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| HOLLAND and U. PETERSEN HYDROTHERMAL URANIUM DEPOSITS 10. G.B. FETTWEIS WORLD COAL RESOURCES Methods...and Results 1 1 . R G . TAYLOR GEOLOGY OF TIN DEPOSITS M.H.K. GUPTA GEOTHERMAL RESOURCES An Energy Alternative...GEOCHEMICAL PROSPECTING FOR THORIUM A N D URANIUM DEPOSITS 17. G.R. PARSLOW(Editor) ' GEOCHEMICAL EXPLORATION...BÔHMER PROSPECTING A N D EXPLORATION OF MINERAL DEPOSITS (second completely revised edition) 2 2 . N. DEKUN...MINERAL EXPLORATION 2 4 . TA.P. KWAK W - S n SKARN DEPOSITS And Related Metamorphic Skarns and Granitoids |
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| Livengood-Tofty metallogenic province Salcha-Seventymile River metallogenic province Alaska Range Eastern Alaska...contain the precious metals, gold, silver, and platinum-group elements (PGE), ferrous metals, including...and zirconium are variably present in placer and lode deposits in geologic terranes that contain ophiolites...studies initially concentrated on chromium and platinum-group elements (PGE) and were focused on mafic...areawide studies that have focused on specific mining districts and various federally-owned lands in |
 | | Journal (article/letter/editorial) |
| alluvial-fluvial placer deposits from the Bayerischer Wald, SE Germany: hollingworthite and ferroan platinum Harald...Bavaria, Germany, alluvial-fluvial Au-PGE placer deposits containing native gold, gold amalgam, gold-silver-copper...(irarsite-hollingworthite s.s.s.), sperrylite, platinum-iron-, iridium-osmium- and ruthenium-iridium-osmium...to have delivered the PGE minerals of the placer deposits in the Bayerischer Wald. The morphology of...cubic crystallographic system. Grains of ferroan platinum show distorted octahedral crystals twinned according |
 | | Journal (article/letter/editorial) |
| energydispersive spectra contain peaks of platinum, rhodium, and iron. The methodology of obtaining X ray...glass, as well as abundant micronic drops of native iron. Most likely this late mineral association formed...(the first 20 µm Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian... Thus, entrance of Fe in the composi tion of platinum particles is confirmed on the basis of subtraction...practically does not reveal the con tours of platinum particles contrasting in backscat tered electrons |
 | | Journal (article/letter/editorial) |
| 441, No. 1, pp. 83–87. GEOLOGY Contrasting PlatinumGroup Mineral Assemblages from Chromitites of...associated with worldclass platinumgroup elements (PGE) placer deposits. Both massifs contain small...‘unradiogenic’ 187Os/188Os values obtained for both platinumgroup minerals (PGM) and chromitite are indicative...chromitite is largely controlled by laurite and Osrich alloy. Average model 187Os/188Os ages calculated for the...temporal evolution of ultramafic rocks of the Uralian Platinum Belt and northern segment of the Siberian Platform |
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| EARLY METAL MINING AND PRODUCTION Paul T. Craddock Technical advancement has for millennia been intimately...intimately linked to the mining and production of metals, and this book provides a comprehensive history...first time the evidence for the very inception of mining and smelting, showing that early techniques were...book gives a full and approachable synthesis of mining and metal production everywhere. PAUL T. CRADDOCK...in the Department of Scientific Research at the British Museum. He has studied and written widely on |
