 | | Journal (article/letter/editorial) | | KENNETH SEGERSTROM MATURELAND OF NORTHERN CHILE AND ITS RELATIONSHIP TO ORE DEPOSITS Abstract: The old...extends over a long north-striking belt in northern Chile probably reached the mature stage of erosion by...between Tres Puntas and Cerro del Fraile, in Atacama province (Fig. 2). In that sector no fault scarps are...Antofagasta provinces and the northern part of Atacama province, Chile, extends about 600 miles from the Peruvian...interrupted by bedrock hills. The nitrate deposits of Chile are distributed along the west edge of the pampa |  | | Journal (article/letter/editorial) | | Central Atacama Province, Chile Abstract: Geologically, the central part of Atacama Province straddles...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) | | Candelaria-Punta del Cobre Iron Oxide Cu-Au(-Zn-Ag) Deposits, Chile ROBERT MARSCHIK†,* Lehrstuhl für Lagerstättenlehre...coastal batholith near Copiapó, Chile. This belt includes the large Candelaria mine and a group of middle-...middle- and small-sized mines in the Punta del Cobre district, which is located about 3 km northeast of the...alteration at Candelaria. In the Punta del Cobre district, ore in the deeper parts of the deposits is similarly...formation of specular hematite. In parts of the district, the pseudomorphic replacement of early specular |  | | Journal (article/letter/editorial) | | sulfide mine tailings of Fe oxide Cu–Au deposits from the Punta del Cobre belt, northern Chile Bernhard...del Cobre belt, south of Copiapó, Atacama desert, northern Chile, are geochemically (largely using sequential...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; |  | | 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 |  | | 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 |  | | Journal (article/letter/editorial) | | the Paleozoic Sambagawa schists; and the Huelva province in Spain ( Rio Tinto). Cimmerian pyritic deposits...Cheshmeh, e t c . ) , recently discovered in this province, are genetically associated with orogenic intrusions...surrounding ore shows of bornite, chalcopyrite, chalcocite, and sometimes with magnetite, are developed...and some of them (located in the south of the province) are of Early Cretaceous age. They are usually...Argentina in the south. The unique deposits of Peru and Chile are located here (fig. 6). The chalcopyrite volcanogenic |  | | Journal (article/letter/editorial) | | Reflected light image (plane of polarized) image chalcocite Central Ridge Cu Central prospect. (d) Reflected...Reflected light(d) (plane polarized) chalcocite (Cct)of and bornite (Cct) Central and bornite Central (e)...and diorites todiorites the Escondida deposit, Chile, Cu contain 6–80Chile, ppm Cu and 32–99 ppm Cu and...chalcopyrite and trace amounts of pyrite, bornite, chalcocite, and covellite. Secondary malachite and chrysocolla...(Figure 8a). Aside from the presence of minor chalcocite (Figure 3d) and covellite replacement of chalcopyrite |  | | Catalog/List | | and Nevada were his favorites because of their mining and coin minting history. During his second year...the university, Kevin delved into mineralogy and mining history, and began to update his mineral collection...country as well as exploring scores of abandoned mining towns from California to New Mexico to Montana...and in particular, the towns of the Hwy 95 mining district from Rhyolite to Goldfield and Tonopah. Kevin...Kevin Ward Minera! on QUARTZ RHODOCHROSITE District Mine. Climax Climax olTolg-Yole Lake. County. ncredibly |  | | Report (issue) | | PROSPECTS OF THE I, H, IE, IV, AND V REGIONS, NORTHERN CHILE compiled by William C. Williams Open-File Report...complement to my dissertation work in northern Chile under the auspices of Dr. John Guilbert at the University...prospects in the I, n, IE, IV, and V Regions of Chile (Figure 1). Over 3000 sites were compiled from published...well as descriptions of the major mines throughout Chile with insights as to their genesis. Finally, Frutos...accessed through MRDS computer database). District Name District to which site belongs. Lati tude / Long |  | | 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...FineMineral.com APATITE Nagar, Hunza Valley, Gilgit District, Northern Areas, Pakistan, 11.5cm. Fine Minerals...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 |  | | 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 ..................................... History of Peru Mining in Peru The Mineral Specimen Business C o l l e....................... Quiruvilca district, Santiago de Chuco province, department of La Libertad PASTO.......................... Pasto Bueno district, Pallasca province, department of Ancash R a u r a -H u |  | | Journal (article/letter/editorial) | | chemistry and fate of heavy metal-bearing particles in mining-affected river systems K. A. HUDSON-EDWARDS* Research...discharge of mine or processing waste, tailings dam failures, remobilization of mining-contaminated alluvium...alluvium and mine drainage. The mineralogy and geochemistry of these particles is dependent upon the...chemistry and fate of heavy metal-bearing particles in mining-affected river systems, and identifies six important...heavy metal, mining, mineralogy, geochemistry. Introduction PRESENT-DAY and historic mining activities |  | | Report (issue) | | nomenclature. ABSTRACT The Castrovirroyna mining district lies in the Andean Cordillera of South Central...Supervene silver ores vere first mined. Currently the district produces about 20,000 tons of laad*sinc ore and...and 50OO tons of silver ore annually* The district: Is underlain by Tertiary andesitlc rocks interbedded...vestermaost veins at la Virreyna* In tha center of the district, around Caudalosa, lead sulfantiiaonldas are the...pattern of vallrock alteration throughout the district grades from silicification and scricitization |  | | 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) | | shown that upon oxidation and release of Cu from chalcocite (Cu2S), covellite (CuS) will form after proceeding...cells were packed with pure, naturally occurring chalcocite powders and exposed to various concentrations...during the initial stages of the reaction when chalcocite was present the average ∆(aq-min) value was 3...twenty of the known carbonatite complexes has a mine. The high probability that any particular carbonatite...mined but most are too small for international mining companies to exploit. Large deposits in large carbonatites |  | | Journal (issue) | | 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...were first observed in Canada at the Van Silver mine, and it is the second reported occurrence in Canada |  | | Journal (issue) | | Garcia O rth oserp ierite from the C op p er C reek district, P in al C ounty, A r iz o n a .................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...the sylvinite ore at the Boulby mine has been recognized since mining began in the early 1970’s (Milne |  | | Journal (issue) | | Fossils, Gems and Jewelry Silver from „Himmelsfürst“- mine Freiberg, Germany n o i t a v o n n of i s y a... February 2011 43 44 The Tucson MetaGuide MINE SOURCE FOR UNIQUE ARIZONA GEMSTONES Natural Face... Shamanite/NA Black Calcite includes Carbon, Chalcocite, Pyrite, Baryte, Zircon in Detrital Quartz, rare...including rare Barite, Zircon, Chlorite, Orthoclase, Chalcocite and Strontianite, as well as Quartz and Carbon...23th - Feb 12th, 2011 This will be our 42nd year mining, selling, buying and trading! Or visit our 5 acre |  | | Book | | France, and Morocco 127 1985 - Bedford United Mine 140 1986 - 1989 More Foreign Travel 154 1990...David Lloyd laddering down a shaft at Bedford United Mine, Devon. Introduction I was born in Bristol on...Tungsten Mine, at Plympton, Devon, followed by an attempt to rework the famous Tsumeb Mine in Namibia...inform me that a new mineral species from the Tsumeb Mine in Namibia was to be named after me. This came as...sold off most of my mineral collection, pictures, mine plans, memorabilia etc. We spent the next few years |  | | Report (issue) | | Hu1nan aspect 3 Access 3 Previous geological work 3 Mining history 4 Project operations 5 Reports and maps...data base to support and promote a viable national mining industry. The work was carried out under the Cordillera...the Ecuadorian Mining Institute (INEMIN), replaced in 1991 by the Geological and Mining Corpora tion...1993 Dr Aspden covered the El Oro metamorphic district whilst Dr R A Je1nielita (Economic Geologist)...coastal foothills range of the El Oro meta morphic district, lhe other, smaller project study area (Figure |  | | Report (volume) | | Ontario. Canada. Canadian Mining and Metall. Bull.- The Canadian Mining and Metallurgical Bulletin....Institute of Mining and Metallurgy. Montreal, Quebec, Canada. Canadian Mining Jour. - Canadian Mining Journal...Service. Albany, N.Y. Eng. and Mining Jour. - Engineering and Mining Journal. Co. New York, N.Y. McGraw-Hill...Revista del Instituto Mexicano del Petr6leo. lost. Mining and Metallurgy Trans. Metallurgy. London, England...England. Mexico, Transactions of the Institution of Mining and lost. Petroleum Jour.- Journal of the Institute |  | | Report (volume) | | of the Mineralogical Canadian Mining and Metall Bull. - Canadian Mining and Metallurgical Bulletin. Canadian...Institution of Mining and Metallurgy. Montreal, Quebec, Canada. Canadian Mining Jour. - Canadian Mining Journal...of High Plains Underground Water Conservation District No. 1. Lubbock, Tex. Cushman Found. Foram. Research...Service. Albany, N. Y. Eng. and Mining Jour. - Engineering and Mining Journal. Co. New York, N.Y. McGraw-Hill...Geoexploration - Geoexploration. International journal of mining and technical geophysics and related subjects. |  | | Report (issue) | | their importance in very acid waters such as some mine waters issuing from oxidizing ore deposits. Data...provided to us by Neil Dubrovsky of the California District Office, Water Resources Division, U.S. Geological...waters, including many types of ground waters, acid mine waters, riVer waters and lake waters that occur... 1989, Solubility product of jarosite from acid mine water at Iron Mountain, California, U.S.A.: Sciences...factors affecting the heavy metal chemistry of an acid mine system: Stanford University, Ph.D. Dissertation |
|
