 | | Report (issue) | | GEOLOGY OF THE CUYUNA DISTRICT, MINNESOTA: A PROGRESS REPORT UNIVERSITY OF MINNESOTA MINNESOTA GEOLOGICAL...DIRECTOR BULLETIN 36 The Geology of the Cuyuna District, Minnesota A PROGRESS REPORT BY FRANK F. GROUT...WOLFF, SR. MINNEAPOLIS· 1955 THE UNIVERSITY OF MINNESOTA PRESS PRINTED AT LUND PRESS, INC., MINNEAPOLIS...mines of the Cuyuna district in considerable detail. About 1940 a brief synopsis of Cuyuna geology was...the University of Minnesota. In 1941 Mr. Grout started active field work on the Cuyuna largely in connection |  | | Report (issue) | | BIBLIOGRAPHY OF MINNESOTA 1951-1980 GEOLOGY ves ai é Lita: ae i if “Pe va MINNESOTA GEOLOGICAL...DIRECTOR BULLETIN BIBLIOGRAPHY SURVEY 46 OF MINNESOTA GEOLOGY 1951-1980 COMPILED G.B. MOREY, NANCY...NANCY BY BALABAN, AND LYNN Gn UNIVERSITY OF MINNESOTA ST. PAUL e 1981 SWANSON ISSN 0076-9169 @...@ ISBN 0-934938-01-6 The University of Minnesota is committed to the policy that all persons shall have...bibliography brings Minnesota Geological Survey Bulletin 34, ‘‘Bibliography of Minnesota Geology,’’ by T |  | | Journal (article/letter/editorial) | | Variations across the Proterozoic Penokean Orogen, USA and Canada John P. Craddock, David H. Malone, Mark...Variations across the Proterozoic Penokean Orogen, USA and Canada, Precambrian Research (2018), doi: https://doi...Variations across the Proterozoic Penokean Orogen, USA and Canada John P. Craddock, Geology Department,... Macalester College, St. Paul, MN 55105 USA David H. Malone, Department of Geography-Geology, Illinois...Geosciences, Boise State University, Boise, ID 83725 USA Jennifer N. Gifford, The University of Mississippi |  | | Report (issue) | | of Geochemistry ' * Chapter W. Chemistry of the Iron-rich Sedimentary Rocks GEOLOGICAL SURVEY PROFESSIONAL...FLEISCHER, Technical Editor Chapter W. Chemistry of the Iron-rich Sedimentary Rocks By HAROLD L. JAMES GEOLOGICAL...PAPER 440-W Chemical composition and occurrence of iron-bearing minerals of sedimentary rocks, and composition...distribution, and geochemistry of ironstones and iron-formations UNITED STATES GOVERNMENT PRINTING OFFICE..._________ ___________________ Iron minerals of sedimentary rocks __ ______ Iron oxides __ _______________________ |  | | Journal (article/letter/editorial) | | Cambridge, MA 02139, USA z US Geological Survey, National Center, MS 954, Reston, VA 22092, USA Abstract. Boron...(Australia), and Ducktown (USA). Overall, the tourmalines display a wide range in &x1B values from - 2 2...ratios, 4) seawater entrainment, 5) temperature of formation, and 6) secular variations in seawater falB. The...are a sensitive function of pH, which lies in the range 4-9 for most natural waters. Because the trigonal...reservoirs are known in nature which show an extensive range in &~B values (Fig. 1). In seawater, boron is a |  | | Journal (volume) | | Economic Geology Volume 15 BANDED IRON FORMATION-RELATED HIGH-GRADE IRON ORE Editors S. Hagemann, C...Economic Geology, Vol. 15 Banded Iron Formation-Related High-Grade Iron Ore S. Hagemann, C. Rosière...Companhia Vale do Rio Doce (Vale) TIER 2 Kumba Iron Ore ASSMANG TIER 3 Centre for Exploration Targeting...Biographies vii Introduction: Banded Iron Formation-Related High-Grade Iron Ore Steffen Hagemann, Carlos...Origin of Banded Iron Formations Chapter 1: Origin and Paleoenvironmental Significance of Major Iron Formations |  | Snyder, George L., Hausel, W. Dan, Klein, Terry L., Houston, Robert S., Graff, Paul J. (1989) Precambrian Rocks and Mineralization, Southern Wyoming Province - Hartville Uplift to Copper Mountain Area, Wyoming July 19-25, 1989. Field Trip Guidebook T332. American Geophysical Union | Report (issue) | | Precambrian peridotite exposure in canyon wall on north side of North Fork Cherry Creek and on Tony Ridge, Bull...Southeast Wind River Range geologic summary (Hausel) Southeast Wind River Range stop descriptions (Hausel)...Belt, a shear zone at the southeast margin of the North American continental core, and visits various Proterozoic...trippers visit spinifex-textured komatiites, banded iron-formations, and various uranium and ~old prospects...the Wind River Range, including iron-formation formerly quarried at the Atlantic City mine. Return to Holiday |  | | Journal (article/letter/editorial) | | Manuscript Cryogenian iron formations in the glaciogenic Kingston Peak Formation, California Maxwell Alexander...Planavsky, Cryogenian iron formations in the glaciogenic Kingston Peak Formation, California, Precambrian...pertain. Cryogenian iron formations in the glaciogenic Kingston Peak Formation, California Maxwell Alexander...University, New Haven, CT 06520, USA ABSTRACT The Kingston Peak Formation records glacial sedimentation...Valley, California, and contains iron formation horizons. These iron formations are part of a thick sedimentary |  | | Report (chapter) | | Department, U Texas at Dallas, Richardson TX 75080-3021, USA 2 Johnson and Vranas Associates, Ltd., Geological...6016 SW Haines Street, Portland, Oregon 97219-7046, USA 3 Present address: Faculty of Earth Sciences, King...America Exploration & Production Company, Houston, TX, USA *Corresponding author (e-mail: rjstern@utdallas.edu)...relationships with younger and older units, banded iron formation chemostratigraphy, other characteristics...from continental margins. Deposits include banded iron formation (BIF) and possibly glacial diamictite scattered |  | | Journal (article/letter/editorial) | | unconformably sitting on Archean basement. # Fm., formation. Paleoproterozoic Paleoproterozoic 1.9–2.2...chert* Shales Black shales, cherts, and Fe-Mn formation* Organic-rich greywacke with pyrite and stromatolitic...bands, skarn rocks* lenses, and fine disseminations Iron formations with sulfides, carbonate, Fluorapatite...major deposits Sinpkhup, Singpung and Yongby areas, North Korea 1.90–2.08 Ga 1.98–2.06 Ga 1.90–2.06 Ga ...87 Ga Thomson Fm., Minnesota 1.72–1.85 Ga 1.80–1.87 Ga Age constraints North America Michigamme Fm |  | Parker, Ceth, Wolf, Julie, Auler, Augusto, Barton, Hazel, Senko, John (2013) Microbial Reducibility of Fe(III) Phases Associated with the Genesis of Iron Ore Caves in the Iron Quadrangle, Minas Gerais, Brazil. Minerals, 3 (4) 395-411 doi:10.3390/min3040395 | Journal (article/letter/editorial) | | Phases Associated with the Genesis of Iron Ore Caves in the Iron Quadrangle, Minas Gerais, Brazil Ceth... The University of Akron, Akron, OH 44325-3908, USA; E-Mails: cwp13@zips.uakron.edu (C.W.P.); bartonh@uakron... The University of Akron, Akron, OH 44325-4101, USA; E-Mail: jaw166@zips.uakron.edu Institute of Karst...November 2013 Abstract: The iron mining regions of Brazil contain thousands of “iron ore caves” (IOCs) that...provide a microbiological mechanism for their formation. We evaluated the susceptibility of Fe(III) deposits |  | | Journal (article/letter/editorial) | | at identical P-T conditions from a manganese formation in India yields Gt WMg_M, ( = WM,-Mg) value of...for extending its application to rocks of a wider range of bulk composition. Ellis and Green (1979) experimentally...essentially as an ideal solution. Ganguly and Kennedy (1974) suggested that the almandine-spessartine...in a granulite facies metamorphosed manganese formation where the authors estimated, through geological...considerably from those adopted by Ganguly and Kennedy (1974) and Dahl (1980) which were also derived |  | | Journal (article/letter/editorial) | | downloaded articles • Our comprehensive search The Iron Isotope Fingerprints of Redox and Biogeochemical...concomitant decrease in the availability of reactive iron to support microbial Fe3+ reduction. The temporal...oxidation have been proposed to explain the large range in Fe isotope compositions observed in Archean sedimentary...large increases in Fe3+ /Fe2+ ratios and the formation of secondary silicate and oxide minerals that...significant Fe was mobilized. www.annualreviews.org • Iron Isotope Biogeochemical Cycling 459 ANRV341-EA36-15 |  | | Journal (article/letter/editorial) | | several new localities, including the Flambeau copper mine near Ladysmith (Rosemeyer 1999, the Vulcan Materials...Racine (Scovil 1994), the pegmatites of Florence County (Koehier 1989) and the Wausau area (Falster 1987)...zircon), particularly in the Wausau area of Marathon County (Falster 1987). Middle Proterozoic quartzites (1...found there (Merge 1996). One deposit, the Flambeau mine near Ladysmith, has already been mined. Other deposits...krennerite, dzahlindite, and kolbeckite. To the north a different early Proterozoic metasedimentary sequence |  | | Journal (issue) | | HONHOEELELEREAGEODOD lead mine catches eyes of industry » 18 demand causes concern in USA » 22 > 28 i: 30...which machines cost less. For example, an Indiana county keeps individual cost records on their six motor...314 years’ service), the records of an Arkansas county showed a saving of $2478.57 in parts and labor...Viburnum ground July 1961 8 No. 27 mine in Missouri lead mine in the bination of men, Montecatini’s...because of an efficient com- ideas potash oo mine in Sicily, the world’s newest potash producer |  | | Book | | ALBERT SEvicNy, AcTING Minister; MINES EUGENE Iron McConnett, Deputy MINISTER. BRANCH HAANEL,...I. w= DESCRIPTIONS OF PRINCIPAL OIE snag eT IRON OTTAWA GOVERNMENT 29217c PRINTING 1917 ORE:...DESCRIPTIONS OF THE PRINCIPAL IRON ORE MINES. British Columbia— Texada Island iron mines eVajjers) (eer ere...fale ‘> e166 Je (eter 6) 6, er 6 ue fe Prescott mine SUGter G6) wi 4\Fe)0\ Bilolses wiiel elie) eee)...og | ee Se ee Eo Se Cee CORUM SROIee eee Coehill mine aule nia sels hey 92 2 eniwi SEM SECT 2) See |  | | Journal (article/letter/editorial) | | Park, PA 16827, USA b Department of Geology and Geophysics, University of Minnesota, 310 Pillsbury Dr...Dr. SE, Minneapolis, MN 55455-0219, USA Received 18 June 2004; received in revised form 15 March 2005;...the establishment of an iron-rich deep ocean and the deposition of banded iron formations (BIF). Accordingly...reserved. Keywords: hydrothermal; banded iron formation; Precambrian; iron; sulfate 1. Introduction * Corresponding...considered a likely source of Fe for Precambrian iron formations [1]. However, modern vent compositions |  | | Report (chapter) | | Publications Online First A mineral system approach to iron ore in Archaean and Palaeoproterozoic BIF of Western...Newfoundland on July 17, 2014 A mineral system approach to iron ore in Archaean and Palaeoproterozoic BIF of Western...review paper examines banded iron formation-hosted higher-grade (.58 wt% Fe) iron ore types present in...Craton and the Hamersley Province. The principal iron ore deposits from both districts exhibit variation...critical elements involved in iron ore formation and preservation: (a) BIF iron fertility defined by stratigraphic |  | | Book (volume) | | knowledge of the Precambrian Greenlandic Shield. In North America, the Greenland province is usually considered...stratigraphic sequence for the approximate age range, 600 Myr—2,400 Myr. I hope that this work, already...bordered in the west by the Greenland Sea and in the north by the Polar Sea. In the south the desolate island...(NORDENSKIOLD, 1863) he gave the name “Hecla hooks formation” to the thick sequence of quartzites, shales and...Luncke, Norsk Polarinstitutt. to ‘“Hecla Hook Formation’’. A. K. OrviIn (in Horn and ORvin, 1928) introduced |  | | Report (issue) | | 8 10 12 13 14 Asbestos ore Lead ore, Balmat mine. N.Y. Chromite-chromium ore, Washington Zinc ore...ore, Friedensville, Pa. Banded iron-formation, Palmer, Mich. 6. Ribbon asbestos ore, Quebec, Canada 7.... Manganese ore, banded rhodochrosite 1. 2. 3. 4. 5. 8. Aluminum ore, bauxite, Georgia 9. Native copper...fluorite ore. Poncha Springs, Colo. 14. Tungsten ore, North Carolina Vanadium Resources in Titaniferous Magnetite...not yet discovered or not currently profitable to mine. The mining of mineral deposits, once discovered |  | | Journal (article/letter/editorial) | | Institute and State University, Blacksburg, VA 24061, USA b Department of Geology, University of Helsinki,...Maryland at College Park, College Park, MD 20742, USA Accepted 11 October 2002 Abstract The Archean Wyoming...margin of the Superior Craton. The Nash Fork Formation of the upper Snowy Pass Supergroup is significantly...epoch. Carbonates at the base of the Nash Fork Formation record remarkable 13Cenrichment, up to /28 (V-PDB)...Fork Formation have d13C values between /6 and /8. Carbonates from the upper Nash Fork Formation above |  | Huberty, J. M., Konishi, H., Heck, P. R., Fournelle, J. H., Valley, J. W., Xu, H. (2012) Silician magnetite from the Dales Gorge Member of the Brockman Iron Formation, Hamersley Group, Western Australia. American Mineralogist, 97 (1) 26-37 doi:10.2138/am.2012.3864 | Journal (article/letter/editorial) | | from the Dales Gorge Member of the Brockman Iron Formation, Hamersley Group, Western Australia Jason M...magnetite from banded iron formation (BIF) in the Dales Gorge Member of the Brockman Iron Formation, Hamersley...the BIF oxide precipitate was not chemically pure iron oxyhydroxide/oxide. Magnetite domains display textures...in this BIF. Silician magnetite is the dominant iron oxide in the Dales Gorge BIF and is present in many...Keywords: Magnetite, silician magnetite, banded iron formation, Dales Gorge, Hamersley, biosignature Introduction |  | | Journal (article/letter/editorial) | | (Holland, 2002) and temperature resulting in the formation of stably normal sedimentary basins over the world...last century in almost every continent, including North America, Fennoscandia, South Africa, Western Australia...450 W; South Dakota, USA Snowy Pass Group, Sierra Madre Mountains, Wyoming, USA 41 e41 300 N, 107...Mountains, Wyoming, USA 41 e41 300 N, 107 150 e106 150 W, Medicine Bow Mountains, Wyoming, USA 41 e41 300... Wyoming, USA Menominee and Iron RivereCrystal Falls Ranges, Amasa Uplift, WI and MI, USA 45 490 e46 |  | | Journal (article/letter/editorial) | | calderas are first order sites for VMS. The Hunter Mine and Normetal calderas, as well as the Blake River...belt displays a complex history of oceanic arc formation, evolution, collision and fragmentation with numerous...studies and detailed facies mapping, the Hunter Mine caldera is of the segmented, piecemeal variety,...principal stages of alteration related to VMS formation. An early silicification phase developed either...and chemical precipitation deposits (e.g. banded iron-formation) if detailed volcanosedimentary facies mapping |  | | Journal (article/letter/editorial) | | adjacent Meekatharra – Mt Magnet Greenstone Belt range in age from 2762 6 6 to 2716 6 4 Ma. The age of...and also from the Narryer Gneiss Terrane to the north and west, which is composed of older gneisses and...terrane consists of a series of northnortheast- to north-northwest-trending greenstone belts extensively...7–3.3 Ga Narryer Terrane (Myers 1993) and to the north is overlain by Proterozoic rocks of the Nabberu...the northern Murchison Terrane form northeast- to north-northeast- trending elongate belts extensively intruded |
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