 | Christopher Jenkins, M., Mungall, James E., Zientek, Michael L., Holick, Paul, Butak, Kevin (2020) The Nature and Composition of the J-M Reef, Stillwater Complex, Montana, USA. Economic Geology, 115 (8). 1799-1826 doi:10.5382/econgeo.4777 | Journal (article/letter/editorial) | | Nature and Composition of the J-M Reef, Stillwater Complex, Montana, USA M. Christopher Jenkins,1,2,† James...Washington 99201, USA 3Stillwater Mine, Sibanye-Stillwater, 2562 Nye Rd., Nye, Montana 59061, USA Abstract...Abstract In this contribution, we analyze 30 years of mine development data and quantitatively identify the processes...mineralization in the J-M reef horizon of the Stillwater Complex along the strike and down the dip of...area of the Stillwater mine. We compare these results with data from the East Boulder mine and whole-rock |  | Czamanske, Gerald K., Bennett, Pauline C., Zientek, Michael L., Weiblen, Paul W., Havach, George A., Foose, Michael P. (1986) Comprehensive bibliographies on mineralized and unmineralized layer mafic intrusions in the United States. Open-File Report Vol. 1986 (86-589) US Geological Survey doi:10.3133/ofr86589a | Report (issue) | | or cobalt or platinum or pentlandite mineralization or ore deposit or dissemination or mine ultramafic... The Duluth Complex, Minnesota, and the Stillwater Complex, Montana, are given separate status in this contribution...bibliography on the Stillwater Complex is an update of the comprehensive bibliography in Montana Bureau of Mines...Special Publication 92, entitled "The Stillwater Complex, Montana: Geology and Guide." The bibliography...1986. All citations in the bibliography on the Stillwater Complex have been carefully checked for accuracy |  | | Report (issue) | | Custer and Gallatin National Forests, South-Central Montana compiled by Bradley S. Van Gosen1 Open-File Report...references ...................................... 5 I. Stillwater Complex .......................................Absaroka-Beartooth study area in south-central Montana ... 4 INTRODUCTION This bibliography lists more...Mountains and Absaroka Range in south-central Montana. It was compiled during an evaluation of the mineral...ABSA, The 12 categories are: I. Stillwater Complex. The Stillwater Complex (fig. 1) is a geologically |  | 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...Keays, R.R., Multiple S isotope studies of the Stillwater Complex and country rocks; An assessment of the...pertain. Multiple S isotope studies of the Stillwater Complex and country rocks; An assessment of the... 1 Abstract- The J-M Reef in the Stillwater Complex of Montana is the highest grade Pd deposit in the...The ~ 2.7 Ga Stillwater Complex, located in the Beartooth Mountains in southwestern Montana, contains the |  | | Journal (article/letter/editorial) | | June 2016, Vol. 80(4), pp. 585–637 The Stillwater Complex, Montana – Overview and the significance of volatiles...Sciences, Duke University, Box 90227, Durham, NC 27708, USA [Received 31 May 2015; Accepted 19 November 2015;...ACT The geology of the 2.7 Ga Stillwater Complex in South-Central Montana is reviewed with a focus on the...involved in the crystallization of the Stillwater Complex. A dry Stillwater magma would have been mineralogically...in high-grade platinum-group element and chromium deposits. K E Y WO R D S : Stillwater Complex, layered |  | | Report (issue) | | study area, Custer and Gallatin National Forests, Montana Edited by JANE M. HAMMARSTROM1, MICHAEL L. ZIENTEK2...Study Area, Custer and Gallatin National Forests, Montana U.S. Geological Survey Open-File Report 93-207...700 km2) of National Forest land in southwestern Montana adjacent to the northern part of Yellowstone National...all of the identified resources of platinum-group elements (platinum, palladium, rhodium, ruthenium, osmium...chromium, and platinum-group elements. Mines in production in 1992 are the Stillwater mine (platinum, palladium |  | | Journal (article/letter/editorial) | | ANALYSIS AND COMPOSITION OF PLATINUM-GROUP MINERALS IN THE J-M REEF, STILLWATER COMPLEX BÉLINDA GODEL,† Centre...samples from the platinum-group element (PGE)–bearing J-M reef, Stillwater Complex (Montana). The aims of...sulfides, silicates, and secondary magnetites. The platinum-group minerals (PGM) observed in the studied samples...Bushveld Complex (South Africa) and the Stillwater Complex (Montana) contain stratiform layers, or “reefs...are enriched in platinum-group elements (PGE). In both the Bushveld and the Stillwater Complexes, the |  | | Journal (article/letter/editorial) | | Pt–Pd SULFIDE IN THE J–M REEF OF THE STILLWATER COMPLEX, MONTANA Chusi LI and Edward M. RIPLEY Department... Indiana 47401, USA Abstract Pt–Fe alloy (Pt3Fe) in the J–M Reef of the Stillwater Complex, as exposed...exposed in the Stillwater mine, in Montana, occurs intergrown with secondary Fe–Ni–Cu sulfide; together,...only a minor amount of alteration (<5 vol.%) at the mine, whereas the discrete grains of the Pt–Fe alloy...samples (>20 vol.%) from the J–M Reef at the Stillwater mine and elsewhere along the strike of the reef |  | LAMBERT, D. D., WALKER, R. J., MORGAN, J. W., SHIREY, S. B., CARLSON, R. W., ZIENTEK, M. L., LIPIN, B. R., KOSKI, M. S., COOPER, R. L. (1994) Re--Os and Sm--Nd Isotope Geochemistry of the Stillwater Complex, Montana: Implications for the Petrogenesis of the J-M Reef. Journal of Petrology, 35 (6) 1717-1753 doi:10.1093/petrology/35.6.1717 | Journal (article/letter/editorial) | | and Sm-Nd Isotope Geochemistry of the Stillwater Complex, Montana: Implications for the Petrogenesis of...Park, Maryland 20742, USA 3 US Geological Survey, Reston, Virginia 22092, USA Department of Terrestrial...Washington, DC 20015, USA 5 US Geological Survey, Spokane, Washington 99201, USA 6 Stillwater Mining Company... Nye, Montana 59061, USA 1 Department of Geology, Lamar University, Beaumont, Texas 77710, USA (Received...mafic and ultramafic cumulates from the 2700-Ma Stillwater Complex and associated fine-grained sills and |  | 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...North Carolina 27708, USA AC CE PT ED M AN Keywords: Sulfur isotopes, Stillwater Complex, J-M Reef |  | | Journal (article/letter/editorial) | | OF THE J-M REEF PLATINUM GROUP ELEMENT DEPOSIT IN THE STILLWATER COMPLEX, MONTANA (USA) Corey J. Wall†... BC V6T-1Z4, Canada Abstract The Stillwater Complex, Montana (USA), is one of the world’s largest layered...hosts the JohnsManville (J-M) Reef, a world-class platinum group element (PGE) deposit. In this study, zircon...high-precision crystallization ages for the reef and the Stillwater Complex. All samples are coarse grained to pegmatitic...Frog Pond adit (2709.11 ± 0.56 Ma), East Boulder mine (2709.28 ± 0.32 Ma), and West Fork area (2709.00 |  | | Journal (article/letter/editorial) | | layered intrusions may contain layers enriched in platinum-group elements (PGE). In many cases, the PGE are...Africa) or the Stillwater Complex (Montana, USA) contain layers enriched in platinum-group elements (PGE)...crystallize directly from the magma in the form of platinum-group minerals (PGM) that accumulate on the crystal...Complex, South Africa) and the J-M Reef (Stillwater Complex, USA) and their Relationship to Microstructures...Reef and was collected underground at Rustenburg Platinum Mines (Fig. 1a), in the southwestern portion of |  | | Report (issue) | | 624 Platinum, Palladium, and Rhodium Analyses of Ultramafic and Mafic Rocks from the Stillwater Complex...Complex Montana Platinum, Palladium, and Rhodium Analyses of Ultramafic and Mafic Rocks from the Stillwater...Stillwater Complex Montana By Norman J Page, Leonard B. Riley, and Joseph Haffty G E0 L0 G I C A L 5 U...Page Figure 1. Platinum, palladium, and rhodium ratios for each specimen from the Stillwater Complex, ~o...terminology used for the Stillwater Complex, ~ont--------------------2. Platinum, palladium, and rhodium |  | | Journal (article/letter/editorial) | | com/locate/chemgeo Platinum-group elements in sulfide minerals and the whole rocks of the J-M Reef (Stillwater Complex):...Accepted 10 May 2007 Abstract The concentration of platinum-group elements (PGE), Co, Ni, Cu, Re, Au and Ag...Reef (footwall, reef and hanging wall) of the Stillwater Complex (U.S.A.). The aims of the study were...In contrast, Pt is almost exclusively found as platinum-group minerals and do not partition in any BMS...2007 Elsevier B.V. All rights reserved. Keywords: Platinum-group elements; Sulfide; Laser ablation ICP-MS; |  | | 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...recrystallized BMS aggregates and remobilized sulfides and platinum-group elements (PGE). The alteration assemblage...thickness of the J–M Reef. Keywords: J–M Reef, platinum, palladium, alteration, hydrothermal. Cl-rich...petrography, geochemistry, layered intrusion, Stillwater Complex, Montana. SOMMAIRE Nous avons établi la minéralogie |  | Aird, Hannah M., Ferguson, Katherine M., Lehrer, Malia L., Boudreau, Alan E. (2017) A study of the trace sulfide mineral assemblages in the Stillwater Complex, Montana, USA. Mineralium Deposita, 52 (3) 361-382 doi:10.1007/s00126-016-0664-x | Journal (article/letter/editorial) | | sulfide mineral assemblages in the Stillwater Complex, Montana, USA Hannah M. Aird 1,2 & Katherine M....2016 Abstract The sulfide assemblages of the Stillwater Complex away from the well-studied ore zones...Ocean Sciences, Duke University, Durham, NC 27708, USA 2 Department of Geological and Environmental Sciences...California State University Chico, Chico, CA 95929, USA Ni in the Peridotite Zone is largely controlled...metals by vapor refining, eventually producing a platinum group element-enriched sulfide ore zone, such |  | Barnes, Sarah-Jane, Pagé, P., Prichard, H. M., Zientek, M. L., Fisher, P. C. (2016) Chalcophile and platinum-group element distribution in the Ultramafic series of the Stillwater Complex, MT, USA—implications for processes enriching chromite layers in Os, Ir, Ru, and Rh. Mineralium Deposita, 51 (1) 25-47 doi:10.1007/s00126-015-0587-y | Journal (article/letter/editorial) | | Chalcophile and platinum-group element distribution in the Ultramafic series of the Stillwater Complex, MT...MT, USA—implications for processes enriching chromite layers in Os, Ir, Ru, and Rh Sarah-Jane Barnes 1...of the rocks from the Ultramafic series of the Stillwater Complex are enriched in PGE relative to most...how the enrichment occurred in the case of the Stillwater Complex and applied our results to the chromite...Geological Survey, Spokane Office, Spokane, WA, USA whole rock and magnetite rims around the sulfides |  | | Report (issue) | | version 1 Crystal Data: Hexagonal. Point Group: 3. platinum-group element nuggets. As grains, to 220 µm,...296(12) Z=3 X-ray Powder Pattern: Stillwater complex, Montana, USA. 2.26 (100), 2.16 (90), 0.791 (40)...29.56 100.4 101.51 100.00 (1) Stillwater complex, Montana, USA; by electron microprobe, corresponding.... Occurrence: their placers. Rare with other platinum-group minerals in layered ultrabasic complexes...magnetite (Stillwater complex, Montana, USA). Distribution: From the Stillwater complex, Montana, USA [TL] |  | | Report (issue) | | INTERIOR GEOLOGICAL SURVEY OPPORTUNITIES FOR A PLATINUM-GROUP-ELEMENT RESOURCE APPRAISAL OF THE UNITED...California Reston, Virginia OPPORTUNITIES FOR A PLATINUM-GROUP ELEMENT RESOURCE ASSESSMENT OF THE UNITED...(USGS) that would conduct an assessment of the platinum-group element (PGE) resources of the United States...in our understanding of the geochemistry of the platinum-group elements and the many environments in which...or association are similar to areas that host platinum-group metals either as the major or by-product |  | | Journal (article/letter/editorial) | | J-M Reef and Associated Rocks of the Stillwater Complex, Montana ALAN BOUDREAU∗ DEPARTMENT OF GEOLOGY...GEOLOGY, DUKE UNIVERSITY, BOX 90227, DURHAM, NC 27708, USA RECEIVED MAY 5, 1998; REVISED TYPESCRIPT ACCEPTED...crystallized rock of the Anorthosite subzone. The main platinum-group element sulfide concentrations occur at...principal platinumgroup element deposit of the Stillwater complex, the J-M reef. OB I is characterized...crystallized layered igneous intrusions such as the Stillwater complex have traditionally been considered to |  | | Journal (article/letter/editorial) | | formation of platinum-group-element reef deposits: examples from the Bushveld and Stillwater Complexes Eduardo...formation of platinum-group-element reef deposits: examples from the Bushveld and Stillwater Complexes,...formation of platinum-group-element reef deposits: examples from the Bushveld and Stillwater Complexes... G7H 2B1, Canada Abstract The distribution of platinum-group element (PGE) and Te, As, Bi, Sb and Sn...pyrrhotite and chalcopyrite from the Bushveld and Stillwater Complexes are reported. The samples are from: |  | Schisa, Paul, Boudreau, Alan, Djon, Lionnel, Tchalikian, Arnaud, Corkery, John (2015) The Lac Des Iles Palladium Deposit, Ontario, Canada. Part II. Halogen variations in apatite. Mineralium Deposita, 50 (3) 339-355 doi:10.1007/s00126-014-0541-4 | Journal (article/letter/editorial) | | Heidelberg 2014 Abstract Analysis of apatite from the Mine Block Intrusion (MBI) of the Lac des Iles Igneous... Keywords Apatite . Lac des Iles Pd Deposit . Platinum-group elements Editorial handling: C. Li and...Sciences, Duke University, Box 90227, Durham, NC 27708, USA e-mail: boudreau@duke.edu L. Djon : A. Tchalikian...Thunder Bay, ON P7B 2R2, Canada Introduction The Mine Block Intrusion (MBI) of the Lac des Iles Igneous...indicator of those intrusions that may host high-grade platinum-group element (PGE) deposits and to explore the |  | | Journal (article/letter/editorial) | | Article Carbon Mineralization with North American PGM Mine Tailings—Characterization and Reactivity Analysis...J. Carbon Mineralization with North American PGM Mine Tailings— Characterization and Reactivity Department...Worcester Polytechnical Institute, Worcester, MA 01609, USA CarbMinLab, Department of Earth, Ocean, and Atmospheric...University of Pennsylvania, Philadelphia, PA 19104, USA; jlwilcox@seas.upenn.edu Correspondence: cmwoodall@wpi...tailings (i.e., wastes) from the mining of nickel and platinum group metals (PGMs). Through carbon mineralization |  | | Report (issue) | | Platinum-Group Elements Chapter N of Critical Mineral Resources of the United States—Economic and Environmental...9 rhenium 186.2 osmium 190.2 iridium 192.2 platinum 195.1 gold 197.0 mercury 200.5 thallium 204...gov/images/periodictable.pdf. Cover. Stillwater Mine in south-central Montana, looking southeast. The pond is...offices. Photograph by Michael L. Zientek, 2006. Platinum-Group Elements By Michael L. Zientek, Patricia...H.L., Schulte, R.F., and Seal, R.R., II, 2017, Platinum-group elements, chap. N of Schulz, K.J., DeYoung |  | | Report (issue) | | Beaverhead and Madison Counties, southwestern Montana. These agencies use mineral resource data in creating...part of Beaverhead County, Montana, and the western part of Madison County, Montana. The study area (see...Pass south to the Montana-Idaho border; and (4) The southern boundary is the Montana-Idaho border (the...cobalt, gold, iron, titanium, vanadium, and (or) platinum-group elements (PGE). Copper, nickel, chromium...rocks in Montana, most notably from mines developed in the Stillwater Complex near Nye, Montana, in the |
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