 | | Journal (article/letter/editorial) | | chemicallyextract- fractionationcorrection.For osmiridium,the hydride ing Os from rocksandfor efficientionizationduring...isotopeabundances malizedto 186Os/188Os 1983). Nine duplicate osmiridium analyses (Table1), maybe particularlyapplicablein...duction. Whilemeasured 187Re/18•Os ratiosin theosthe Loraine, PresidentBrand, and PresidentSteyn miridiums averaged...correctionswere well outsidethe generalpopulation(1.371, Loraine; never more than 0.2 to 0.4 percent.Becauseof the...of thesesamples, the Oshydride the PresidentBrand mine were scannedfor high at masses 191 and 193 could |  | | Report (issue) | | ore. Both actual size. A2 A. AB Reef, Denison Mine, Elliot Lake, Ontario. (Samples courtesy of V. Ruzicka...Leader Reef, about 1500 m depth, Blyvooruitzicht Gold Mine, Carletonville, Witwatersrand. (Sample courtesy...courtesy of D. K. Hallbauer, Chamber of Mines of South Africa ; radioluxograph by David M. Watson, Geological...Grandstaff. Discussion. South Africa: D. Uraniferous quartz-pebble conglomerates in South Africa, by J. W. von...model on the Kaap-Vaal craton, Witwatersrand, South Africa, by W. E. L. Minter. Discussion. F. The Dominion |  | | Journal (article/letter/editorial) | | from the Witwatersrand gold-uranium deposits, South Africa, and from the uranium ores and natural fission...upward sequence of arkose. Sample RAD74- 1 I, Denison Mine. Kerogen in uranium ores 3253 FIG. 2. Photomicro~ph...(arrow) by low reflecting, homogeneous, inclusion-free bitumen, portions of which occupy fractures, together...reflecting grains), in host rock. Sample from Quirke Mine. 3254 D. J. Mossman, B. Nagy, and D. W. Davis...matrix of kerogen. Sample is from the Stanleigh Mine. Field of view = 1 mm wide. vicinity of uraninite |  | | Journal (article/letter/editorial) | | composition of galenas from the Witwat~~rand and Orange Free State, and their relation to the Witwatersrand and...various mines in the Witwatersrand and the Orange Free State. Certain of the galenas have large proportions...radiogenic lead, and one sample from the St. Helena mine contains a spectacular variation in the proportions...calcite veins in the Witwatersrand and Orange Free State. An account ofcertain aspects of their genesis...understanding of cerOain problems in ore-genesis and in South African stratigraphy; definition and discussion |  | | Book | | California, Berkeley, prepared as a report to the State Board of Agriculture an "Annotated Catalog of the... the first state mineralogist of California, and published in the fourth and sixth State Mining Bureau...date of the cutoff for data in the last California state edition, plus some data from the literature of earlier...Mines and Geology Los Angeles Office, who provided state publications for review; and finally, Marge and...meteorites.* The large number of species found in the state is the result of the diverse character of the state's |  | | Book | | 447 467 491 Company Index 503 Tables: World Mine Production of Gold, Silver and Base Metals 5A2...Mining OFFICES: 5011 Meadowood Way Paradise Peak Mine Suite 300 (100% FMC Gold) * Sales Reno, Nevada...Elko, Nevada (303) 292-7500 Royal Mountain King Mine (100% FMC Gold) Copperopolis, California Beartrack... Gold's price fell to levels at which half the South African gold mines, probably half those in Australia...have been widespread, especially in the highcost South African mines. Some say a structural change is taking | | | Book | | ^ '“ P r . . . I West Orange SOUTH SAN FRANCISCO PUBLIC LIBRARY 9048 00992838 7 257989 R q549...Agriculture an “Annotated Catalog of the to the State Principal Mineral Species Hitherto Recognized in...first state list. list of 135 species mineralogist of California, and pub- and sixth State Mining...date of the cutoff for data in the last California state edition, plus from the It is literature 1964...and John Sinkankas, the project, and who who state publications for gave advice and support for also |  | | Book (edition) | | OF OF SOUTH AFRICA MINES GEOLOGICAL SURVEY MINERAL RESOURCES OF REPUBLIC OF THE SOUTH AFRICA...Government Private Bag X85, Price R5,30 Abroad Post Free ISBN Printer, Bosman Pretoria, 0001 R6,65 O...Second World War, and partly as a result of it, South Africa experienced vast industrial expansion. This...official ‘handbook on the mineral resources of South Africa, it has become necessary to revise, or rather...great diversity and magnitude of South African mineral deposits and local mining operations, the Economic |  | | Book | | t a t e d Bibliographies of Mineral Deposits in Africa, Asia (exclusive of t h e U S S R ) a n d Australasia...Australasia JOHN DREW RIDGE The Pennsylvania State University College of Earth and Mineral Sciences University...him. I have tried to include all ore districts in Africa, Asia (exclusive of the U.S.S.R.)> and Australasia...incluir todos los distritos mineros conocido en Africa, Asia (con exclusion de la Union Soviética), y...Greenland. This volume covers mineral deposits in Africa, Asia exclusive of the U.S.S.R., and Australasia |  | | Book | | relevant protective laws and regulations and therefore free for general use. Product Liability: The publishers...Hong Kong 32/3145-5 4 3 2 1 0 - Printed on acid-free paper Preface An important prerequisite to the...recognition criteria of uranium mineralizations on a local (individual deposit) and regional scale (uranium...individual deposits or districts. (in brackets country, district, deposit reviewed): Adamek P. (Scandinavia), Adams...(general), Bernik J. (Yugoslavia), Brynard S.A. (South Africa, Namibia), Chenoweth W. (Colorado Plateau, USA) |  | | Book | | competent to furnish an unobjectionable and error-free account. The last large section, recognition of... INTERGROWTHS OF THE ORE MINERALS 3 I n the present state of knowledge, the section as a whole ië incapable...contents, say of lead or bismuth or uranium ? Is it a local, continuous, comparatively superficial cycle, t...G and F indicates t h a t here melt and gaseous state are no longer to be distinguished, and t h a t one...places of extreme differentiation (e.g., at the Frood Mine and at Insizwa) bismuth and tellurium minerals are |  | | Book | | materials form crystals when isolated in a pure state. By studying these crystals, biologists and medical...metallurgical, ceramic, or polymer materials, in solid state physics or chemistry, or in the biological sciences...not necessary for recrysta lli zation a nd so lid-state reaction to take p l ace, but it does speed up metamorphic...destroys fossils and sed im entary textures; solid-state reaction and metasomatism change the original compositio...size o f the particles and deposit them in new local i t ies. Sediments dropped by streams form alluvial | | | Book | | materials form crystals when isolated in a pure state. By studying these crystals, biologists and medical...metallurgical, ceramic, or polymer materials, in solid state physics or chemistry, or in the biological sciences... ORIGIN OF METAMORPHIC ROCKS Rock type SOLID-STATE REACTION is one of the important mechanisms of metamorphism...chemnot necessary for recrystallization and solid-state reaction to take place, but it does speed up metamorphic...destroys fossils and sedimentary textures; solid-state reaction and metasomatism change the original compositions |  | | Journal (volume) | | Accidents, Mine, 250. and, by R. E. Hore, 602, 777.* Accidents, United States, Coal mine, 273.* Asiatics...328, 365. Buli'alo Mines, Limited, Seventh Annual Mine Rescue Work, 276. Alaska, Chisana Gold Field, 728... 108. and Utilization of, 140. W.— — Alaska Mine, 728. Granby Company Bought, Book Reviews- Cyanide... Alaska United Gold Mining Co., 366. Alberni District, B.C., Copper Ore in, 632. Alberta and British...of the Province of, 52. Alberta, Coal Mining in South Western, Ries, 47. Introduction to the Study of |  | | Report (issue) | | JUNE COWEN 1977. Mountain diamonds The Roof of Africa — that’s what they call the wild peaks and sweeping...highest-lying diamond pipe. Commissioning Letseng mine at 10 500 feet during the last two years has called...Whatever you're mining, wherever you're mining, mine it on Bridgestones Bridgestones — for all the variables...Operating conditions differ enormously from mine to mine. Not only are there variations in the kind of...Whatever you’re mining, wherever you’re mining, mine it on Bridgestones. iaaseinn Money — BRIDGE STONE |  | | Journal (volume) | | Superior to Expand By Letson Safety and Economy in Mine Ventilation . The Prosperting Spirit . Editorial...Low Eagle & Blue Effects U. S Coal Company's Mine near Kemmerer, Wyoming. Votes of Chloridizing...Montana 28 29 3 4 35 Oxidized Oreserof the Tintie District. By G. F. Loughlin American 26 Leaching for...for Six Months . Editorial Cicial accia Tintic District Has Years. By Will C. Higgins Manhattan Editorial...Millmen Manhattan 13 16 P. Notes on McCoy District Developments at the Packard Effect of Conditions |  | | Journal (volume) | | f.p. for for:v -" ...THE EN. N o GI "RNAL MINE NI'N NG G. J ou VOLUN/1E JANUARY TO LXIII. ...Aluminum, Prices of.................. 565 Accident Mine, Colo.......... 97 63, 159 Aluminum Reduction, Gooch's...118 Alabama Industrial and Scientific Amador Queen Mine, Cal..... ...... 263 Acetylene Gas, Conner's Pat... Doddridge's Pat...... 487 "Alabama, Johns Coal Mine. 74 Amalgamating Process, FischerAcetylene Gas,...Acetylene Gas, Sergeant's Pat........ 190 Alameda Mine, Cal.................... 548 Acetylene Gas, Vincent's |  | | Journal (volume) | | STATE OF CALIFORNIA EARL WARREN, Governor DEPARTMENT OF NATURAL RESOURCES WARREN T. HANNUM, Director...GEOLOGY LIBRARY iWIVERSITY OF CALIFORNIA Davis 1 STATE OF CALIFORNIA EARL WARREN, Governor DEPARTMENT OF...Third Floor, Ferry Building, San Francisco 11 District Offices West First Street, Los Angeles 12 631...631 J Street, Sacramento 14 Box 445, Redding State Building, 217 The Division of Mines maintains at its...from the mining centers of the state; exhibits of minerals, rocks, mine models, etc.; a service laboratory |  | | Book | | Ontario, Californie, Alaska, Colorado, Nevada, South Dakota, Montana, Arizona et Utah. 70 TABLEAU...Le Mexique en est le principal producteur; on le mine de roches granitiques des Rocheuses méridionales...DE CUIVRE Cuivre arborescent Broken Hill, New South Wales, Australie : : en Cristaux de cuivre Keweenaw...qui donnent leur composition: platiniridium, osmiridium, iridosmine, etc. Donc, l'iridosmine contient...Pépites de platine Oural, U.R.S.S. — Palladium Osmiridium Norwich, Connecticut Iridosmine Sisserk, U |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....the sequence North and South America and Greenland, then Europe, Asia, Africa, Australia, and Antarctica)...pegmatitic origin in the same sequence: North and South America and Greenland, then Europe, etc. For some...Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]•6HzO |  | | Book | | continues to burn in a shell overlying the helium-free core. It first burns radiatively, but then becomes...photodisintegration of silicon into a-particles and free nucleons is accompanied by the capture of these...implications for the cosmological equation of state. Astrophys. J. 557, 279–291. Edvardsson B., Andersen...the isotopic compositions of the parent stars by local heterogeneities in the galaxy caused by the stochastic...measurements of single grains from acid residues free of silicates. In contrast to SiC, essentially all |
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