 | | Journal (article/letter/editorial) | | ALTERATION AND MINERALIZATION IN THEJ–MREEF,STILLWATER COMPLEX,MONTANA JOSEPH S. POLOVINA 1254 Wonder Court...Court, Gardnerville, Nevada 89460, U.S.A. DONALDM. HUDSON 1540 Van Petten Street, Reno, Nevada 89503...borehole samples from theJ–MReef and its footwall in theStillwater Complex,Montana. We used optical microscopy...altered in the least-alteredreef sample. In the weakly altered samples of thereef, BMS occur in aggregates...aggregates contain inclusions of PGM from 80 to 130 m across at the BMS–silicate contact. In strongly altered |  | | Journal (article/letter/editorial) | | COMPOSITION OF PLATINUM-GROUP MINERALS IN THEJ-MREEF,STILLWATER COMPLEXBÉLINDA GODEL,†Centre for Exploration...platinum-group element (PGE)–bearingJ-Mreef,Stillwater Complex (Montana).The aims of the study were to...consist of Pd ± Pt sulfides,Pt-Fe alloy (isoferroplatinum), Pd ± Pt tellurides, and Pd-Cu alloy (skaergaardite)...secondfluid migration event. The Pd/Pt ratio of thereef (~3.3) is higher than most mafic magmas and the...of the Pd in thereef was leached from the underlyingrocks and deposited in thereef as PGM associated |  | Ripley, Edward M., Wernette, Benjamin W., Ayre, Annie, Li, Chusi, Smith, Joshua M., Underwood, Benjamin S., Keays, Reid R. (2017) Multiple S isotope studies of the Stillwater Complex and country rocks: An assessment of the role of crustal S in the origin of PGE enrichment found in the J-M Reef and related rocks.Geochimica et Cosmochimica Acta, 214. 226-245doi:10.1016/j.gca.2017.07.041 | Journal (article/letter/editorial) | | ManuscriptMultiple S isotope studies of theStillwater Complex and country rocks; Anassessment of the...origin of PGE enrichment found in theJ-MReef and related rocksEdwardM. Ripley, Benjamin W. Wernette, Annie...Annie Ayre, Chusi Li, JoshuaM.Smith, Benjamin S. Underwood, Reid R. KeaysPII:DOI:Reference:S0016-7037(17)30465-9...Keays,R.R., Multiple S isotope studies of theStillwater Complex and country rocks; An assessment of the...S in the origin of PGE enrichment found in theJ-MReef and related rocks, Geochimica et Cosmochimica |  | Wernette, B.W., Ripley, E.M., Li, C., Wintsch, R.P. (2018) Strongly negative δ34S values associated with secondary pyrite above and below the J-M Reef, Stillwater Complex, Montana.Chemical Geology, 493. 58-66doi:10.1016/j.chemgeo.2018.05.023 | Journal (article/letter/editorial) | | secondary pyriteabove and below theJ-MReef,Stillwater Complex,MontanaB.W. Wernette, E.M. Ripley, C....secondary pyrite above and below theJ-MReef,Stillwater Complex,Montana. The address for the corresponding...Secondary Pyrite Above and Below theJ-MReef,Stillwater Complex,MontanaIPTWernette, B.W.1†, Ripley...Indiana University, Bloomington, Indiana 47405,USAUS† – current address: Division of Earth and Ocean...Carolina 27708,USAACCEPTEDMANKeywords: Sulfur isotopes,Stillwater Complex,J-MReef, secondary |  | Cowden, A., Ruddock, R., Reay, A., Nicolson, P., Waterman, P., Banks, M. J. (1990) Platinum mineralisation potential of the Longwood Igneous Complex, New Zealand.Mineralogy and Petrology, 42 (1) 181-195doi:10.1007/bf01162690 | Journal (article/letter/editorial) | | k 2, A. Reay 3, P. Nicolson*, P. Waterman 4, andM.J. Banks 5Delta Gold NL, South Perth, Western Australia...gabbro zones within the BandedSeries of theStillwater Complex. The mineralised rocks are leucocratic...mineralisation style and its host rocksto the JMReef of theStillwater Complex and AP and PV mineralisation of...Anorthosit-Troktolit-Olivin-GabbroAbfolge der Banded Series desStillwater Komplexes.Die mineralisierten leukokraten Gesteine...Mineralisation und ihrer Nebengesteine mitdem JMReef desStillwater Komplexes und der AP und PV Mineralisation |  | | Journal (article/letter/editorial) | | October 2016, Vol. 80(6), pp. 1041–1053Isoferroplatinum-pyrrhotite-troilite intergrowth as evidence...evidence ofdesulfurization in the MerenskyReef at Rustenburg(western Bushveld Complex, South Africa)ALEXANDER...samples of the Normal (or undisturbed) MerenskyReef fromFrank Shaft No.1 at Rustenburg Platinum Mine...revealed the presence of a Pt-Fe-alloy, probablyisoferroplatinum (58 vol.% of total precious metal minerals)...petrographic results indicate that the normal thinreef has also undergonehydrothermal alteration. For |  | | Journal (article/letter/editorial) | | Sulfide and platinum mineralization in the MerenskyReef:evidence from hydrous silicates and fluid inclusions...Abstract. The base metal sulfides of the MerenskyReefare associated with hydrous silicates and intense...have thus far notbeen described from the MerenskyReef. The earliest fluidinclusion compositions are NaCI-(H20)...intercumulus stage of the crystallizing MerenskyReef is directly related to the mode ofsulfide precipitation...pattern of platinum-group mineralsin the MerenskyReef better than any orthomagmatic mineralization concept |  | | Journal (article/letter/editorial) | | Petrology© by Springer-Verlag 1990The Sompuj irvi PGEReef in the PenikatLayered Intrusion, Northern Finland...andJ.J. Lahtinen 21Department of Geology, University of Oulu, Oulu, Finland, 2 0 u t o k um p u Oy...December 14, 1989SummaryThe Sompujfirvi (SJ) PGEReef is located at the border between the third and fourth...d typewithin the SJReef was formed.ZusammenfassungDas Sompujiirvi PGEReef in der Penikat-Intrusion...Sompuj/irvi (SJ) PGEReef liegt im Grenzbereich von Megazyklus III und IV, 4001000m oberhalb der Basis |  | | Journal (article/letter/editorial) | | NelsonLead isotopes in sul®des from theStillwater Complex,Montana:evidence for subsolidus remobilization...suite of samples from the platiniferousJ-MReef of theStillwater Complex were measured to elucidate the...351310University of Washington Seattle, WA 98195,USAe-mail: mccallum@u.washington.eduEditorial responsibility:...enrichment and redistribution in theJ-MReef of theStillwater Complex. Previous measurements of the...chemicaldisturbance since their formation.TheStillwater Complex has been described in a recent review |  | | Report (issue) | | Beneficiationof Platinum-Group ElementsEdited byLouisJ. CabriOttawa, OntarioPublished for the Geological...EnglandMoscow, RussiaLondon, OntarioButte,MontanaModena, ItalyCape Town, Republic of South Africa...recent work on the contact-type and magnetititereef-type mineralization in ferroan olivine gabbros,...types of mineralization such asthe MerenskyReef, the UG2Reef, the Platreef, the Main Magnetitite, and...emplacement and solidification of theStillwaterComplex (Montana) are described and discussed by Zientek |  | | Book (edition) | | OX5 1 GB, UK225 Wyman Street, Waltham, MA 02451,USACopyright © 2015, 2008 Elsevier B.V. All rights reserved...BerndtiteisotropicMoschellandsbergiteIsoferroplatinumweakAllargentumweak, sometimeswith wavy...Bullfrog Mine, Bullfrog District, Nye Co., Nevada,USA (sample: Witzke);PPLIf marked in description, ▼...mlb60 MoschellandsbergiteElementsAccppmlbmlb19 μB60 μ61 PotariteI/A.02-090Synonym(s):...left); Bleida Far West Mine,Zone Breches N-S, 49-51m, Bleida, Bou Azzer District, Tazenakht, Ouarzazate |  | Bai, W., Robinson, P. T., Fang, Q., Yang, J., Yan, B., Zhang, Z., Hu, X.-F., Zhou, M.-F., Malpas, J. (2000) The PGE and base-metal alloys in the podiform chromitites of the Luobusa ophiolite, southern Tibet.The Canadian Mineralogist, 38 (3). 585-598doi:10.2113/gscanmin.38.3.585 | Journal (article/letter/editorial) | | Pt–Fe alloy has a composition close to that ofisoferroplatinum (Pt3Fe), assuming that the deficiency in Pt...by reduction of sulfides (cf. Dick 1974).Isoferroplatinum (Pt 3 Fe), platinian awaruite (Ni,Pt)3Fe,...the Pt–Fe alloy at Luobusa does not fit anisoferroplatinum stoichiometry and contains little or no Pd...are responsible for any errors or omissions. LouisJ. Cabri kindly provided advice on nomenclature. This...Bai, and the Hong Kong Research Grants Committee toJ. Malpas and Mei-Fu Zhou. REFERENCES AUGÉ, T. (1988): |  | | 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 andextends...with thelayering of the massif. We use the term “reef” conventionally to designate, according to A.J....similar tothe well-known reefs in the Bushveld,Stillwater,Fedorova–Pana Tundras, and other mafic–ultramafic |  | | Journal (article/letter/editorial) | | Montana Mineral Locality IndexDownloaded by [University of Nebraska, Lincoln] at 20:00 09 April 2015...2015KNOWNAS THETREASURE STATE,Montana is rich in mineral and gemstone localities. Thestate motto...state is known as theMontana alkali province where the sediments haveMICHAELJ. GOBLA19055 East Bethany...Indian Queen mine ca. 1905 at Farlin, BeaverheadCounty.208ROCKS & MINERALS Downloaded by [University...mines at Butte in Silver BowCounty and the Black Pine mine in GraniteCounty haveproduced many fine crystal |  | | Book | | 181-20110. PGE Potential of Porphyry DepositsM. Economou-Eliopoulos203-246EXPLORATION METHODS... 14. Lithogeochemical ProspectingW.D. Maier, S.-J. Barnes309-341CASE HISTORIES15. Fedorov-Pana... Michaud,J. Rickard369-39018. Discovery of theJ-MReef,Stillwater Complex,Montana: the role of... Wilson, R.T. Brown409-42920. The PlatinovaReef of the Skaergaard intrusionT.F.D. Nielsen, J.C...INTRODUCTIONBUSHVELD COMPLEXUG2 ChromititeMerenskyReefSTILLWATER COMPLEXGREAT DYKEMUNNI MUNNI INTRUSIONSKAERGAARD |  | | Book | | PARSLOW(Editor)'GEOCHEMICAL EXPLORATION 1 9 8 218.M. KUZVARTINDUSTRIAL MINERALS A N D ROCKS19. P. LAZNICKA...and Management of Natural Resources2 1 .M. KUZVART andM/ BÔHMERPROSPECTING A N D EXPLORATION OF MINERAL...Burgerhartstraat 2 5P . O . B o x 2 1 1 , 1 OOO A E Am s t e r d am , T h e N e t h e r l a n d sDistributors...StatesandCanada:ELSEVIER SCIENCE PUBLISHING C OM P A N Y INC.5 2 , Vanderbilt AvenueN e w York, N...o nm a y b e r e p r o d u c e d , s t o r e d in a r e t r i e v a l s y s t em o rt r a n sm i t |  | Sharkov, Evgenii V., Bogatikov, O. A., Grokhovskaya, Tanya L., Chistyakov, A. V., Ganin, Vyacheslav A., Grinevich, Natalia G., Snyder, Gregory A., Taylor, Lawrence A. (1995) Petrology and Ni-Cu-Cr-PGE Mineralization of the Largest Mafic Pluton in Europe: The Early Proterozoic Burakovsky Layered Intrusion, Karelia, Russia.International Geology Review, 37 (6) 509-525doi:10.1080/00206819509465415 | Journal (article/letter/editorial) | | chromite seam—the main chromite horizon (MCH)—is 3 to 4m thick and issituated at the top of the UZ, in contact...place them within the aurite-erlichmanite andisoferroplatinum-awaruite series. Low-sulfur PGE mineralization...to nology and it is used purely for descriptive60m thick) and all data about its composition purposes...chromite horizoncores of shallow (mainly 200 to 300m depth,MGZ = magnetite gabbrodiorite zonesome to...subzones. The lowerdunitic subzone (~2500 to 3000m in thickness) is composed of adcumulus and mesocumulus |  | | Journal (article/letter/editorial) | | B). The Butyrin vein extendsover about 5 3 1.2m in size and consists of severalamphibole-rich clinopyroxenite...clinopyroxenite veins (Figs. 3C, D). Itis about 3m long. The vein has an irregular shape andin some...of the Butyrinchromitite do not display typicalM-shaped patterns ofUralian–Alaskan chromitites. Rather...classified as tulameenite, tetraferroplatinum orisoferroplatinum. However, they fall in thefield of the alloys...Sulfide and platinum mineralization in the MerenskyReef: evidence fromhydrous silicates and fluid inclusions |  | | Book | | Subsequent work byH.H. Hess and E.D. Jackson (Stillwater) and B.V. Lombaard (Bushveld) revealed problems...of the upperCrystal-free magmaLiquidus~ AX.jo').=_(/}c~).{:(/}(1:1(1)toQ)to~Suspension...dolerite rangingfrom 1 to 10m in thickness. It is located 10 to 13m above the basal contact of the...olivine-rich zone by flow segregation. Irregularcm- tom-scale layering within the olivine horizon appears...cycles. Similar cyclic units are present in theStillwater, Great Dyke, Bushveld, Rum, Jimberlana, and other |  | | Journal (volume) | | Fiskenaesset, Sittampundi,Soutpansberg, Bushveld,Stillwater).In the Akanvaara and Koitelainen intrusions...Koitelainen area is 260m a.s.l., andin the southern part of the Keivitsa-Satovaaraarea 220m a.s.l. The highest...Koitelainen tunturi (fell), 408ma.s.l. Keivitsa hill rises 80–90m above the surrounding lakes and...some low hills and ridges with a base level 180–190m a.s.l. The Akanvaara hill (actual-ly a row of hills)...the roof of the intrusion,reaches a height of 440m. Dry moraines arecovered with spruce forests; pine |  | | Book | | Comprehensive Example: The Creede District, Colorado,USA4.11. Summary4.12. Recommended Reading.!CHAPTER...culminating with the Creede veintype deposit (Colorado,USA) as a comprehensive example.The second part of the...fractionation), the concentration of i in the residuamagma, C,m• is given by:(2. 3where 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 trendFlowsa.extrudedfrom� --J --�--f umagmachamberb.LCrystallization |  | | Report (volume) | | James M.D. DayScripps Institution of Oceanography,USAFront-cover: Proton-induced X-ray emission maps...Editor, Ian Swainson.REFERENCESAulbach S, MungallJ, Pearson DG (2016) Distribution and processing of...lithosphere. Rev Mineral Geochem 81: 239–304Barnes S-J, Ripley EM (2016) Highly siderophile and strongly...deposits.Rev Mineral Geochem 81:725–774Barnes S-J, Naldrett AJ, Gorton MP (1985) The origin of the fractionation...asteroids.Rev Mineral Geochem 81:161–238EmsleyJ (2011) Nature’s Building Blocks: An A–Z Guide to the |  | | Book (edition) | | Hall Inc., 29 West 35th Street, New York NY10001,USAChapman & Hall Japan, Thomson Publishing Japan, Hirakawacho...the UK,David Vaughan (Manchester); and from theUSA,Pete Dunn (Washington) and Ben Leonard (Denver)...of Standards. SpecialPublication 440.Fleischer,M. & Mandarino, J.A. (1991): Glossary ofMacAdam, D...Mineral., 18, 511-518.Kostov, I. & Minceva-Stefanova,J. (1981): Minerals:Crystal Chemistry, Parageneses...BritishMuseum (Natural History), London.Font-Altaba,M. (ed) (1970): International tables for themicroscopic | | | Book (edition) | | ORE MINERALSTHIRD EDITIONEdited byA .J . Criddle and C .J . StanleyDepartment of MineralogyNatural...the UK,David Vaughan (Manchester); and from theUSA,Pete Dunn (Washington) and Ben Leonard (Denver)...and orientation of a singlecrystal. The symbols Rp,m,g are alternative symbolsused by some authors. For...2 ANISOTROPICBIREFLECTANT405535R50o':J!.a:30452540weibullitehenryite35+-...(Natural History), University Press, Oxford.Fleischer,M. & Mandarino, J.A. (1991): Glossary ofMineral Species |  | | Book | | Depositswithin the EuropeanCommunityEdited byJ. Boissonnas and P. OmenettoWith 221 FiguresSpringer-Verlag...resources-European Economic Community countries.I. Boissonnas,J. (Jean), 1935·. II. Omenetto, Paolo. III. Series:...book arose from a conversation withProfessor H.J. Schneider, editor in chief of Mineralium Deposita...Community) in official documents.Brussels, January 1988J. BorssoNNAs ContentsPart I Tungsten (Tin, Lithium...Distinguishing FeaturesPH. RosSI, A. COCHERIE, G. MEYER, A.M. FouILLAc,and A. AUTRAN (With 9 Figures) . . . . |
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