 | | Journal (article/letter/editorial) | | PLATINUM-GROUP MINERALS IN THE J-M REEF, STILLWATER COMPLEX BÉLINDA GODEL,† Centre for Exploration Targeting...platinum-group element (PGE)–bearing J-M reef, Stillwater Complex (Montana). The aims of the study were to determine...consist of Pd ± Pt sulfides, Pt-Fe alloy (isoferroplatinum), Pd ± Pt tellurides, and Pd-Cu alloy (skaergaardite)...such as the Bushveld Complex (South Africa) and the Stillwater Complex (Montana) contain stratiform layers...elements (PGE). In both the Bushveld and the Stillwater Complexes, the PGE are found spatially associated |  | 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) 181-195 doi:10.1007/bf01162690 | Journal (article/letter/editorial) | | Mineralisation Potential of the Longwood Igneous Complex, New Zealand A. C o w d e n 1, R. R u d d o c k...Igneous Complex is situated at the southern tip of the South Island of New Zealand. The Complex is 32 km...volcanic, volcaniclastic and intrusive rocks. The complex is comprised of an extensive series of layered...gabbro zones within the Banded Series of the Stillwater Complex. The mineralised rocks are leucocratic plagioclaseolivine...and its host rocks to the JM Reef of the Stillwater Complex and AP and PV mineralisation of the Penikat |  | | Report (issue) | | 562(3) Z=8 X-ray Powder Pattern: Lac des Iles complex, Canada. Easily confused with braggite. 2.846 (100)...Russia; by electron microprobe. (2–3) Stillwater complex, Montana, USA; by electron microprobe. Polymorphism...moncheite, isoferroplatinum, kotulskite, keithconnite, palladian tulameenite (Stillwater complex, Montana, USA);...the Upper and Banded portions of the Stillwater complex, Montana; from near Moapa, Clark Co., Nevada;...Yuba River, Nevada Co., California, USA. At the Lac des Iles complex, Ontario, Canada. In the Yen deposit |  | | Report (issue) | | Pd0.27 Ni0.14 )Σ=1.01 S1.00 . (2) Stillwater complex, Montana, USA; by electron microprobe, corresponding...moncheite, isoferroplatinum, kotulskite, keithconnite, palladian tulameenite (Stillwater complex, Montana, USA)...Reef, Bushveld complex, Transvaal, South Africa. At the Stillwater complex, Montana, USA. From the Lac...Lac des Iles complex, Ontario, Canada. In the Santiago River, Esmeraldas Province, Ecuador. At the Luanga...Luanga complex, Serra dos Carajas, Para, Brazil. From the Noril’sk region, western Siberia, and in the Lukkulaisvaara |  | | Journal (article/letter/editorial) | | October 2016, Vol. 80(6), pp. 1041–1053 Isoferroplatinum-pyrrhotite-troilite intergrowth as evidence...Merensky Reef at Rustenburg (western Bushveld Complex, South Africa) ALEXANDER KAWOHL1,* AND HARTWIG...revealed the presence of a Pt-Fe-alloy, probably isoferroplatinum (58 vol.% of total precious metal minerals)...Merensky Reef, Bushveld Complex, platinum-group minerals, troilite, isoferroplatinum, Pt-Fe-alloy, desulfurization...in South Africa’s world famous Bushveld Igneous Complex averages at normal mining thickness (∼90 cm) 5 |  | | Journal (article/letter/editorial) | | AND MINERALIZATION IN THE J–M REEF, STILLWATER COMPLEX, MONTANA JOSEPH S. POLOVINA 1254 Wonder Court...the J–M Reef and its footwall in the Stillwater Complex, Montana. We used optical microscopy, scanning...petrography, geochemistry, layered intrusion, Stillwater Complex, Montana. SOMMAIRE Nous avons établi la minéralogie...J–M et les roches du socle du complexe de Stillwater, au Montana. A cette fin, nous avons utilisé la microscopie...complexe de Stillwater, Montana. INTRODUCTION The Stillwater Complex in south-central Montana is the host |  | | Journal (article/letter/editorial) | | Platinum-GroupMinerals in Chromite Seamsof the Stillwater Complex, Montana RAYMOND W. TALKINGTON GeologyDepartment-NAMS...massivechromite,in the ultramaficzone of the Stillwater Complex.They are small,generallylessthan 20 •t...occasional occurrences of cumulus THE Stillwater Complex, Montana, is an Archcan (•2,700 m.y.)layeredi...givenpartof the zoneof the StillwaterComplex. complex,8 to 21 cyclicunitsmaybe found.The chroSamplingand... •uoz ag•m•r•ll'l PGMIN CHROMITESEAMS, STILLWATER COMPLEX View, West Fork, and Benbow areas(seeFig |  | | Journal (article/letter/editorial) | | 1352-1363 PlatinumMetalsin theStillwaterComplex, Montana NOUA J PAGE,J. J. ROWE,ANDJOSEPH HAFFTY Abstract...zonesof the stratiform mafic and ultramafic Stillwater Complex, southwesternMontana. Reported values range...complex.The presenceof platinum-iron alloy, isoferroplatinum,platinian rhodium, rhodian platinum, palladian...Introduction and Geologic Setting of the Stillwater Complex composedo[ olivine, ,chromite, olivine+...olivine+ bronzite, and ThE Stillwater Complex,a large tabular massof internallyconformable layeredmaficand ultramafic |  | Johan, Z., Ohnenstetter, M., Slansky, E., Barron, L. M., Suppel, D. (1989) Platinum mineralization in the Alaskan-type intrusive complexes near Fifield, New South Wales, Australia part 1. platinum-group minerals in clinopyroxenites of the Kelvin Grove prospect, owendale intrusion. Mineralogy and Petrology, 40 (4) 289-309 doi:10.1007/bf01164604 | Journal (article/letter/editorial) | | following PGM were identified: erlichmanite, isoferroplatinum, tetraferroplatinum, cooperite, cuprorhodsite...cooperite and locally remobilize the PGE stock. Isoferroplatinum appears as a reaction product during this...the most oxidized pyroxenites of the Owendale Complex. Zusammenfassung Platin- Vererzung in intrusiven...Folgende PGM wurden bestimmt: Erlichmanit, Isoferroplatinum, Tetraferroplatinum, Cooperit, Cuprorhodsit...from just south of Fifield (Murga Complex) through to the Tout Complex north of Fifield. In 1968, an airborne |  | 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. 226-245 doi:10.1016/j.gca.2017.07.041 | Journal (article/letter/editorial) | | Manuscript Multiple S isotope studies of the Stillwater Complex and country rocks; An assessment of the role... R.R., Multiple S isotope studies of the Stillwater Complex and country rocks; An assessment of the role...pertain. Multiple S isotope studies of the Stillwater Complex and country rocks; An assessment of the role... 1 Abstract- The J-M Reef in the Stillwater Complex of Montana is the highest grade Pd deposit in the...values for rocks from the Basal Series of the Complex range from -0.9 to 3.0 ‰ and 0.01 to 0.18 ‰, respectively; |  | | Journal (article/letter/editorial) | | as in the complex distribution of PGE, Au, and Ag mineral assemblages. New types of complex Pt and Pd...the first phase of the multiphase Monchegorsk Complex. These intrusions had attracted attention for a...Moreno et al., 1999; Oberthür et al., 2002, 2004). Complex PGE oxides were described for the first time from...remains whether PGE–Cu– Fe complex oxides are chemical compounds or complex nanoaggregates of several...Early Proterozoic gabbro–labradorite intrusive complex of Monche–Chuna–Volch’i and Losevy tun- dras (Main |  | | Report (issue) | | Isoferroplatinum Pt3 Fe c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Cubic. Point Group:...Rivers. In the Stillwater complex, Montana, and at Fox Gulch, Goodnews Bay, Alaska, USA. From the Department...and Tweefontein pipes, Merensky Reef, Bushveld complex, Transvaal, South Africa. On the Riam Kanan River |  | 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. 58-66 doi:10.1016/j.chemgeo.2018.05.023 | Journal (article/letter/editorial) | | pyrite above and below the J-M Reef, Stillwater Complex, Montana B.W. Wernette, E.M. Ripley, C. Li, R...pyrite above and below the J-M Reef, Stillwater Complex, Montana. The address for the corresponding author...Pyrite Above and Below the J-M Reef, Stillwater Complex, Montana IP T Wernette, B.W.1†, Ripley, E.M...Indiana University, Bloomington, Indiana 47405, USA US † – current address: Division of Earth and Ocean...Carolina 27708, USA AC CE PT ED M AN Keywords: Sulfur isotopes, Stillwater Complex, J-M Reef, secondary |  | | Journal (article/letter/editorial) | | was submittedfor incorporationin characterof the complex,with but local variations this issue. It should...at the Parksconcludes the seriesof papersonthe Stillwater sametime as the rocksand proposea model, based...The followingpaper,by Garuti and the Bushveld Complex,appearsto havemanysimi- Rinaldi,providesadditionaldataonthe...platinum-richsulfidehorizonsin the Bushveld and Stillwater Complexes:Jour. Petrology,v. 24, p. 133160. ...The J-M platinum-palladiumreef of the Stillwater Complex, Montana: II. Origin by double-diffusiveconvectivemagmamixing |  | | Journal (article/letter/editorial) | | vysotskite and keithconnite from the Freetown Layered Complex, Sierra Leone J. F. W. Bowles Mineral Science Ltd...has the composition Pt3Fe and is probably isoferroplatinum. Platelets of osmium-iridium alloy, crystals...vysotskite and keithconnite from the Freetown Layered Complex 77 parallel to {0001}. Some cubes of platinum-iron...vysotskite and keithconnite ± from the Freetown Complex. Inclusions in the platinum-iron alloy Of 62 nuggets...also shows an analysis of the type material from Stillwater (Cabri et al., 1979) which has a distinct tin |  | | Report (issue) | | England Moscow, Russia London, Ontario Butte, Montana Modena, Italy Cape Town, Republic of South Africa...and offset environments of the Sudbury Igneous Complex have made PGE the focus of new exploration in this...(Ontario), the Marathon deposit in the Coldwell Complex (Ontario), and the formerly producing Salt Chuck...gabbros, cover another aspect of the Coldwell Complex mineralization. The mineralization they describe...Bird River Belt. The PGE deposits in the Bushveld Complex (South Africa) are the subject of two papers. In |  | | Journal (article/letter/editorial) | | and the Orange Free State, from the Stillwater Complex, Montana, and from tha old Mooihoek platinum deposit...structure and with Fe between 20 and 5O at.Vo. c) Isoferroplatinum is defined as a new species with a primitive...of the Late Triassic Tulameen zoned ultramafic complex. The mineralogy of some of the thirteen platinum-group...minerals from the Precambrian stratiforn Stillwatq Complex (Cabri & Laflamme 1974) are consideredto be primary...Back-scattered electron image of a grain of isoferroplatinum (white) containing inclusions of michenerite |  | | Journal (article/letter/editorial) | | 3 (?) (Fig. 4C), similarly alloys such as isoferroplatinum (PtaFe) and hongshiite (PtCu) and Sn and Pb-bearing...gCuo.1)uAs2Sb2 Stibiopalladinite P&Sbl.sAso.4 Isoferroplatinum PtaFe Gold-electrum (Au,Ag) *** major **...Palarstanide Zvyagintsevite Unnamed Hongshiite Isoferroplatinum Unnamed (Ruo.73Oso.22Iro.os)S2 (Pdo.TPto...data from Naldrett and Cabri, 1976), and the Stillwater J-M Reef (J-M, data from Naldrett, 1981). I ...formation of the Sompuj/irvi Reef was an extremely complex event, the elucidation of which is considerably |  | | Journal (article/letter/editorial) | | minerals as large euhedral crystals, grains with complex morphology, and zonal aggregates (Fig. 3a). Zoning... Au–Ag–Pd alloys, atokite, palarstanide, isoferroplatinum, niggli ite, and other PGM crystallized after...vol % LLU ULU PGM Au, Ag, and Pdalloys Isoferroplatinum (Pt,Pd)3Fe Hongshiite (Pt,Pd)Cu Palladium...Pt5Te7 and Pd2 – xTe. vy, vysotskite; pt, isoferroplatinum; am, amphibole; small light myrmekitelike...(especially kotulskite) in secondary silicates. Complex aggregates are typical of arsenides and tellu |  | Slansky, E., Barron, L. M., Suppel, D., Johan, Z., Ohnenstetter, M. (1991) Platinum mineralization in the Alaskan-type intrusive complexes near Fifield, N.S.W., Australia. Part 2. Platinum-group minerals in placer deposits at Fifield. Mineralogy and Petrology, 43 (3) 161-180 doi:10.1007/bf01166889 | Journal (article/letter/editorial) | | PGM association was observed in the nuggets: isoferroplatinum, native osmium, osmiridium, iridosmine, laurite...laurite and bowieite. Isoferroplatinum is the matrix mineral in the nuggets, while (Ir, Os, Pt) alloys...embedded as trapped early formed crystals in isoferroplatinum. This PGM association is entirely different...the mineral species and to the chemistry of isoferroplatinum common to both occurrences. This proves conclusively...of iridosmine and osmiridium exsolutions in isoferroplatinum proves a high temperature origin for the nuggets |  | Simakin, Alexander, Salova, Tamara, Borisova, Anastassia Y., Pokrovski, Gleb S., Shaposhnikova, Olga, Tyutyunnik, Oksana, Bondarenko, Galina, Nekrasov, Alexey, Isaenko, Sergey I. (2021) Experimental Study of Pt Solubility in the CO-CO2 Fluid at Low fO2 and Subsolidus Conditions of the Ultramafic-Mafic Intrusions. Minerals, 11 (2) 225 doi:10.3390/min11020225 | Journal (article/letter/editorial) | | mafic-ultramafic intrusion; carbonic fluid; isoferroplatinum; platinum carbonyl Copyright: © 2021 by the...equilibrates at lower temperature. In a Stillwater complex (MT, USA), assemblage of graphite-calcite-forsterite-antigorite...magnetite in the ultramafic pegmatites of the Bushveld complex was described to be equilibrated at T = 500–600...zoned pegmatite body in the Gabbronorite of Stillwater Complex. Konnikov and Vasyukova [7] observed fluid...to 7 cm3 /kg) in the mineralized reefs of the Stillwater type [8]. An appreciable CO content (up to 2 |  | | Journal (article/letter/editorial) | | known in outline. At high Fe compositions, isoferroplatinum is ferromagnetic at temperatures above room...examine iron-rich isoferroplatinum in the same way to distinguish isoferroplatinum formed at room temperature...later discussion but which omits details for isoferroplatinum. Massalski (1986) includes a full phase diagram...Cu V \/ / D V / [ tulame / iPtaFe \ isoferroplatinum \ \ ./ ,/(Fe,Cu, Pt) (fcc) VPtCu \/ ...Pt3Fe from the Stillwater Intrusion (Cabri and Laflamme, 1974, 1981). 8 Isoferroplatinum from the Witwatersrand |  | | Journal (article/letter/editorial) | | STRINGERS IN THE MERENSKY REEF OF THE EASTERN BUSHVELD COMPLEX, SOUTH AFRICA Derek ROSE, Fanus VILJOEN§, Mike...the Merensky Reef in this area of the Bushveld Complex are pyrrhotite (46% of all BMS), pentlandite (32%...are dominated by maslovite (PtBiTe, 29.7%), isoferroplatinum (Pt3Fe, 26.9%), braggite [(Pt,Pd,Ni)S, 13...mineral liberation analyzer, Merensky Reef, Bushveld Complex, South Africa. Sommaire Nous avons étudié les...occupée), on trouve maslovite (PtBiTe, 29.7%), isoferroplatinum (Pt3Fe, 26.9%), braggite [(Pt,Pd,Ni)S, 13 |  | | Report (issue) | | and the Rustenburg Layered Suite of the Bushveld Complex (in North-West, Mpumalanga and Northern Provinces)...from the Rustenburg Layered Suite of the Bushveld Complex; the total number of type species of the platinum...by the number of type species from the Noril'sk Complex in Russia. Twenty (20) valid type species so far...from the Rustenburg Layered Suite of the Bushveld Complex. 1. INTRODUCTION 1.1 Nomenclature Usage A...Rustenburg Layered Suite of the Eastern Bushveld Complex. The type locality is the Merensky Reef (Winterveld |  | | Journal (article/letter/editorial) | | is located in the Lower Zone of the lmandrovsky complex. Platinum-group minerals (PGM) are associated with...and Lukkulaisvaara intrusions similar to the Stillwater and Bushveld complexes. The PGE mineralogy of...in/ihnlicher Weise beeinflul3t haben, wie dies im Stillwater und Bushveld-Komplex der Fall war. Die PGE-Mineralogie...chromite are laurite except for one grain of isoferroplatinum, intergrown with laurite. It is important...of platinum-group minerals from the Imandrovsky complex No. 1 2 Ru Rh Pd Os Ir Pt Fe Ni Cu As S 50 |
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