 | | Journal (issue) | | available). Arizona being the remarkably mineral-rich region that it is, we have not yet come close to describing...new localities like the Carlota mine (brilliant azurite) and the Oatman fluorite occurrence; one mysterious...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 |  | | 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 |  | | 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__________________________________________ |  | | Report (issue) | | RADIOACTIVE DEPOSITS IN THE LOWER YUKONKUSKOKWIM REGION, ALASKA, 1952 This report concerns work done on...RADIOACTIVE DEPOSITS IN THE LOWER YUKONKUSKOKWIM REGION, ALASKA, 1952 By Walter S. West CONTENTS Page...In pocket Index map of the lower Yukon-Kuskokwim region showing areas mapped, Alaska............. 3 Topographic...ABSTRACT Reconnaissance in the lower Yukon-Kuskokwim region during 1952 consisted of an examination for radioactivity...of metazeunerite was found in a sample from the ore dump of this same tunnel. No other occurrences of |  | | 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 |  | | 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 | | 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 |  | 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...oxidized minerals in the saprolite (malachite, azurite, brochantite) where the environment becomes more...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 |  | | Journal (issue) | | Ueber Heidelberg, W. Germany Olaf Medenbach Ruhr Universitat Bochum Bochum, W. Germany Eric Offermann Arlesheim...genetic relationship to diamond and may vary from one region to another. The accessory minerals are well known...groundwater levels. (c) Overburden. Deposits overlying the ore gravels can be even thicker. This overburden is typically...diving gear which they will take turns using. The ore grade is always low, ranging from 1 carat per cubic...of gravel. The gem percentage varies from region to region, but generally 20% to 40% of the diamonds |  | | Report (issue) | | .............................. East Kimberley region .................................................~inc-lead-copperprospects CHAPTER 14 EASTERN BORDER REGION CRYSTALLINE T E R R A I N S ix 109 109 I10 111...112 113 113 113 115 CHAPTER 15 THE BLACKSTONE REGION: BENTLEY SUPERGROUP Geology .....................000 2 Generalized geological map of the Kimberley region showing tectonic provinces, cupriferous stra- ...51 52 53 54 TABLES 1 Annual production of copper ore and concentrates Western Australia 1853-1976 ... |  | | 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 | | portray the main chemical elements of the Tsumeb ore deposit and sym bolize from top to bottom: Copper...Eisenbahn-Gesellschaft: 1906-1946 . Tsumeb Mine . Ore Concentration and Smelting Ra:ilway and Communications...venturing too far down a blind alley in search of ore. And so it came about that I paged throitgh most...The search for a picture of the original Tsumeb ore outcrop was first rewarded by a gift from Dr. A....their keeping. The section on the present Tsumeb smelter was largely written by the Superintendent, Mr. |  | | Journal (issue) | | commercial iron ore. and the rock outcrops expose many inThe first mining of iron ore in the teresting...1848; the Minerals are beautiful in themselves, ore was hauled by team to a forge near but when their...may be only a stone to some, but it to smelt iron ore near the mines ; even is an open book to you. Every...simply happen; the to the efforts of the early iron-ore deveunderlying causes of their formation ace lopers...oldest rocks known. Many of these Lake Superior region and the furnaces were originally gravels, sands |  | | Report (issue) | | conclusions................. Koyukuk-Chandalar region, by Arthur E. Nelson... Geology and radioactivity...Table 1. Radioactivity and mineralogy of rock and ore samples collected in the Slana-Nabesna district,...Range, 1952..... 3. Radioactivity data on rock and ore samples collected in the Chisana district..........Koyukuk-Chandalar region, Alaska............................... 11. Radioactivity of rock and ore samples from...from the Koyukuk-Chandalar region, Alaska................. ABSTRACT Reconnaissance for radioactive deposits |  | | 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 |  | | Journal (issue) | | Jacinto and Elsinore faults (Sharp, 1972). This region includes the Colorado River delta and the Imperial...and geologic structure in the southern California region: Bulletin of the Seismological Society of America...T. W, Jr, 1954, Geology of the Imperial Valley region, California in Geology of southern California:... 1982, Tectonic setting of the Imperial Valley region in The Imperial Valley, California, earthquake...during earthquakes in this seismically active region. CALIFORNIA GEOLOGY April 1988 IRRIGATION HISTORY |  | | 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 |  | | Report (volume) | | Geologic relations_____________________________ 18 Ore deposits __________________ _____ _ 20 General c...relations of the deposits______________________ Ore deposits ____ ___________ _ _____ The ores_______...39 40 41 42 42 42 42 42 43 44 45 ___ !___ 45 Ore deposits________________ _ ^_____ Character and relations___..._____ Geologic relations____________._____________ Ore deposit______ ________:______ _______ Development...Pennsylvania__________________ South Mountain region _ : Northern coal region _________________________^__ East-central |  | | Book | | its final aban donment 3.5 to 4 million tons of ore were mined, yielding about 400,000 tons of pig lead...into white marble. The ore ac companies dacite-liparite and appears in the region of big tectonic fractu...mines are located on dacite liparite apophyses, ore veins being richest at the intersections of apophyses...mining to date. There are four principal types of ore · bodies at Balya, which may be summarized as follows...disseminated replacement or «porphyry» ore. Below minus 80 metr.rs the ore is too diluted to be of economic |  | | Report (volume) | | area on Revillagigedo Island were examined because ore deposits at both localities contain minerals commonly...Forest Service. The Hyder district is a mountainous region of great relief. The valley floors of Salmon River...rarely fall below zero. GEOLOGY The geology and the ore deposits of the Hyder district have been described...of this type is a siliceous heavy-sulfide body of ore in the Premier mine in Canada (Schofield and Hanson...RADIOACTIVE DEPOSITS, S. E. ALASKA 31 show that the ore contains moderate to high amounts of gold and practically |  | | Report (issue) | | TITU S , Hydrology BULLETIN 10 The Geology and Ore Deposits of Sierra County, New Mexico by GEORGE TOWNSEND...-------------------------------------------- 43 Ore deposits 47 Geographic distribution ------------...relations --------------------------------------------Ore deposits ---------------------------------------...-------------------------------------------------Ore deposits ---------------------------------------...relations -----------------------------------------------Ore deposits --------------------------------------- |  | | 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 |  | | 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...Tsumeb, South West Africa, including mimetite, azurite, cerussite, cuprite and aragonite; Katangan malachite;...practitioners of our hobby. September— October, 1971 M ore than ever, collectors in many countries are themselves |  | | Report (issue) | | Dolomite Ankerite Buctschliite Hvdrozincitc Malachite Azurite Hvdromagnesite Parisite Bastnaesite Ancylite Checklist... anthophyllite, apatite, aragonite, asbestos, azurite, barite, bornitc, calcite, ccrussite, chalcocite...COUNTY: amethyst, anatase, ancylitc, apatite, azurite, bomite, bastnaesite, cerianite, chalcopyrite,...actinolite, anthophyllitc, apatite, arseno pyrite, azurite, barite, chalococite, chalcopyrite, chrysocolla...psilomelanc. CULLEVER COUNTY: amethyst, arsenopyritc, azurite, chal cocitc, chalcopyritc, dioctohcdral vermiculitc |  | | Journal (issue) | | journals, then fading into the sunset as the high grade ore or outcrops proved to be shallow or less valuable...consuming. It was said that the richness of the ore from the Planet mine, some assaying as high as 60%...profit of $100 per ton. And this was after mining the ore, shipping it by wagon to the Colorado River, loadig...one, the Grand Central Mining Company, erected a smelter costing $100,000 at the Colorado River landing...Planet mines produced 1,156 tons of 20% to 60% copper ore. A reported 500 miners of various nationalities worked |
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