| | 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...resources are made for gold, silver, copper, molybdenum, iron, and phosphorous for four deposit types by combining...resources of chromium in deposits near Red Lodge, Montana, are based on detailed geologic investigations | | | Report (issue) | in Central Part Stillwater Complex, Sweet Grass County, Montana GEOLOGICAL SURVEY BULLETIN 1015-D...in Central Part Stillwater Complex, Sweet Grass County, Montana By A. L. ROWLAND A CONTRIBUTION TO ECONOMIC...River______________________ Iron Mountain area__________________________________________ Iron Mountain to West Fork...deposits. 10. Geologic map of the east slope of Iron Mountain. 11. Geologic map and sections of the chromite...IN THE CENTRAL PART OF THE STILLWATER COMPLEX, MONTANA BY A. L. HOWLAND ABSTRACT The chromite deposits | | | Report (volume) | Tectonic Structures of the Stillwater Complex Montana By W. R. JONES, J. W. PEOPLES, and A. L. ROWLAND...northeast dip-...-.---------------------------------. Iron Creek-Brownlee Creek fault._._________ South Prairie...________________________________________ _ 30. Branching chromitite layers on small scale___-__-___--__- 31. Dunite...Columnar sections of B chromitite zone.______________ 41. Section showing chromitite layers in poikilitic...vertical section showing interval between G and H chromitite zones..__________-_--_---____-__~_ 43. Irregularities | | | Report (issue) | Custer and Gallatin National Forests, South-Central Montana compiled by Bradley S. Van Gosen1 Open-File Report............ 37 VI. Jardine-Mineral Hill-Crevice Mountain mineral district ............ 39 VII. Emigrant...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...numerous mineral discoveries. Discovery of the Fisher Mountain, Miller Creek, and Homestake deposits between | | | Report (volume) | Sulfide Inclusions Within the B Chromitite, Stillwater Complex, Montana U.S. GEOLOGICAL SURVEY BULLETIN...Sulfide Inclusions Within the B Chromitite, Stillwater Complex, Montana By MICHAEL P. FOOSE and SUZANNE...Sulfide inclusions within the B chromitite of the Stillwater Complex, Montana, provide evidence for complex...Sulfide inclusions within the B chromitite, Stillwater Complex, Montana. (U.S. Geological Survey bulletin...Bibliography: p. 1. Sulfide minerals Montana. 2. Mineralogy Montana. SuzanneW. II. Title. III. Series. | | 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) | Complex, Minnesota, and the Stillwater Complex, Montana, are given separate status in this contribution...an update of the comprehensive bibliography in Montana Bureau of Mines and Geology Special Publication...Publication 92, entitled "The Stillwater Complex, Montana: Geology and Guide." The bibliography presented here...1115. Austin, G. S., 1961, Photogeology of Cook County, Minnesota: University of Minnesota, M.S. thesis...intermediate rock in the Duluth Gabbro of northern Cook County, Minnesota: Madison, University of Wisconsin, M | | | Report (issue) | of the Stillwater Complex and Associated Rocks, Montana Michael L. Zientek1 and Edward M. Ripley2 Open-File... ABSTRACT The Stillwater Complex, in south-central Montana, is a Late Archean layered, ultramafic to mafic...concentrated near the base of the intrusion, in some chromitite layers, in podiform pegmatoids, in discontinuous...metagraywacke and metashale (mean 2.8 per mil); 2) iron-formation, Stillwater-associated sills and dikes...assimilation of substantial amounts of sulfur from iron-formation could be an important mechanism for the | | | Report (issue) | Ultramafic and Mafic Rocks from the Stillwater Complex Montana Platinum, Palladium, and Rhodium Analyses of...Ultramafic and Mafic Rocks from the Stillwater Complex Montana By Norman J Page, Leonard B. Riley, and Joseph...Ultramafic and Mafic Rocks from the Stillwater Complex, Montana By Norman J Page, leonard B. Riley, and Joseph...are preferentially concentrated in chromitite zones. The A chromitite zone (21 samples) has an average...the minerals laurite, cooperite, and a platinum-iron alloy which are included within cumulus olivine | | | Journal (article/letter/editorial) | IsotopeStudiesof the Stillwater Complex and Associated Rocks, Montana MICHAEL L. ZIENTEK U.S. GeologicalSurvey,Spokane...concentrated near the base of the intrusion in some chromitite layers,podiformpegmatoids,discontinuous discordantpodsor...metagraywackes andmetashales (mean = 2.8%0);(2) iron-formation, Stillwater-associated sillsanddikes,...assimilation of substantial amounts of sulfurfrom iron-formationmay have occurred.The low tenor of the...Cu Introduction sulfideaccumulationsin the Iron Mountain area (the SULFURisotopestudiesof magmaticsulfidedeposits | | 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) | Isotope Geochemistry of the Stillwater Complex, Montana: Implications for the Petrogenesis of the J-M Reef...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...for the platinum group element (PGE)-enriched B chromitite seam from the West Fork area to a near-chondritic | | | Journal (article/letter/editorial) | Palladium,and Rhodiumin the StillwaterComplex,Montana* NORarAN J PAGE,LEONARD B. RILEY,ANDJOSEPH HAFFTY...Individual samplesfrom the Stillwater Complex, Montana, show a wide variation in contentand relative pr...thesemetals are preferentiallyconcentratedin chromitite zones. Values range from the limits of determinationup...platinum mineral phasesidentified, occur in the chromitite as discretegrains with an average diameter of...sampledescriptions, of the Beartooth Mountains, Montana, was divided and locations for 137 rock samplesare | | | Journal (article/letter/editorial) | 1352-1363 PlatinumMetalsin theStillwaterComplex, Montana NOUA J PAGE,J. J. ROWE,ANDJOSEPH HAFFTY Abstract...parentbasalticmagma(s) of the complex.The presenceof platinum-iron alloy, isoferroplatinum,platinian rhodium, rhodian...RhodiumContentsof Rocks from the Stillwater Complex, Montana Pt Sample no. Basal Pd Au ppb Ir ppb Ru ppb...Olivine cumulate A chromitite A chromitlte A chromitite B chromitite C chromitite 12WF68 8WF68 13WF68...14BE68 E chromitite 8BE68 G chromitite H chromitite I chromitite 18MV68 20MV68 6NB68 J chromitite K chromitite | | | Journal (article/letter/editorial) | the 1Montana College of Mineral Science, Butte, Montana, and the 2 Rockwell International Science Center...Pegrnatoid Pyroxenite of the Stillwater Complex, Montana, U.S.A. A. Volborth 1 and R. M. Housley2 With 14...in the Stillwater Layered Anorthosite Complex, Montana. The graphite occurs in a pegmatoid pyroxenite...pegmatoiden Pyroxenit des Stillwater-Komplexes, Montana: Ein vorla~tfigerBericht Wir beschreiben hier erstmals...geschichteten Anorthosit-Komplex yon Stillwater, Montana. Graphit tritt in einem pegmatoiden Pyroxenit-Stockwerk | | 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) | mineral assemblages in the Stillwater Complex, Montana, USA Hannah M. Aird 1,2 & Katherine M. Ferguson 1...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...igneous intrusions such as the Stillwater Complex, Montana, USA, and the Bushveld Complex, Republic of South...the northern edge of the Beartooth Mountains in Montana. The magma was emplaced at 2709 ± 1 Ma (Sm-Nd, | | | Report (volume) | TO WILDERNESS PRIMITIVE AREAS BEARTOOTH AREA, MONTANA AND WYOMING GEOLOGICAL SURVEY BULLETIN 1391-F ...Carbon, Park, Still water, and Sweet Grass Counties, Montana, and Park County, Wyoming. By FRANK S. SIMONS...Carbon, Park, Stillwater, and Sweet Grass Counties, Montana, and Park County, Wyoming. (Studies related...Bibliography: p. 114 1. Mines and mineral resources Montana. 2. Mines and mineral resources Wyoming Park Co...Carbon, Park, Stillwater, and Sweet Grass Counties, Mont., and Park County, Wyo., that may come under discussion | | | Report (issue) | Stillwater Complex, Montana: Rock Succession, Metamorphism, and Structure of the Complex and Adjacent...PROFESSIONAL PAPER 999 Stillwater Complex, Montana: Rock Succession, Metamorphism and Structure of...metaquartizite -------------------------------------Iron-formation--------------------------------------...Geometrical analysis of penetrative structures _____ _ Mountain View area -----------------------------------------------Area...Boulder River All structures exclusive of the Mountain View area ----------------------------------------Stillwater | | | Journal (article/letter/editorial) | carbonate minerals in the Stillwater Complex, Montana, USA Hannah M. Aird • Alan E. Boudreau Received:...temperature as high as 950 °C for the unmixed assemblages. Iron and manganese concentrations exceed the range seen...Ocean Sciences, Duke University, Durham, NC 27708, USA e-mail: hannah.aird@duke.edu them at a higher stratigraphic...and Wasserburg 1979), located in southcentral Montana. It is composed of three main sections (Fig. 1):...interlayered dunite, harzburgite, orthopyroxenite and chromitite overlain by a massive Bronzitite Zone; and a | | | Book (volume) | Graton-Sales Volume Other Volumes in the Rocky Mountain Fund Series CONFERENCE ON REVERBERATORY SMELTING...editor FIRST EDITION Sponsored by The Rocky Mountain Fund Volume I! Published by : : The American...68-24170. Contents Volume II 49, Iron Ore Deposits of the Iron Springs District, Southwestern Utah...District, Utah Hav T. Morris 2: Mountain City Copper Mine, Elko County, Nevada RoBERT R. Coats F. KERR...Nevada PAUL GEMMILL Se. Geology of the Spor Mountain Beryllium District, Utah DANIEL Part IX. ARIZONA | | | Report (issue) | Stillwater Complex, Montana Structure, Mineralogy, and Petrology of the Basal Zone with emphasis on the...Publication Data Page, Norman J Stillwater Complex, Montana Structure, Mineralogy, and Petrology of the Basal...Igneous. 2. Intrusions (Geology) Montana. 3. Sulphides. 4. Ore-deposits Montana. I. Title. II. Series: United...geologic history of the Stillwater Complex area, Montana .................................................Rocks in the Basal zone of the Stillwater Complex, Montana .............................................. | | | Journal (article/letter/editorial) | GROUP ELEMENT DEPOSIT IN THE STILLWATER COMPLEX, MONTANA (USA) Corey J. Wall†and James S. Scoates Pacific...V6T-1Z4, Canada Abstract The Stillwater Complex, Montana (USA), is one of the world’s largest layered intrusions...northern front of the Beartooth Mountains in Montana (USA) (Fig. 1). It has had a long history of mineral...intrusion, Mackie et al., 2009), intrusions with chromitite horizons (e.g., Bird River Sill, Scoates and... OB4 OB3 0 45°25' N H ! Stillwater Mine BB Iron Cre r il C ree k ST11-16 ek LM We st F ish | | | Book | Upper Critical Zone of the Bushveld Complex. Chromitite layers in anorthosite frequently bifurcate, but...but preserve a constant thickness of chromitite in vertical sections. Aspects of these and other features...show a progressive decrease upwards as well. Chromitite layers are present within the dunite subunit...of attention has been given to the origin of chromitite layers in layered intrusions. Since chromium...from it. The most common explanation for these chromitite layers is that a magma precipitating both olivine | | | Report (issue) | England Moscow, Russia London, Ontario Butte, Montana Modena, Italy Cape Town, Republic of South Africa...and solidification of the Stillwater Complex (Montana) are described and discussed by Zientek et al....CAWTHORN, R.G., 2002. Platinum-group minerals in chromitite xenoliths from the Onverwacht and Tweefontein...Element Mineralization in the Stillwater Complex, Montana M.L. Zientek, R.W. Cooper, S.R. Corson and E.P...with or without some type of “special fire assay” (iron, nickel, copper, and tin have been noted). Analyses | | | Book | Sciences, University of California Merced, Atwater, CA, USA Alan E. Boudreau Division of Earth and Ocean Sciences...and Earth Sciences, Duke University, Durham, NC, USA John W. M. Bush Department of Mathematics, Massachusetts...Massachusetts Institute of Technology, Cambridge, MA, USA R. Grant Cawthorn School of Geosciences, University...Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Geology, University of Liège, Sart...Illinois University at Carbondale, Carbondale, IL, USA Bélinda Godel CSIRO Mineral Resources Flagship, Kensington | | | Journal (issue) | foxbooks@att.net During my travels through Michigan’s iron and copper mining regions, I am always on the look-out...opportunities! As I drove into the parking lot at the Iron Mountain Iron Mine located in Vulcan, Michigan to experience...John” at the Iron Mountain Iron Mine. Author’s image. Within the city of Iron Mountain, Michigan, just...known as the wettest iron mine to be worked, due to the fact that the large iron ore deposits were located...Figure 2: Chapin Mine Miner: Iron Mountain, Michigan. Author’s image. Another iron mining town, Ironwood, | | | Journal (article/letter/editorial) | Mountainsof Montana. Verner Joness has recentlydescribed a deposit nearSheridan,Montana, •whichabpears...Jones,Verner: Chromite Deposits near Sheridan, Montana. Ecos. G•-or..,vol. 26, pp. 625-629, x93•. s...to serpentine, in upper right. Nodule of the chromitite which forths the chrome ore. Rhodesia. /N(48... V•IRIETIES OF CHROMITE DEPOSITS. 837 Lodge, Montana (Figs. 4 and 5); and the Old Dominion pit, Thetford...constituentin the replacementand vein deposits important for iron and copper sulphidesin the Southern Appalachians |
|