 | | Journal (article/letter/editorial) | | platinum-group-element (PGE) sulfides and very rare potarite. Besides the PGE-rich chromitite, the dunites... B). The Butyrin vein extends over about 5 3 1.2 m in size and consists of several amphibole-rich clinopyroxenite...clinopyroxenite veins (Figs. 3C, D). It is about 3 m long. The vein has an irregular shape and in some...of the Butyrin chromitite do not display typical M-shaped patterns of Uralian–Alaskan chromitites. Rather...with the few data available in literature for potarite (Arai et al. 1999, Fleet et al. 2002, Malitch |  | | Journal (article/letter/editorial) | | Anorthosites of the Low-sulfide Platiniferous Horizon (Reef I) in the Upper Riphean Yoko–Dovyren Massif (Northern...mineralization localized in a specific taxitic horizon (Reef I) of the Yoko– Dovyren massif. The recognized compositional...mineralization is localized in a specific thin horizon, Reef I, which is located in the critical zone and extends...with the layering of the massif. We use the term “reef” conventionally to designate, according to A.J....similar to the well-known reefs in the Bushveld, Stillwater, Fedorova–Pana Tundras, and other mafic–ultramafic |  | Barkov, A. Y., Fleet, M. E., Martin, R. F., Halkoaho, T. A.A. (2005) New data on "Bonanza"-type PGE mineralization in the Kirakkajuppura PGE deposit, Penikat layered complex, Finland. The Canadian Mineralogist, 43 (5) 1663-1686 doi:10.2113/gscanmin.43.5.1663 | Journal (article/letter/editorial) | | [Pd–Pt zones associated with the low-sulfide SJ reef and Ru–Os-mineralized chromitite zones], resulting...forms part of the sulfide-poor Sompujärvi (SJ) PGE reef, located at the boundary between the MCU III and...of minute vysotskite–braggite grains (up to 5–10 m each) are observed. A broad 1665 compositional range...anhedral) micrograins ranging from less than 1 to 5–10 m and finely dispersed within the hydrous silicates...material (black) is epoxy. The scale bar is 30 m (C) and 50 m (D). tion close to end-member Pd3Pb (Fig. |  | | Book (edition) | | OX5 1 GB, UK 225 Wyman Street, Waltham, MA 02451, USA Copyright © 2015, 2008 Elsevier B.V. All rights reserved...fine crystals Atokite Stumpflite Stibarsen Potarite very weak weak, light brownish grey tints weak...Bullfrog Mine, Bullfrog District, Nye Co., Nevada, USA (sample: Witzke); PPL If marked in description, ▼...Schachnerite, Paraschachnerite, Goldamalgam, Weishanite, Potarite, Leadamalgam creme Bireflectance: 78.07 Pleochroism:... Moschellandsbergite Elements A ccp p m lb mlb 19 μ B 60 μ 61 Potarite I/A.02-090 Synonym(s): Chemical |  | | Report (issue) | | Beneficiation of Platinum-Group Elements Edited by Louis J. Cabri Ottawa, Ontario Published for the Geological...England Moscow, Russia London, Ontario Butte, Montana Modena, Italy Cape Town, Republic of South Africa...recent work on the contact-type and magnetitite reef-type mineralization in ferroan olivine gabbros,...types of mineralization such as the Merensky Reef, the UG2 Reef, the Platreef, the Main Magnetitite, and...emplacement and solidification of the Stillwater Complex (Montana) are described and discussed by Zientek |  | | Book | | 181-201 10. PGE Potential of Porphyry Deposits M. Economou-Eliopoulos 203-246 EXPLORATION METHODS... 14. Lithogeochemical Prospecting W.D. Maier, S.-J. Barnes 309-341 CASE HISTORIES 15. Fedorov-Pana... Michaud, J. Rickard 369-390 18. Discovery of the J-M Reef, Stillwater Complex, Montana: the role of... Wilson, R.T. Brown 409-429 20. The Platinova Reef of the Skaergaard intrusion T.F.D. Nielsen, J.C...INTRODUCTION BUSHVELD COMPLEX UG2 Chromitite Merensky Reef STILLWATER COMPLEX GREAT DYKE MUNNI MUNNI INTRUSION SKAERGAARD |  | | Book | | Comprehensive Example: The Cree de District, Colorado, USA 4.11. Summary 4.12. Recommended Reading .!CHAPTER...culminating with the Creede vein type deposit (Colorado, USA) as a comprehensive example. The second part of the...fractionation), the concentration of i in the residua magma, C,m• is given by: (2. 3 where F = the weight fraction...phase being removed from the silicate melt (sil), J = Dt1••i1 ; if the magma is sulfide-saturated so that...calculated Ni-depletion trend Flows a. extruded from � -- J --� --f u magma chamber b. L Crystallization |  | | Report (issue) | | 569/PIO/ADB/1988 By: Michael L. Zientek1 and Norman J Page2 OPEN-FILE REPORT 90-527 Report prepared by...99201 2U.S. Geological Survey, Tucson, AZ 85705, USA 1990 5/14/91 TABLE OF CONTENTS Executive Summary...Kodak spectrum analysis No. 1 i. Developer - D -19 j. Gas: 70 percent argon / 30 percent oxygen mixture...cover an area of 416 km2 with a thickness of about 10 m 14 5/14/91 Figure 1. Location of PGE occurrences...has defined approximately 30 million m^ of gravel with 180 mg/m^ Au by Bangka drilling approximately |  | | Report (volume) | | James M.D. Day Scripps Institution of Oceanography, USA Front-cover: Proton-induced X-ray emission maps...Editor, Ian Swainson. REFERENCES Aulbach S, Mungall J, Pearson DG (2016) Distribution and processing of...lithosphere. Rev Mineral Geochem 81: 239–304 Barnes S-J, Ripley EM (2016) Highly siderophile and strongly...deposits. Rev Mineral Geochem 81:725–774 Barnes S-J, Naldrett AJ, Gorton MP (1985) The origin of the fractionation...asteroids. Rev Mineral Geochem 81:161–238 Emsley J (2011) Nature’s Building Blocks: An A–Z Guide to the |  | | Book (edition) | | Hall Inc., 29 West 35th Street, New York NY10001, USA Chapman & Hall Japan, Thomson Publishing Japan, Hirakawacho...the UK, David Vaughan (Manchester); and from the USA, Pete Dunn (Washington) and Ben Leonard (Denver)...of Standards. Special Publication 440. Fleischer, M. & Mandarino, J.A. (1991): Glossary of MacAdam, D...Mineral., 18, 511-518. Kostov, I. & Minceva-Stefanova, J. (1981): Minerals: Crystal Chemistry, Parageneses...British Museum (Natural History), London. Font-Altaba, M. (ed) (1970): International tables for the microscopic | | | Book (edition) | | ORE MINERALS THIRD EDITION Edited by A . J . Criddle and C . J . Stanley Department of Mineralogy Natural...the UK, David Vaughan (Manchester); and from the USA, Pete Dunn (Washington) and Ben Leonard (Denver)...and orientation of a single crystal. The symbols Rp,m,g are alternative symbols used by some authors. For...2 ANISOTROPIC BIREFLECTANT 40 55 35 R 50 o':J!. a: 30 45 25 40 weibullite henryite 35+-...(Natural History), University Press, Oxford. Fleischer, M. & Mandarino, J.A. (1991): Glossary of Mineral Species |
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