 | | Journal (article/letter/editorial) | | comparative measure of the amounts of quartz, kaolinite, siderite, pyrite and buddingtonite. Diffraction...representative of the central and most prospective region of the Condor deposit. Fig. 1 shows concentration...components, quartz, kaolinite, siderite, buddingtonite, pyrite and kerogen. Quartz and kaolinite predominate...as follows: quartz with total SiO2 (r= +0.89), kaolinite with total A1203 (+0.84), siderite with FeO (+0...environmental problems if oxidation occurs in waste ore dumps. For Condor oil shales it occurs mainly in two |  | Patterson, J.H., Ramsden, A.R., Dale, L.S., Fardy, J.J. (1986) Geochemistry and mineralogical residences of trace elements in oil shales from Julia Creek, Queensland, Australia. Chemical Geology, 55 (1) 1-16 doi:10.1016/0009-2541(86)90123-3 | Journal (article/letter/editorial) | | mobilization, and in the leachability of waste ore and spent shale dumps. 2. Experimental 2.1. Samples The present...more significant environmental problem in waste ore dumps than other overburden materials. Depending o n...such material might go directly to the waste ore dumps. As the grade increases towards the cut-off, the...patterns include mixed-layer mica--montmorillonite, kaolinite, albite and gypsum. Trace minerals identified...assessing oxidation and leachability in waste ore dumps (Caruccio, 1975). Pyrite tends to be more concentrated |  | | Report (issue) | | similarities in their geologic characteristics (ore and gangue mineralogy, major- and trace-element geochemistry...lithology, wall-rock alteration, physical aspects of ore, etc.), as well as their geologic setting (see for...to have potential for economic exploitation. An "ore deposit" is a mineral deposit that has been tested...Jambor and Blowes (1994), and Plumlee (in press). Ore and gangue mineralogy, host rock lithology, and wall-rock...minerals, carbonate minerals, whether present in ore or in host rocks, can help consume acid generated |  | Verhaert, Michèle, Gautheron, Cécile, Dekoninck, Augustin, Vennemann, Torsten, Pinna-Jamme, Rosella, Mouttaqi, Abdellah, Yans, Johan (2022) Unravelling the Temporal and Chemical Evolution of a Mineralizing Fluid in Karst-Hosted Deposits: A Record from Goethite in the High Atlas Foreland (Morocco) Minerals, 12 (9) 1151 doi:10.3390/min12091151 | Journal (article/letter/editorial) | | dekoninck@unamur.be Abstract: Timing and duration of ore deposit formation are crucial to understanding the...both precipitated prior to the massive Mn oxide ore. The δD and δ18 O values reveal that the mineralizing...fracture-filling goethite formed between 80 to 50 Ma. Ore deposition occurred discontinuously during the early...circulation and associated ore deposition are often difficult to constrain, notably as few ore minerals can be dated...dated. Age constraints on supergene and subsurface ore deposits come mostly from the use of K-Ar and 40 |  | | Report (issue) | | Tooele County. 7. Map and longitudinal profile of ore bodies in Scranton mines. 8. Sketch map of the geology...6. Diagram showing fissure vein of oxidized zinc ore, Redmond silver mine, Redmond_________________________________...18 8. Section of a large low-grade oxidized zinc ore body in the hanging wall of a lead vein, Lower Mammoth..._ 19 9. Diagrammatic section of the Horn Silver ore body, Frisco____ 20 36 10. Sketch map of Tecoma and...districts, mines, claims, and prospects of oxidized zinc ore in Utah__________________________________________ |  | | Journal (issue) | | available). Arizona being the remarkably mineral-rich region that it is, we have not yet come close to describing...yielded hundreds of tons of wulfenite crystals as ore. And yet it is probably among the least visited by...recounted by Dowell (1978a, 1978b). The Total Wreck ore deposit was discovered in 1878 by John T. Dillon...levels, and miners began hauling out 50 tons of ore per day, which at first was stockpiled on the dump...mine opening to the mill, and a mule-drawn 5-ton ore car was brought in. In 1882 a massive steam-powered |  | | Report (issue) | | investigations .................. Lower Yukon-Kuskokwim region, by W. S. West ........................ Russian...Southern Kaiyuh Mountains ........ Koyukuk-Chandalar region, by A. E. Nelson ........................ Chandalar...Yukon-Kuskokwim region................. data on localities examined in the Koyukuk-Chandalar region ...........centered chiefly in parts of the lower Yukon-Kuskokwim region and northeastern, east-central, south-central,...lodes were discovered in the Koyukuk-Chandalar region, nor was the source of the monazite, previously |  | Verhaert, Michèle, Bernard, Alain, Dekoninck, Augustin, Lafforgue, Ludovic, Saddiqi, Omar, Yans, Johan (2017) Mineralogical and geochemical characterization of supergene Cu–Pb–Zn–V ores in the Oriental High Atlas, Morocco. Mineralium Deposita, 52 (7) 1049-1068 doi:10.1007/s00126-017-0753-5 | Journal (article/letter/editorial) | | Accepted: 16 June 2017 # Springer-Verlag GmbH Germany 2017 Abstract In the Moroccan High Atlas, two...protolith, related to variations in the mineralogy and ore grades and probably caused by varying Eh-pH conditions...Keywords Moroccan High Atlas . Weathering . Supergene ore deposits . Calamine . Non-sulfide Cu–Pb–Zn–V minerals...the Moroccan High Atlas, numerous Pb–Zn supergene ore deposits described in the 1960–1970s (Emberger 1969...relationships between different types of ore, and between ore and host rocks, results in the identification |  | | Journal (issue) | | Lieber Heidelberg, W. Germany Olaf Medenbach Ruhr Universitat Bochum Bochum, W. Germany Eric Offermann Arlesheim...Windisch 30 Van Wouw Street Groenkloof, Pretoria West Germany Christian Weise Verlag Oberanger 6 D-8000 Munchen...Austria, OS 624; in Switzerland, SFr 76.80; in Germany, DM 76.80). Send to: Magma, Verlag Rainer Bode...Bode, Krokusweg 13, D-4630 Bochum 7, West Germany. For those readers of Magma and of the Mineralogical Record...percent or the total amount in the ore. It looked like a very fair ore and they said it ran about 7 ounces |  | | Journal (issue) | | Je n n i’s insatiable curiosity led him to the dumps of the long defunct portion of the quarry, the “...titanite, geikielite. H e first noted it on the dumps of an adjoining property and it was identified as...useum and many museums in England, France and Germany. Although I had corresponded with Col. Jenni for...practitioners of our hobby. September— October, 1971 M ore than ever, collectors in many countries are themselves...the period 1933 to 1941; in all, some 130 tons of ore were shipped for a total of over 150 ounces of gold |  | | Journal (issue) | | attraction. Photo courtesy of Peter Megaw. Introduction ore mining at the Ojuela ceased in the mid-1940’s, but...respective heydays, exploiting hydrothermal polymetallic ore deposits. The Tsumeb deposit, however, is geologically...has done so only during the last 60 years, after ore mining had largely come to an end (we almost dare...specimens the miners probably encountered and crushed as ore or discarded as waste during those 340+ years). Both...fluorite, celestine, apatite, and magnetite iron ore, have produced few noteworthy specimens. But the |  | | Report (issue) | | hydrozincitc, illite, ilmcnitc, jarositc, jasper, kaolinite, lampaditc, limonite, lithiophoritc, magnesite...helvite, herderite, hyacinth, ilmenitc, jarosite, kaolinite, kyanite, lepidolite (?), lcpidomelanc, lcverrieritc(...hematite, hypersthene, iddingsite, ilmcnite, kaolinite, lithiophorite, magnesite, magnetite, malachite...gocthite, halloysite, hematite, iddingsite, iron, kaolinite, limonite, manganite, natrolite, nenadkcvichite...chalcopyritc, fluorite, galena, gibbsitc, goethitc, kaolinite, lcpidocrocite, mangnetite, manganite, niter, |  | | Report (issue) | | Banerjee Uranium deposits of the Inkay — Mynkuduk ore field, Kazakhstan..................................Filip Perspective to discover profitable uranium ore in Ukraine.........................................basin and one in the Syr Darya basin. The uranium ore in these basins is concentrated along roll fronts...Imouraren deposit is currently under evaluation. The ore at Imouraren, which was discovered in the late 1960s...currently exploit eight individual deposits. The uranium ore is distributed along roll fronts in Cretaceous, Paleogene |  | | Report (issue) | | significant prospects3 were plotted and their respective dumps were mapped. Based on this information and previous...Geologic relations and isotopic dating indicate that ore mineralization, hydrothermal brecciation, and pervasive...contain smectite and illite, with minor amounts of kaolinite and chlorite. Clays within soils formed from intensely...and minor amounts of chlorite and kaolinite. The absence of kaolinite in any major alteration assemblages...just below site PI 2 (Fig. 2). Mining and Ore-Related Minerals Ore minerals present within the major mines |  | | Book | | landforms and ore deposits: Economic Geology, v. 79, p. 1286–1298. Sillitoe, R.H., 1985, Ore-related breccias...B.H., Mason, R., and Hodgson, C.J., eds., Giant ore deposits: Society of Economic Geologists Special...gold-silvermercury deposits at Paradise Peak, Nevada: Ore controls, porphyry gold association, detachment faulting...2003, Linkages between volcanotectonic settings, ore-fluid compositions, and epithermal precious metal...and Graham, I.J., eds., Volcanic, geothermal, and ore-forming fluids: Rulers and witnesses of processes |  | | Journal (issue) | | written in 1910-1911 by Friedrich Schumacher on the ore deposits owned by “Ruda-12 Apostoli” company, a mineral...educated in Germany. The collection has been added with new gold specimens from the ore deposits around...between 1920 and 1948. Other mineral samples from ore deposits of Romania or from all around the world...383 mineral samples, 53 rock samples, as well as ore processing reagents, mining models, mining devices...belonged to mining companies based in the Brad region. Today, it is owned by S.C. “MINVEST” S.A. Deva |  | | Book | | of debris washed down fromthe Roughton Gill mine dumps under Iron Crag C O N T E N INTRODUCTION...Elizabeth I to work copper and silver there. The smelter they built at Keswick was the largest in Europe...contributions on the topographical mineralogy of the region updating the earlier work of Greg & Lettsom (1858);...elsewhere in the Lake District, where the dominant ore minerals are sulphides of lead, copper and zinc,...antimonyin the Caldbeck Fells ores that the master smelter Joachim ve Gaunse referred to in 1581 as oneof |  | Sun, Jing, Strosnider, William H.J., Nairn, Robert W., LaBar, Julie A. (2020) Water quality impacts of in-stream mine tailings on a headwater tributary of the Rio Pilcomayo, Potosí, Bolivia. Applied Geochemistry, 113. 104464 doi:10.1016/j.apgeochem.2019.104464 | Journal (article/letter/editorial) | | Hemisphere (World Bank, 2009). Communities in 75 the region rely on the river for washing, irrigation, fishing...through ore dumps and tailing piles, point-source tailing discharges from Potosí’s 85 ingenios (ore processing...103 such as quartz, tourmaline, siderite, and kaolinite. Host rock is pyritized near the 104 veins and...calcium oxide (CaO) is commonly 243 used in the ore separation process in Potosí, leading to tailings...292 city). 293 3.3 Speciation 294 The study region consists of Upper Cretaceous and Tertiary bedrocks |  | | Report (issue) | | Smith, Director Professional Paper 139 GEOLOGY AND ORE DEPOSITS OF THE DUCKTOWN MINING DISTRICT, TENNESSEE...CHAPTJregion, by F. B. Laney ______________';?. __________________...______________________________ _ CHAPTER V. The ore deposits, by W. H. Emmons ____ _ Geographic distribution...ral character of the primary ore ________ _ Minerals of the primary ore ________________ _ Actinolite...V. The ore deposits-Continued. Mineralogy of the ores-Continued. Minerals of the primary ore-Continued |  | | Journal (issue) | | Broken Hill, bernalite has also been found in Germany, but to date it has not been made synthetically...the silicate minerals of the Earth's mantle, a region which constitutes 60% of the volume of the planet... Namibia; the Clara Mine in the Black Forest, Germany; Broken Hill, New South Wales, and Langban, Sweden...mining around the turn of the century, and the mine dumps have continued to provide interesting specimens...specimens from pockets in the primary ores. The dumps of this mine, particularly on the Western Lode, |  | | Book | | large ilmenite masses could be seen on the old dumps. In 1975-1976, Brunet collected sharp, black, flattened...7 .5 cm in matrix of massive quartz from these dumps-adding that, in his judgment, many more "lost" localities...localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...in Switzerland, it is only in the Maderanertal region of east-central Canton Uri that clefts bearing...clefts are found fairly commonly throughout this region, such that only a handful of notable finds during |  | | Report (issue) | | mine . . . . . . . . .11 Maria magnetite-copper ore body . . . . . . . .11 Wah Wah Mountains deposits... . . . 34 Ore deposits . . . . . . . . . . . . . . . . . . . . . . . . . . 39 A and B ore body . . ..... . 41 April Fool ore body . . . . . . . . . . . . . . . . . . . 41 Armstrong ore body . . . . . . .... . . 41 Ashton ore body . . . . . . . . . . . . . . . . . . . . . . 41 Black Hawk ore body . . . . ..... . 41 Black Magnetic ore body . . . . . . . . . . . . . . . 44 Blackbird ore body . . . . . . . . . |  | | Book (edition) | | Daliranite, 5111111, Zarshouran Au-As deposit, Takab region, Iran Grandviewite, 5 111111, Capillitas deposit...Anthropogenic on burning coal dumps of the Anna mine, near Aachen. Germany. CM 51, 57-66, 2013. Afmite...In acic~- depo it, N of ofija, Vratsa-Izdremet ore region, Bullar crystals to I mm, pale yellow, transparent...meteorite impact crater, N of Nordlingen, Bavaria, Germany. AM 95, 892-895, 2010. Aklimaitc CaJ(OH) 4 JSi2Os(OH)2]·5H...the Alcaparrosa mine, Cerritos Bayos, Antofagasta region, Chile. MM 76, 851861, 2012. Aldrigeite (Cd,Ca)(Cu |  | | Book | | with other iron formations of the Lake Superior region .............................. 64-66 54 54-59.............................. 89-94 Comparison of Ore and the Taconite f1·om which it ,vas derived ......Correlation of Taconite Horizons ,vith types of ore .............. 99-101 Density, Texture ancl Structure...Position of Ore Bodies in the Iron-Bearing Formation ........106-107 Local Structu1·es of the Ore Bodies..........................112-113 Hematite-Limonite Ore Reserves ....................................... |  | | Book (edition) | | agricultural or aggresive, such as Argentina, Germany, and Japan, respectively. Many less developed countries...the Industrial Revolution. Brazil has much iron ore but little coal. India has much manganese, coal and...exporting iron ore to Japan and Iran. China and Russia have immense resources of coal and iron ore and are or...major industrial nations. With the waning of iron ore in Great Britain came a change in Britain's economy...Exhaustion, and Costs of Mining The exhaustion of an ore deposit may occur suddenly or slowly as the result |
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