 | Hodges, C.A., Cox, D.P., Singer, D.A., Case, J.E., Berger, B.R., Albers, J.P. (1984) U.S. Geological Survey-INGEOMINAS mineral resource assessment of Colombia. Open-File Report Vol. 1984 (84-345) US Geological Survey doi:10.3133/ofr84345 | Report (issue) | | substantial possibilities for the occurrence of bauxite, iron, uranium, gold, diamonds, rare earths, possibly...gem-quality emeralds; in addition, barite, silver, iron, and, since 1982, nickel are mined. Several porphyry...occurrence of bauxite, sandstone-hosted leadzinc, iron formation, uranium, paleoplacer gold and diamonds...complex mineralogy (such as the California-Vetas district) would be useful, not only for exploration in...the Eastern Cordillera at the California-Vetas District (Domain 23) (Sillitoe and others, 1982). Undiscovered |  | | Report (volume) | | 1C402, 12201 Sunrise Valley Dr. SALT LAKE CITY, Utah--Federal Bldg., Rm. 8105,125 South State St. SAN...skarn deposits 93 Tonnages of Fe skarn deposits 97 Iron grades of Fe skarn deposits 97 Generalized map showing...rock types 133 Cross section through the Kalavos district Cyprus showing relationship of massive sulfide...Tonnages of volcanic-hosted magnetite deposits 173 Iron grades of volcanic-hosted magnetite deposits 174...Tonnages of Algoma Fe and Superior Fe deposits 229 Iron grades of Algoma Fe and Superior Fe deposits 230 |  | | Report (volume) | | 1C402, 12201 Sunrise Valley Dr. SALT LAKE CITY, Utah--Federal Bldg., Rm. 8105, 125 South State St. SAN...25. Tonnages of oolitic ironstone deposits 41 26. Iron grades of oolitic ironstone deposits 42 27. Silica...The data for each deposit include placer type, mining method(s), production history, bedrock source,...the three deposit types. Tabulated data for each district include tonnage, grades, basement rocks, and references...gneiss-hosted gold model (No. 37c) is based on the Tumco mine group and American Girl-Padre y Madre mines in the |  | | Book | | gravel of streams and in veins. The veins of Gilpin County are especially noteworthy for the amount of gold...leaf gold were taken from the Printer Boy mine, Lake County, in tellurium in many in 1870. In combination...combination with of the mines in Boulder County. SILVER. occurs crystallized in cubes, octahedrons...The Boulder Nest mine in Clear Creek County, and the Caribou mine in Boulder County were especially productive...me- tallic. Has been found sparingly of Boulder County. in the tellurium-bearing mines Minerals of |  | | Report (issue) | | ............................................ 8 Mining Methods .........................................Nevada as well as in southern Idaho and western Utah (Roberts, 1966; Hofstra and Cline, 2000; Cline and...subtypes, development state, tonnages and grades, mining and processing methods, geologic setting, deposit...rock are aggregated if they are (or were prior to mining) within 200 meters of each other. This is less...‘Accurate’ is a verified location based on a surface mine, tailings, or surface disturbance supported with |  | Spiridonov, Ernst M., Serova, Alevtina A., Kulikova, Inna M., Korotaeva, Natalia N., Zhukov, Nikolay N. (2016) Metamorphic-Hydrothermal Ag–Pd–Pt Mineralization In the Noril'sk Sulfide Ore Deposit, Siberia. The Canadian Mineralogist, 54 (2) 429-452 doi:10.3749/canmin.1500028 | Journal (article/letter/editorial) | | over about 1 Ma. The plate cover in the Noril’sk district is deformed. The sedimentary sequences and volcanic...the trap association and ores in the Noril’sk district. (1) Basalt (Lightfoot et al. 1993, Szamanske...1), all of the trap rocks in the Noril’sk ore district have a common mantle source. The mantle-derived...vein with arsenic and loellingite, Komsomol’sky Mine; Ap-2 and Ca-2, apophyllite and calcite (Iceland...galena (Table 2) and other minerals (Komsomol’sky Mine). 436 THE CANADIAN MINERALOGIST TABLE 2. LEAD |  | | Book | | approximately 5 cm taii and is from the Eagle's Nest mine, Piacer County, California. Ross Beaty Collection. Photograph...metamorphic, intrusion-related, sedimentary, hot spring, iron-oxide-copper-gold (IOCG), and Mississippi Valley...References: Chace F.M. (1956) Abbreviations in field and mine geclogical mapping. Economic Geclogy, v. 51, p....Features Acanthile in hand specimen iS lead-grey to iron-black with metellic lustre (which tarnishes to dark...Metallogeny of the Proterozoic Rocks of Thunder Bay District, Ontario. PhD. thesis. University of Western Ontario |  | | Book | | carat in ten thousand emerald crys- taken from a mine in North Carolina was transparent. In some respects...termed a pink sapphire, unless the from a decided tinge of blue, when it is called a pink, or Ceylon...and nine and one-fourth carats came from the same mine. It is said an illicit diamond buyer bought this...carats was found March 28, 1880, in the De Beers mine, and cut to two hundred and eighty-eight and one-half...given to him by Oo-dwa-gee, Woon of the ruby mining district. The two best known rubies in Europe, brought |  | | Journal (issue) | | variety of the silica mineral. Because of its lovely pink shade, it is a favorite for tumbled gems. cabochons...State Street in downtown Carlsbad, Calif. (Outside USA send $2.00 for c:ataloe) GEMS & MINERALS - 7 NEW...lovely tumbled amethyst and in the other three little pink thompsonites. The beautiful iridescent surface on...stone in the center of each pattern. I used a little pink gem on one and a green one on the other. continued...Goldstone Brown Tigereye Petrified Wood Quartz Crystal Iron Hematite Red Carnelian Apache Tears Red Jasper Rose |  | | Book | | Rehoboth The Central and South-CentralDeposits Onganja Mine and Surrounding Copper Deposits The South The Pegmatitesin...natural science museums in the World, and our Tsumeb Mine has been labeled the "World's greatest mineral locality"...World's largest hard-rock tin mine and the World's largest open pit uranium mine. Geotourism and collecting...deposits, and today, Namibia is the 5th largest mining country in sub-Saharan Africa. Several of the mineral...Tsumeb. Sudwestafrika). In the FirstWorld War Today,mining playsan important rolein Namibia wasoccupied bytheBritishtroops |  | Doebrich, Jeff L., Albino, G.V., Barker, C.E., Duffield, W.A., Dunn, V.C., Hanna, W.F., McFarlan, J.P., McGuire, D.J., Miller, M.S., Peters, S.G., Plouff, Donald, Raines, G.L., Sawatasky, D.L., Spanski, G.T. (1994) Resource assessment of the Bureau of Land Management's Winnemucca District and Surprise Resource Area, Northwest Nevada and Northeast California. Open-File Report Vol. 1994 (94-712) US Geological Survey doi:10.3133/ofr94712 | Report (issue) | | OF THE BUREAU OF LAND MANAGEMENT'S WINNEMUCCA DISTRICT AND SURPRISE RESOURCE AREA, NORTHWEST NEVADA AND...the Bureau of Land Management's (BLM) Winnemucca District and Surprise Resource Area, an area covering 13...Rock National Conservation Area), and the impact of mine dewatering on drainage basin groundwater resources...part of their Resource Management Plan for the District/Resource Area or for other planning units such...Nevada together comprise the BLM's Winnemucca District. The Surprise RA is located in extreme northwest |  | | Journal (article/letter/editorial) | | by high volatile pressure, such as Upheaval Dome, Utah. In terms of an impact hypothesis the Mt Ashmore...microstructures of the superfine quartz suggest it is chalcedony rather than the product of stress-related recrystallisation...grains displaying possible incipient PDF traces, iron oxide, carbonate, foraminifers Calcarenite containing...quartz–clay–carbonate matrix; fragments of microbreccia contain iron oxide segregations 1075 1200 1210 1220 Unconformity...inclusions of resorbed enclaves of deformed quartz and of iron oxide enveloping deformed quartz; Large quartz grains |  | | Book (volume) | | Rock-Crystal, 192 Fine-Grained Varieties, 195 Chalcedony, 195 Structure, 195 Optical Properties, 195...The structural identity of chalcedony with quartz and of calcined chalcedony and quartz with cristobalite...identical twisted fibers of quartz found in some chalcedony are even more remarkable. These fibers, often...microscopic dimensions (see ris Agate, under Chalcedony). References 1. Frondel: 2. Frondel: 3. Billows:...Bolivia, in sulfide veins; and at Hamburg, Cochise County, Arizona. Small twins up to 1.5 mm. in size occur |  | | Book (volume) | | Higgins Come = CG4S1% Manaying Editars VOL. VI Mining and Metallurgy Che Making of America Cu, i Chicagu...The Making of America Co. CONTENTS VOLUME VI. MINING AND METALLURGY. Mineral Resources of the United...Electricity in Mining. — BYE HOMAS | COMMERFORD@MLARTINGS os s(06-0 cies ond «deed bees Sy Iron Ores. . ... BY JOHN BIRKINBINE..... t The Mining of Iron. PUVA AAI ONG LUA WCET a WA Tn SRLS eee 61 fica s cn...American Iron Industry. PVAURC CLR ODSROWING torent Poe oo cc MeN coe a cles cloaite 95 The Iron Industry |  | | Book (volume) | | the Mineralogical Society and The Institution of Mining and Metallurgy on the ferrous, non-ferrous and...clear descriptions of the classical and producing mining districts and the larger deposits are required...interested in prospecting, by organizations requiring mining and mineral statistics, by compilers of atlases...non-specialists, who may include, for example, mining company executives, investment consultants and...The Institution of Mining and Metallurgy Published by The Institution of Mining and Metallurgy and |  | | Report (issue) | | BILLINGS, Geoscience PAIGE W. CHRISTIANSEN, Historian-Mining ALLAN R. SANFORD, Geophysics F RA N K B. TITU... BULLETIN 10 The Geology and Ore Deposits of Sierra County, New Mexico by GEORGE TOWNSEND HARLEY 1934 New...Director A Division of New Mexico Institute of Mining and Technology Stirling A. Colgate, President ...Sec. 63-1-4 Printed by New Mexico Institute of Mining & Technology Photo Laboratory, Sept. 1972 Bound...------------------------------------------- 15 Mining districts 16 Climate and vegetation ---------- |  | | Book (edition) | | For the Student of Elementary Mineralogy, the Mining Engineer, the Geologist, the Prospector, the Collector...gives the indices 221 for the face. To deter 192. mine, by plotting, the axial ratio of an orthorhombic...common (this form of pyrite is often called the iron Here the cubic axis is the twinning-axis, and cross)...a movable bubble); or, they may contain sand or iron oxide in large amount. In the case of calcite, crystallization...181). of gases yielded by smoky quartz, meteoric iron, and other substances, on the application of heat |  | | Report (issue) | | 517, 518. Alviggan �ioor, lode on, 304. Ancient mining, 522-547. Amalebria, china clay of, 513. Andrew...6naata, 239, 244. - - corri1nunis, 224. Area of the district, 1, 2. -- Davcei, 224. -- dena1ri1ts, 247. Argentiferous... 471, raised beach near, 424. Bal, 566. Baldt1e Mine, 621. Balk, serpentine of tl1e, 499 ; passage of...the, 30 ; granite veil1 at the, 173. Ballaswidden Mine, 552, 553, 555, 583. Balnoon 1\1ine, 306, 583, 621...24. Barley, soils st1itable £01·, 472. Bar11coose Mine, 19. Bar11es, Wheal, 621. Bar11staple, gratlwacke |  | | Book | | grateful thanks to his Mr. Robert Hunt (Keeper of Mining Records), and, especially, to Mr. Warington Smyth...carefully drawn on the wood by Mr. J. B. Jordan of the Mining Record Office, and the whole of the wood-cuts have...possess the sieel-tarnish ; when, as in the Specular Iron Ore of Elba, it exhibits fixed prismatic Opalescence...brilliancy to give well-defined images, as Specular Iron. (2.) Shining : when the image produced by reflection...proceeding from points on the surface, as in Flint, Chalcedony, &c. Optical and Physical Properties. The former |  | | Book (volume) | | up 165 for to Temiskaming Cochrane district read district. Ref. 4, under oruetite, add See also... for VVakatipu district, CoUingwood, 294 Zealand read Wakatipu 303 line district, 8 in synonomy...and the corresponding citation (Hudson Bay 309 mine). in Ref. 4, line Z, for 670 read 676. 310 in...pageite read paigeite. for Algoma district read Sudbury District. in the left Itand figure in the...say that this guarantee did much to deterrepaid. mine the award of the grant. To Mr. W. 0. Wiley, Chairman |  | | Book | | Chapter 35 Consideration of Certain Aspects of Banded Iron Formations (BIFs) with Emphasis on Precambrian BIFs...shales, hornfels and granites of the Harzburg district, showed that the amount of boron decreases from...chalcopyrite, stannite, native bismuth. 4. Manganese-iron-magnesium carbonate, sphalerite, galena, tetrahedrite...(often manganiferous) fluorite, calcite, barite, chalcedony (epithermal ores). The sequence corresponds in...mineralizing fluids as a result of its reaction with iron of ferromagnesian minerals in the country rock to |  | | Book | | should not use "Fe-Sicklerite'' but rather ferrous-iron analogue o f Sicklerile or, for convenience, fe...b) mixture of Variscite or Wardite and Quartz [Chalcedony] Ablygonite = a) Amblygonite, b) Montebrasite...= Albite [Plogioclose] Abakusz-Ko = Quartz (Chalcedony] Absite = thorian Brannerite Absah-Gel = Montmorillonite...Quartz [Agate] Achat Vix Pellucida = Quartz [Chalcedony] Achates = Quartz [Agate] Achates Unguium Colore...[Ch rysoprose) Achates Chalcedonius = Quartz [Chalcedony] Achatjaspis = Quartz [Agate] Achatturkiz = |  | | Book (edition) | | white, siskin gfeen, liver brown silver white, iron black, and gold yellow 2nd, from metallic substances...black and a is portion of ash grey. ash grey. b . Iron black Is very makes the It principally distinguished...passes into steel grey. Examples, magnetic iron stone, and iron mica. Velvet black c. It d is the characteristic...known blue mixed with grey and a Example, blue iron stone. Example, It is that of sapphire. mixed...into milk white. Examples, ame- thyst and blue iron earth* h. Sky blue little is composed of Berlin |  | | Book | | Not- withstanding our valuable mines of lead, iron, rock-salt, was paid to and tin, copper, coal...To rals, facilitate I the knowledge of earthy mine- have prefixed to Book II. tabular a arrangement...visiting I trust, will, be acceptable and of a mine- instructive, as the simple inspection ral will...species. With respect to combustible and saline mine- X PREFACE. rals, the characters are so definite...stantly It is true, minerals are taken from the mine in cabinets, they appear to no further change, |  | | Journal (issue) | | molybdenite, and helium gas; analyses of the Lake Superior iron ores; the production of magnesium silicate concentrate...by products ; so also Canadian asbestos, from the mine to the latest type of asbestos cements or bricks...Afican copaiba gum '') collected in the West Nile District. It was desired to ascertain whether the resin...accordance with quality is desirable. • TANGANYIKA • MINING ACTIVITY I N 1 937 chief minerals produced in...THE TA NGANYIKA-MINING ACTIVITY IN 1937 483 The following account of the mining developments in r937 |
|
