 | | 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 Unpublished reports of many mine examinations made by Hector Flores W. and Ruiz during...thickness of the Punta del Cobre Formation exposed in mine workings and at the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) | | 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) | | chalcopyrite-pyrite, chalcopyrite-pyrrhotite,and bornite-chalcopyrite. The chalcopyrite-actinolite-magnetite...Cabezade Vaca, E10rito, and Llamuco (Atacama); the mine E1 Chivato (Talca) is the typicalgold-tourmaline...typical depositis the Las Chivas mine at Lago General Carrera in Aysen. Bornite-chalcopyrite depositsare small... ERICKSEN ores consistof finely disseminated bornite and varying but generallylesser amountsof chalcopyrite;part...Typicaldeposits are E1 SoldadoandLa Pataguain Aconcagua, Teresita and Frankensteinin Atacama,and Portezueloand Santo |  | | 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) | | Tuvatu North prospects. Chalcopyrite, and minor bornite, occurs in quartz–calcite–(adularia) veins in the...polarized) chalcocite (Cct)of and bornite (Cct) Central and bornite Central (e) Ridge Cu prospect. (e)...and chalcopyrite and trace amounts of pyrite, bornite, chalcocite, and covellite. Secondary malachite...and covellite replacement of chalcopyrite and bornite along grain boundaries or in fractures, samples...supergene alteration. Unlike chalcopyrite and bornite, other sulfides (pyrite, sphalerite, and galena) |  | | Journal (article/letter/editorial) | | Paleozoic Sambagawa schists; and the Huelva province in Spain ( Rio Tinto). Cimmerian pyritic deposits are known...orthoclase metasomatites, surrounding ore shows of bornite, chalcopyrite, chalcocite, and sometimes with magnetite...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, 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) | | 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 |  | | 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) | | Minor A G ATACAMITE. CHRYSOCOLLA. CHALCOPYRITE. BORNITE. CHALCOCITE. COVELLITE: EAST OF ANTOFAGASTA DIGENITE...PARAGENETIC SEQUENCE OF PYRITE. CHALCOPYRITE. BORNITE. CHALCOCITE. DIGENITE. COVELLITE. HEMATITE WITH...- CHALCOCITE/BORNITE - BORNITE/CHALCOCITE - PYRITE/CHALCOPYRITE/GALENA OR BORNITE/CHALCOPYRITE ... IN SULFIDE ZONE: SILVER CONCENTRATED WHERE BORNITE/CHALCOPYRITE REPLACED BY DIGENITE/COVELLITE. GALENA...CORRELATE DUE TO LENS-LIKE MORPHOLOGY. SOUTHWEST OF MINE. A GRANODIORITE WITH INCIPIENT TO COMPLETE CHLORITIZATION |  | | 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 |  | | Catalog/List | | 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... initely a unique opportunity. From the Dukat Mine, Dukat Gold-Silver Ore Field, Magadan Oblast’, East | | | 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...these two cases breathlessly end ). from the l'ouyva mine near Saranpaul in the Polar Urals. Russia. there |  | | 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 |  | | 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) | | "Metallo" derives from the Greek "metalleion"-a mine, after "metallan"-to search for; hence, metallogenic...used ones, giving alternative names or principal mine or mines where they may help the user identify the...the entry. Terms such as district, area, mine, or prospect are added to many names to give additional...perimeter A9 and hachuring or an outcrop line, C. A mine location within a large district may be designated...is replaced with a hyphen, thus 6C37-6X, a potash mine location within an evaporite basin. The final digit |  | | Report (issue) | | (HIDDEN CREEK AND BONANZA MJNE) APEX ARGONAUT MINE ASHLOO MINE ASITKA PEAK (ASITKA) ASPEN GROVE AREA ASTLAIS...BARRINGTON RIVER AREA BASQUE BAYONNE MINE BEAVERDELL AREA (HIGHLAND-BELL MINE, ETC.) BENSON RIVER AREA (EMPIRE...BETHLEHEM MINE, VALLEY, ETC. BIRCH ISLAND (REXSPAR) BLACKHORN MOUNTAIN BLUE GROUSE MINE BLUEBELL MINE COMMODITIES...AREA BOOTJACK LAKE (CARIBOO-BELL) BOSS MOUNTAIN MINE BOULDER CREEK BRALORNE AND PIONEER MINES BRANDYWINE-DORITY...CREEKS (NORTHAIR, VAN SILVER) BRENDA MINE BRISCO BRITANNIA MINE BROMLEY GLACIER AREA BUCCANEER AND MUSKETEER |  | | Journal (issue) | | fire-prevention and replanting. MINERALS Aluminium Spain.-The Catalonian bauxite deposits are described by...Eocene. The best sample of bauxite was from this mine, and yielded the following percentages : silica...coloured marls alternating with gypsum. In the Marta mine, bauxite is found in blocks, scattered for some...size. On the high part of the hill on which the mine is situated there is a breccia in gritty limestone...formation which overlies the limestones. I n the Nieves Mine the bauxite is white, finely granular and co1npact |  | | Report (issue) | | reported to have been collected from Guaysimi Alto mine, south of Nambija in the main skarn bell. This bi...0 km v.ri.de. Accessible outcrops occur ac Peggy Mine, near Sigsig; below the Agoyan dam near Barios;...within the bedded Piuntza sequence of Ca1npan l � Mine. The petrography of the skarns ( Beddoe-Stephens...Turner of Zamora, reportedly from Guaysimi Alto mine, near Nambija (photo: RAJ). (c) Discovery of Urcucocha...(green) and adularia (pink) skaro from Campanilla mine near Nambija. Pyrite and chalcopyrite are also present |  | | Report (volume) | | "Adaro" de Investigaciones Mineras S. A. Madrid, Spain. Rev. Geographie Montreal-La Revue de Geographie...Guayaguayare, in Caribbean Geol. Conf., 4th, Port-of-Spain, Trinidad and Tobago, 1965, Trans.: Arima, Trinidad...of the Milford Flat quadrangle and the Old Moscow Mine, Star District, Beaver County, Utah [abs.]: Dissert...in the Roberts Mountains Formation, Carlin gold mine, Eureka County, Nevada, in International geochemical...Puerto Rico, in Caribbean Geol. Conf., 4th, Port-of-Spain, Trinidad and Tobago, 1965, Trans.: Arima, Trinidad |  | | Report (volume) | | Investigaciones Geol6gicas "Lucas Mallada". Madrid, Spain. Evolution- Evolution. International journal of...rock-burst-prone area at a 4,000 foot depth, Galena mine, Wallace, Idaho: U.S. Bur. Mines Rept. lnv. 6997...Anthony, L. M. The discovery of the Keystone gold mine, Cleary Hill area, Fairbanks district, Alaska-A...Mineral Company's Kings Mountain, N.C., spodumene mine: Rocks and Minerals, v. 42, no. 6, p. 403-406, illus...173-l76,illus.,l967. 08074 Breland, James E. Coal mine production, in Coal in 1966: Mining Eng., v. 19 |
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