 | | Journal (article/letter/editorial) | | Central Atacama Province, Chile Abstract: Geologically, the central part of Atacama Province straddles the...contact between the Andean batholith of western Chile and the stratified rocks to the east. Apophyses...The entire area is in the copper metallogenetic province of Ruiz and Ericksen (1962), and parts of it are...hypogene ore deposits in Chile are represented in the central part of Atacama Province. However, most of the...References cited 317 Figure 1. Index map of Atacama Province, Chile . . . 306 2. Locations of figures in Plates |  | | Journal (article/letter/editorial) | | sulfide mine tailings of Fe oxide Cu–Au deposits from the Punta del Cobre belt, northern Chile Bernhard...belt, south of Copiapó, Atacama desert, northern Chile, are geochemically (largely using sequential extractions)...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 |  | | Journal (article/letter/editorial) | | METALLOGENETIC CARLOS RUIZ PROVINCES F. AND GEORGE OF CHILE, S. A. • E. ERICKSEN CONTENTS PAGE Abstract........... ABSTRACT The metalliferousdepositsof Chile tend to be restrictedto well defined metallogeneticprovinces...synthesis of the knowledgeof the ore depositsof Chile basedon studiesnow beingcarriedout and on publishedand...ore deposits. Most of the known ore depositsof Chile are in the northern half of the country; relativelyfew...1960) indicatethe magnitudeof presentday mining in Chile: Copper Molybdenum Lead Zinc Gold Silver Mercury |  | | Journal (article/letter/editorial) | | CHANARCILLO SILVER DISTRICT AND ADJACENT AREAS, CHILE 1 KENNETH SEGERSTROM CONTENTS PAGE Abstract ....of silver-producingmining districts in northern Chile. Part of the belt, parallel to the Pacific Coast...unpublishedmap, later incorporatedin the MetallogenicMap of Chile (in press), but for criticallyreviewingthe presentmanuscript...near the coast. GEOLOGYOF SILVER MINING AREAS IN CHILE 1249 71ø W 70 ø LONG 26 ø S. LAT. EXPLANATION...LONG FtG. 1. Geologicmapof partsof Atacamaand Coquimbo provinces, showing locationsof silver-miningdistricts |  | | Report (volume) | | auriferous conglomerates of the Canavieiras gold mine, State of Bahia, Brazil, by M. G. White: Engenharia... Phosphate minerals from the Sapucaia pegmatite mine, Minas Gerais, by W. T. Pecora and M. L. Lindberg:... 148 149 150 151 Map and sections of Andrade mine, Monlevade quadrangle, Minas Gerais, Brazil, by...341-D, p. D1-D84, 1964. Geology of the Raposos gold mine, Minas Gerais, Brazil, by G. E. Tolbert: Econ. Geology..."\Vater-Supply Paper 1663-B, p. 1-44, 1 pl., 1963. CHILE 11 CENTRAL AMERICA Ref. No. 170 Mineral deposits |  | | Journal (article/letter/editorial) | | Candelaria-Punta del Cobre Iron Oxide Cu-Au(-Zn-Ag) Deposits, Chile ROBERT MARSCHIK†,* Lehrstuhl für Lagerstättenlehre...batholith near Copiapó, Chile. This belt includes the large Candelaria mine and a group of middle- and...biotite-potassium feldspar, or albite-chlorite ± calcite alteration. Mineralization at Candelaria-Punta...≤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., |  | | Journal (article/letter/editorial) | | University, Pullman, Washington 99164-2812 AND TERESITA F. MONTENEGRO CONICET, Universidad Nacional de...THE NORTH-CENTRAL ANDES of Chile is a well-known porphyry copper province with many large deposits (Munizaga...intrusive and extrusive igneous rocks in Neuquén province, Argentina. phyllic halos previously mapped by...produced. Geologic Setting In the northern Neuquén province the major structural feature of the Andes Mountains...are part of the volcano-plutonic Neuquén-Mendoza province, interpreted as a magmatic arc that developed |  | | 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 — ' 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 (article/letter/editorial) | | tabular bodies, and IOCG mineralization in Northern Chile SERGIO GELCICH,1,2,* DONALD W. DAVIS,3 and EDWARD...Servicio Nacional de Geologia y Mineria, Santiago, Chile Jack Satterly Geochronology Laboratory, University...district in the Coastal Cordillera of northern Chile (⬃26°S). They define a precise succession of magmatic...Cretaceous magnetiteapatite tabular body in northern Chile and related igneous rocks * Author to whom correspondence...2. GEOLOGY The Coastal Cordillera of northern Chile consists mainly of Jurassic to Cretaceous igneous |  | | Book | | Universidad de Concepci6n Casilla 4107 Concepci6n, Chile ISBN 978-3-642-88284-5 DOI 10.1007/978-3-642-88282-1.... . . . 37 The Metalliferous Ore Deposits of Chile and Argentina, and Their Geologic Framework J. Oyarzun... . . . . . . . . 147 X Contents El Aguilar Mine: An Ordovician Sediment-Hosted Stratiform Lead-Zinc...Sulfides in the Greenstone Belt of South-Central Chile - An Overview G. Alfaro and S. Callao . . . . ....Formation and Massive Sulfide Orebodies, South-Central Chile: Geologic and Isotopic Aspects S. Callao, G. Alfaro |  | | Report (issue) | | literature. An example was with the Osamu Utsumi mine in Brazil. This deposit has been reported in the...The given name for the occurrence or deposit. PROVINCE The major region political subdivision of the...producer. Mine A mine is a deposit from which ore is currently being recovered. Depleted Mine A depleted...depleted mine is, a mine-out or depleted ore deposit with insufficient Reasonably Assured Resources recoverable...support further production. Inactive Mine An inactive mine is a closed mine with remaining Reasonably Assured |  | | Journal (issue) | | the complex 5 General setting 5 Geology of Sub-province I 6 Tahuin semi-pelitic division 6 El Tigre unit...the Zanjon-Naranjo fault zone 19 Geology of Sub-province II 20 Palenque melange division 20 Raspas ophiolitic...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...60 TABLES 1 Selected climatic data from El Oro Province 4 2 K-Ar determinations for Moromoro granitoid |  | | Report (issue) | | depth of flow for mean annual flood, Piedmont Province, by F. A. Kilpatrick ___·__________ Geology and...Willden __________ _ 193. Geology of the ~ount Wheeler mine area, White Pine County, Nevada, by Donald H. Whitebread...change in Neocomian rocks of the Teresita-Chula area, Atacama Province, Chile, by Kenneth Segerstrom_ 230...Rhyolite tuff, a source of the salts of northern Chile, by George E. Ericksen _______________________________...stress distribution around coal mine workings in Sunnyside No. 1 mine, Utah, by Frank W. Osterwald--- |  | | Journal (issue) | | mines, Kalahari Manganese Field, Northern Cape Province, South Africa ..................................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, |  | | Journal (article/letter/editorial) | | Chalcopyrite, and minor bornite, occurs in quartz–calcite–(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...and diorites todiorites the Escondida deposit, Chile, Cu contain 6–80Chile, ppm Cu and 32–99 ppm Cu and...epidote and chlorite filling voids between the calcite (Figure 3c). Sulfides and oxides associated with |  | | 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 |  | | 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. |  | 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...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 |  | | Journal (issue) | | crystal group, 7 cm, from the Huanzala mine, Dos de Mayo Province, Peru. Marty Zinn collection; Jeff Scovil...Gustavo Adolfo 250-J Estacion Central Santiago, Chile jZonfenls * * . I n t r o d u c t i o n ............. Quiruvilca district, Santiago de Chuco province, department of La Libertad PASTO BUENO G r o u................. Pasto Bueno district, Pallasca province, department of Ancash R a u r a -H u a n z a l...district, Cajatambo province, department of Lima Pachapaqui district, Bolognesi province, department of Ancash |  | | 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...of the southern portion of the Basin and Range province is also shown (modified after Henry and Aranda-Gómez...southernmost part of the Basin and Range Tectonic Province (Henry and Aranda503 Ore Geology Reviews 101...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 |  | | 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 (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 (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) | | 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 μm)...μm), and the pseudomorphic replacement of calcite by apatite has been previously demonstrated (e.g. Ames...of the expected mineral products. Specifically, calcite (CaCO3), tricalcium phosphate (TCP — 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 (issue) | | E - M - S - T - O - N - E Wulfenite, Red Cloud Mine, La Paz Co., Arizona Send $7.50 for our Mineral...noted sinhalite from Eheliyagoda in Sabaragamuwa Province. Gunawardene and Rupasinghe (1986) in cluded...minerals from the Elahera gem field in Central Province. Henn (1985) characterized a distinctive olive-green...sitting up on a 10 x 10-cm matrix, from the Akchatau mine, Kazakhstan; not even a large bash in the center...others, and a colorless, flawless, English-like calcite twin almost 20 cm long. From Dzhezkazgan, Kazakhstan |
|
