study of element mobility in sulfide mine tailings of Fe oxide CuâAu deposits from the Punta...hematite and chalcopyrite. Gangue is dominantly calcite with minor quartz. The host silicate assemblage...tailings have excess of acid potential (7.1 wt.% calcite and 3.5 wt.% pyrite), whereas the older downstream...40 wt.% calcite and 2 wt.% pyrite) and intervals with high acid potential (about 3 wt.% calcite and 4 wt...wt.% pyrite). Acid mine drainage (AMD) with the precipitation of schwertmannite (pH 3.15) and chalcoalumite |  | | 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 Unpublished reports of many mine examinations made by Hector Flores W. and Ruiz during...thickness of the Punta del Cobre Formation exposed in mine workings and at the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 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, efïŹuent 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) | | 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...substitute for calcium, magnesium and iron in calcite (CaCO3), aragonite (CaMg(CO3)2), ankerite (Ca(Fe...alkalinity [85]. The processes may be net-neutralizing in mine water with high sulphate to iron ratios because |  | | Journal (article/letter/editorial) | | r the samereason,althoughin contrastto quartz,calcite generally didnotformduringtheearliestpartof theparagenetic...Cabezade Vaca, E10rito, and Llamuco (Atacama); the mine E1 Chivato (Talca) is the typicalgold-tourmaline...somedeposits. A typical depositis the Las Chivas mine at Lago General Carrera in Aysen. Bornite-chalcopyrite...Typicaldeposits are E1 SoldadoandLa Pataguain Aconcagua, Teresita and Frankensteinin Atacama,and Portezueloand Santo...a maximum dimension of 20 to 30 m. The Llamuco mine near Salamanca is a typical scheelitedeposit. |  | | 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) | | AndahuaValley, a largeasymmetric Formation.Within the Calera mine, a thick sequence grabenthat boundsthe districton...Pisacatuff, characterizedby the presenceof chlorite,calcite,pyrite, andsericitethat appearsto have formedprior...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...splits alongA-A' in Figure 4. Numbersindicatemain mine levelsand horizontally ruledareasarestopes minedasofJuly |  | | Journal (article/letter/editorial) | | In QuebradaMeldndez,4 km northof the Abundancia mine,the Abundancia Formationconsistsof interbeddedlimestoneand...that have replacedearlier silver minerals and calcite: cerargyrite,iodobromite,bromyrite,embolite,and...196I, Facies change in Neocomian rocks of the Teresita-Chula area, Ataeama Province, Chile: U.S. Geological |  | | Journal (article/letter/editorial) | | Chalcopyrite, and minor bornite, occurs in quartzâcalciteâ(adularia) veins in the Kingston deposit associated...propylitic alteration consisting of calcite epidote(Cal) (Ep)inand calcite (Cal) photomicrograph of propylitic...V2 O3 . Epidote that coexists with chlorite and calcite in propylitic alteration varies in composition...epidote and chlorite filling voids between the calcite (Figure 3c). Sulfides and oxides associated with...consists primarily of dense quartz, adularia, calcite, and pyrite veins (Figure 8b,c). Pyrite and chalcopyrite |  | | 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 âą 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 (issue) | | crystals on matrix, 17.2 cm, from the NâChwaning 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 NâChwaning I mine, opened in 1972, yielded |  | Denison, R.E, Koepnick, R.B, Burke, W.H, Hetherington, E.A, Fletcher, A (1997) Construction of the Silurian and Devonian seawater 87Sr/86Sr curve. Chemical Geology, 140 (1) 109-121 doi:10.1016/s0009-2541(97)00014-4 | Journal (article/letter/editorial) | | Route 6, Box 353B, Tool, TX 75143, USA e 7105 Teresita Dr., Dallas, TX 75227, USA Received 16 August...sheared packstone sheared grainstone Location: Spain 2827 Portilla 2844 Baregienne Givetian Eifelian... SrrMg ratios of Late Devonian abiotic marine calcite: Implications for the composition of ancient seawater |  | | Journal (issue) | | occurrences 46 Cerro Pelado area 46 Loma Larga mine 48 Manganese mine 48 Sacachispas gold mining area 48 Alluvial...Non-metallic mineral occurrences 48 Jerusalein feldspar mine 48 Quarrying operations 49 Brick clays 49 Sand and...for example to the north of La Bocana near Santa Teresita, and westwards towards the Quebrada Tahufn Grande... collected from the Rio Piedras near to Santa Teresita (Aspden et al., 1992 and Figure 5). The K Ar...Magmatitic, biotite orthogneisses Q. Piedras, Sta Teresita area (La Avanzada 6212/959561) Biotite Muscovite | | | 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...others, and a colorless, ftawJeas, English-like calcite twin almost 20 cm long. From Dzhezkazgan, Kazalchsran |  | | Catalog/List | | memories are of collecting quartz in Montana, calcite in Utah, silver, galena, sphalerite, and amethyst...Ward Mineral Collection 7 (ener weapYILVER, CALCITE, & ACANTHITES L Kongsberg Silver Mines â ' Kongsberg...combination of native wire silver growing atop calcite crystals with acanthite. This represents one of...there are two absolutely perfect rhombs of white calcite with sharp crystals of gray acanthite to the left...Ward Minera! on QUARTZ RHODOCHROSITE District Mine. Climax Climax olTolg-Yole Lake. County. ncredibly |  | | 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 (article/letter/editorial) | | University, Pullman, Washington 99164-2812 AND TERESITA F. MONTENEGRO CONICET, Universidad Nacional de...characterized by the assemblage chlorite-epidote-calcite-actinolite (determined both optically and by XRD);...epidote and calcite; (2) hornblende replaced by actinolite-epidote-calcite or chlorite-calcite; (3) patchy...patchy replacement of the groundmass by calcite, epidote, or chlorite and clay minerals; and (4) abundant...has been completely replaced by chlorite (Chl), calcite (Cc), and epidote (Ep). B. Biotite hornfels cut |  | | Journal (article/letter/editorial) | | 2016 Available online 28 January 2016 Keywords: Calcite Apatite Fluoride Replacement Pseudomorphism Di...because it is a relatively pure calcium carbonate (calcite) rock with regular grain size (average 200 ÎŒm)...ÎŒm), and the pseudomorphic replacement of calcite by apatite has been previously demonstrated (e.g. Ames...of the expected mineral products. SpeciïŹcally, calcite (CaCO3), tricalcium phosphate (TCP â Ca3(PO4)2)...measured in this study. In experiment sets 1, 2 and 3 calcite, HAP and TCP peaks are present (e.g. Fig. 1a) and |  | | Journal (article/letter/editorial) | | Chile. This belt includes the large Candelaria mine and a group of middle- and small-sized mines in...biotite-potassium feldspar, or albite-chlorite ± calcite alteration. Mineralization at Candelaria-Punta...â€236°C of saline fluid inclusions in late-stage calcite. Oxygen isotope combined with microthermometric...signatures of fluids in equilibrium with late calcite suggest mixing with a nonmagmatic fluid (e.g.,...of magmatic origin. Anhydrite from the Candelaria mine paragenetically overlaps with chalcopyrite. Fluid |  | | 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) | | except the Dale Beck Valley, Dry Gill and Carrock End Mine. Grahamis hoping to get the permit system properly...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...amethyst, fluorapatite and tourmalines. Rossinguranium mine, a uraniferous granite, was also mentioned. Rick |  | Gibson, Peter Craig, Noble, Donald C., Benavides, RaĂșl 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...volcanics, characterized by the presence of chlorite, calcite, pyrite, and sericite, that appears to have formed...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 |  | Denison, R.E., Koepnick, R.B., Fletcher, A., Howell, M.W., Callaway, W.S. (1994) Criteria for the retention of original seawater 87Sr86Sr in ancient shelf limestones. Chemical Geology, 112 (1) 131-143 doi:10.1016/0009-2541(94)90110-4 | Journal (article/letter/editorial) | | Dallas, Richardson, TX 75083-0688, USA. P7105 Teresita Trail, Dallas, TX 75227, USA. rCollege of Science...and Sr/Mg ratios of Late Devonian abiotic marine calcite: Implications for the composition of ancient seawater |  | | Journal (issue) | | aragonite in the mother-of-pearl layer and as calcite in the prismatic layer. The X-ray diffractograms...producing calcite ~ mantle cel ls prod ucing arago nite IIlIIIIl prisma tic layer (calcite) ~ mot...of the shell. It is formed by small prisms of calcite crystals (CaC03, trigonal). The prismatic layer...influence strongly the crystallization of the calcite and aragonite crystals. More details follow in...in Figure 1). The formation of the crystals as calcite or aragonite is determined by the J. Gemm., 1994 |  | | Journal (issue) | | Luzonite Pandaite copper arsenic sulfide Chinkuashih mine, Keelung, T aiw an 4x5 $ 5 0 .0 0 , 2x3 $ 2 0 .0...specim ens such as a cleavage rhom bohedron o f calcite upon which a 1.0 mm thick coating of m alachite...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 aiteâ sm all crystals. G erm i nal (locality) |
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Teresita Mine, Riosa, Asturias, Spain