 | | 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) | | Elena, and Pedro de Valdivia. The great porphyry-copper deposits of Chuquicamata, El Salvador, and Potrerillos...fill deposits and locations of principal porphyry-copper deposits Downloaded from https://pubs.geoscienceworld...(Nordenskjold, 1926, p. 1148-1150). In the Remolinos mine and at Ladrillos de Plata (Fig. 2), where gold and...to the usual conditions, fairly good values in copper were found in the underlying zone of primary chalcopyrite...great depth of the water table. In the Dulcinea mine, for example, chalcocite, as a product of supergene |  | | Journal (article/letter/editorial) | | faults strike northeast. The entire area is in the copper metallogenetic province of Ruiz and Ericksen (1962)...from the contact metamorphic zone and hypogene copper ore from near the deep valley of the Rfo Copiapo...guide to later workers. Unpublished reports of many mine examinations made by Hector Flores W. and Ruiz during...Punta del Cobre. Mining and the beneficiation of copper ores are the chief industries. In 1964, the principal...Agustina, Galleguillos, Maria Teresa, and Remolinos (copper), and Adrianitas and Cerro Iman (iron). Of the |  | 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 (29º42.8' S, 71º14.9' 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...2001b). Understanding the genesis of iron oxide, copper-gold and magnetite-apatite deposits has been an |  | | 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) | | plutonic samples collected near the La Candelaria mine. Interestingly, these samples have low Re/Os (19–43)...Cobre district, and in the TeresitaProvidencia copper district to the north. Evidence for nearby syndepositional...nature of the chalcopyrite in the Providencia-Teresita Cu-Au deposits 14 km to the north of La Candelaria...Candelaria copper-gold deposit, Chile, in Pierce, F.W., and Bohn, J.G., eds., Porphyry copper deposits |  | | Journal (article/letter/editorial) | | ......................................... 98 Copper .................................................mineralassemblage.The mostimportantore depositsare thoseof copper, iron, silver, gold, and manganese. The primary...sedimentary, contact-metasomatic and magmatic. Copper depositsare typically hydrothermal, manganesedepositsare...indicatethe magnitudeof presentday mining in Chile: Copper Molybdenum Lead Zinc Gold Silver Mercury Iron ore...(2, 3), Miller and Singewald(14), and Kuntz (9); copper--Flores(4) and Ruiz (16); iron--Ruiz (17); gold--Flores(4) |  | | 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...metal contaminants [43]. Metals such as lead, zinc, copper can adsorb to or co-precipitate with iron mono-sulphide...(ZnS) > cadmium sulphide (CdS) > Galena (PbS) > copper sulphide (CuS) > pyrite (FeS2)—reflecting the highest |  | | Report (issue) | | Mansue, L.J., 1976, Water resources of the proposed copper mining area, Puerto Rico, 1958-74 (2 Parts): U...87-4039, 26 p. Jordan, D.G., 1970, Water and copper-mine tailings in karst terrane of Rio Tanama" basin...83-4071, 33 p., 1 pi. Zack, A.L., Rodriguez-Alonso, Teresita, and Roman-Mas, Angel, 1987, Puerto Rico ground-water...AUTHOR-Continued Zack, A.L., Rodriguez-Alonso, Teresita, and Roman-Mas, Angel, 1987, U.S. Virgin Islands...81-413, 1 sheet. Jordan, D.G., 1970, Water and copper-mine tailings in karst terrane of Rio Tanama basin |  | | Journal (article/letter/editorial) | | Comparative metallogenic description of the pyritic and copper porphyry associations G.A. Tvalchrelidze To cite...Comparative metallogenic description of the pyritic and copper porphyry associations, International Geology Review... Comparative metallogenic description of the pyritic and copper porphyry associations Downloaded by [University...comparative metallogenic description of the pyritic and copper porphyry ore associations has to be based on personal...formation of mineralization of the pyritic and copper porphyry associations: 1) primary geosynclinal |  | | 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...background 12 Graph showing relation of lead and copper to silver in typical base-metal ores ..« 54 Figure |  | | Journal (article/letter/editorial) | | In QuebradaMeldndez,4 km northof the Abundancia mine,the Abundancia Formationconsistsof interbeddedlimestoneand...slickensides alongfault planesand in veins. ORE DEPOSITS Copper,gold, silver and iron depositsaboundin the area...have been mined on a small scalefor silver, gold, copper,and iron. Further prospecting,particularly near...196I, Facies change in Neocomian rocks of the Teresita-Chula area, Ataeama Province, Chile: U.S. Geological |  | | Journal (article/letter/editorial) | | 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...splits alongA-A' in Figure 4. Numbersindicatemain mine levelsand horizontally ruledareasarestopes minedasofJuly...are commonwithin the substagein someareasof the mine are thoughtto be part of the later bonanzastage(seebelow) |  | | 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...49 Arsenic, antimony, bismuth and tellurium 49 Copper, lead, zinc, cadmium and barium 51 Chromium, nickel...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 |  | | Book | | heart of the Madre Occidental to the world famous Copper Cam >n one is able to contemplate the Majestic...Water Light and Stone SI. 48 postage) and Mexico's Copper Canyon ( S 14. 95 + SI. 05 postage), please contact:...AZ 85717 Tucson, (602) 881-0243 S.J. Photo Copper Canyon — Barranca del Cobre t^ Chihuahua, Mexico... DEDICATION 5-20 THE COLOR AND EXCITEMENT OF COPPER CANYON Photography Richard D. Fisher Luis G. Verplancken...Luis G. Verplancken, S.J. —Rails to Adventure — Copper and Urique Canyons — Waterfalls of the Sierra Madre |  | | 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 |  | | Report (issue) | | Lugo en Mayo de 1975. (Santiago de Compostela, Spain] : Universidad de Santiago de Compostele, 1979....(400)523 So88u COPPER MINES AND MINING MAPS. Argall, George Oats. Open pit copper and molybdenum mines...underground porphyry copper and molybdenum mines and major undeveloped porphyry copper and molybdenum deposits... Inc., [1984?]. M (000)435 1984a COPPER ORES--CONGRESSES. Copper Symposium (1984 : Moscow, R.S.F.S... Geology and metallogeny of copper deposits : proceedings of the Copper Symposium, 27th International | | | 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...highly aesthetic, flattened, adlcnscenl native copper specimen measuring 22 cm: and from ycd, Urals, |  | | Catalog/List | | Wickenburg, Arizona, and wulfenite, mimetite and copper minerals in southern Arizona. In 1996, at the...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 (article/letter/editorial) | | University, Pullman, Washington 99164-2812 AND TERESITA F. MONTENEGRO CONICET, Universidad Nacional de...shares the following features with Cu skarn-porphyry copper deposits in other parts of South, Central, and...front. Overall, Caicayén is similar to worldwide copper skarn systems emplaced at shallow levels, but it...pulses; thus, resulting in lower copper grades than mined in other copper skarns. Introduction THE NORTH-CENTRAL...NORTH-CENTRAL ANDES of Chile is a well-known porphyry copper province with many large deposits (Munizaga et |  | | Journal (article/letter/editorial) | | used previously in the exploration for porphyry copper and epithermal gold mineralization [19–24]. The...magmatic values [53]epithermal and typical porphyry copper deposits. fluids circulating within the Navilawa...[59], Tonga Trench, Tonga [60], Betic Cordilleras, Spain [61,62], and Mururora Atoll, French Polynesia [63]...low-sulfidation epithermal gold deposit, porphyry copper–gold-style mineralization and several other epithermal...residents of Navilawa village. The assistance of Teresita Chua, Ritushree Chatterjee, and Blake Bergerud |  | | Journal (article/letter/editorial) | | al., 1998; Díaz 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 |  | 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...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...pattern represents stoped vein. After Orcopampa mine staff. Downloaded by [University of Montana] at |  | | 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 |  | | Report (issue) | | Willden __________ _ 193. Geology of the ~ount Wheeler mine area, White Pine County, Nevada, by Donald H. Whitebread...phenoclasts in laminated glaciolacustrine deposits, Copper River Basin, Alaska, by Henry R. Schlnoll-----..._ 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 |
|
