 | | 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 |  | | 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) | | 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) | | 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 |  | 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...minerals in the saprolite (malachite, azurite, brochantite) where the environment becomes more oxidizing...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) | | 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 |  | | 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) | | 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) | | 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 |  | | Journal (issue) | | good year's mineralogy and, with luck, with even m ore members this time next year. To all members and their...wide ranging lecture on the subject 'Mineralogy and Ore Genesis' on 17 November 1995, bravely attempting...lecture began with an overview of the genesis of ore deposits. Committee... or lack thereof! The AGM...default until such time as matters can be regulated. Ore-bearingfluids derived from magmatic sources, meteoric...processes and their mode of emplacement to form ore deposits were briefly described. The textures ofore |  | | 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...yellow. H ~4. D = 3.53. Found with aragonite, brochantite, rutherfordite, etc., at Jachymov, Bohemia, Czech...meteorite impact crater, N of Nordlingen, Bavaria, Germany. AM 95, 892-895, 2010. Aklimaitc CaJ(OH) 4 JSi2Os(OH)2]·5H |  | | Report (issue) | | Maritime Plain, a lowland within the Appalachian region, that includes Prince Edward Island and adjacent...They were formed in Mississippian time when the region was invaded by seas that laid down layers of limestone...glacial ice. With the retreat of the glaciers, the region was uplifted, but the islands failed to reach their...sandstone that underlies the surrounding low-lying region. The road log continues straight ahead. 3.2 Butte...in volcanic rocks associated with the manganese ore. Cavities in the limestone are common; they are lined |  | | Report (issue) | | I-Ialotrichite Komelite Coquimbite Alunogen Brochantite Alunite Jarosite Basaluminite Copiapite Phosphates...anthophyllite, apatite, apophyllitc, bornite, brochantite, byssolitc, cairn gorm, calcite, chalcedony...azurite, barite, biotite, bornitc, boulangerite, brochantite, calcite, chalcopyrite, chlorargyrite, chlorite...to collect from the rather thoroughly pickedover dumps! Selected References Fontaine, W. M„ 1883, Notes...their bearing on the geomorphic history of the region, their included relatively rare minerals (see, |  | | 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 |  | | Book | | leading authority on mineralogy, describes the unique ore deposits at Franklin and Sterling Hill, New Jersey...Mineralogy of the Deposits Ore Minerals, 20 Skarns, 21 Geochemical Features of Ore and Skarn, 23 Vein Occurrences...first appears in the mineralogy of the ordinary ore, where zincite and franklinite, both scarcely known...The textural and exsolution relations of both the ore and skarn minerals, as responsive to the complex...persons living in Franklin or in the surrounding region. These col¬ lections have since been dispersed |  | | Journal (volume) | | Carn Brea & Tincroft Report Carn Brea & Tincroft, Ore-Dressing at Carter, T. Lane Mining in Nicaragua Caucasus...Promotions Bunker Hill ami Sullivan Bunker Hill, Ore-dressing at of Capitalizing 220 169 26K *72 228...Mining Camp PA<>E *iS Milling of Lead-I^ilver Ore Cananea, Analysis at Cananea, Assaying at Cananea...Copper Precipitation at Butte... Copper Queen Smelter, Analysis at Copper, Train-Load of (p.^)... Cornwall...J^H. Collins... 240 170 386 H. G. Nichols... Ore Mining Methods... Recollections of Mine Fires... |  | | Report (issue) | | Weir. A Bulletin No, 6. Leaching a Lime-Zinc Ore with Acids. Bulletin No.7. and Drain Tile. Results...about the folding and faulting in the Appalachian region took place in a geological period much earlier...planes without dooming. In most cases metalliferous ore deposits are either directly or indirectly connected...Survey, Bull. No. 260, pp. 468-479. (8) Geology and Ore Deposits of the Park City district, Utah: U. S. Geol...Boutwell, J. M., and Keith, Arthur. (9) Geology and Ore Deposits of the Bingham mining district, Utah: U |  | | 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 ... |  | | 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 |  | | Book | | discovery and exploitation of a wide variety of ore deposits in Namibia makes for both interesting and...infonnation • that has greatly aided our understanding of ore deposition and mineral provinces, thereby facilitating...grants as well as on specific mineral occurrences and ore deposits. With the advent of an international conference...{80 million t. IOOOto 2000 ppm copper). In this region the sequence ends with a succession of reel beds...Clemmey, 1986)and at Kojeka. Some 13million t of ore have The exploration targets and mineral deposits |  | | Report (issue) | | importance or potential. ORE MATERIALS Mineralogical composition of the ore. Generally includes metallic... but which are 11 intimately associated with ore grade mineralization. Minerals that appear in parentheses...MINERALS Mineralogy of non-economic component of ore. SIGNIFICANT ALTERATION Description of alteration...IV PRODUCTION TABLES Amount of commodities or ore produced in a given year or range of years. Production...units as given in the source publication. ITEM: Ore, concentrates, or commodity. TONNAGE(xlO^): Amount |  | | Book (edition) | | three parts: (I) Principles and Processes, (II) Ore Deposits, and (III) Nonmetallic Mineral Deposits...worker as well as for practical considerations of ore finding. Increasing population and increasing mechanization...attention was paid to the rocks that enclosed the ore deposits, to deciphering their character, structure...scope of economic geology includes not only metallic ore deposits but the broader field of nonmetallics, whose...geology which deals especially with the problems of ore deposits and their relation to metal mining and, |  | | 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 |  | | Journal (issue) | | Behnke Northbrook, IL Werner Lieber Heidelberg, W. Germany Eric Offermann Arlesheim, Switzerland Jeffrey A...ounces is extracted from over 15 million tons of ore. Average production is over 40,000 tons per day,...mineral collecting procedure that did not cause ore production slowdowns. After all, it was unheard of...none is expected, as this formation contains oxide ore and few if any sulfides. The Etchart sequence, over...sequences at the Twin Creeks mine. They are pre-ore-stage systems and do not contain gold mineralization |  | | Journal (issue) | | We had secured permission to hunt on the mine dumps ahead of time (it was then possible to secure permits...Iroquois Mine on Cliff Drive is the Cliff Mine-with dumps on both sides of the road . We usually hunt on the...walk in the woods, found ourselves at the mine dumps. I did not find much in microcrystals at this dump...the intersection of Highway 41 and M26. The mine dumps are to the left. We turned in that direction and...parking our Vans on the grass clearing next to the dumps. A rare find are twinned chalcocite crystals in |
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