 | | Report (issue) | | Mineral Resource Assessment of the Iron River 1 Ā° X 2Ā° Quadrangle, Michigan and Wisconsin Prepared in cooperation...cooperation with Geological Survey Division, Michigan Department of Natural Resources, and Wisconsin Geological... Mineral Resource Assessment of the Iron River 1 Ā° X 2Ā° Quadrangle, Michigan and Wisconsin By W. F. Cannon...in cooperation with Geological Survey Division, Michigan Department of Natural Resources, and Wisconsin...favorability for undiscovered mineral deposits in the Iron River 1Ā° X 2Ā° quadrangle 1983 United States Department |  | | Journal (article/letter/editorial) | | MARCH 1951 IRON FORMATION AND ASSOCIATED ROCKS IN THE IRON RIVER DISTRICT, MICHIGAN By HAROLD L. JAMES...JAMES ABSTRACT The iron formation of the Iron River district is part of a Precambrian sequence of strata...characterized by a high iron content and varied mineralogy. The iron formation, where unoxidized, consists...cent iron in the form of very finely disseminated pyrite. Graywacke overlies the iron formation with...consists of clastic grains in a matrix of siderite or iron-rich chlorite. Above the graywacke is a magnetic |  | | Journal (article/letter/editorial) | | Fārintcd in U.S.A. Genesis of Proterozoic iron-formation: Sulphur isotope evidence E. M. CAMERON Geological...sulphide-facies iron-formation have been sampled. They are associated with Proterozoic iron-formations that...sediments beneath the anoxic waters, while some iron and manganese was deposited on oxygenated shelves...ironformation. INTBODUCIāION THE GENESIS of the great banded iron-formations of the Precambrian have been debated...century. Of particular interest is the source of the iron and silica, with opinion dividing between volcanic |  | | Report (issue) | | and Ore Deposits of the Iron River-Crystal Falls District, Iron County Michigan GEOLOGICAL SURVEY PROFESSIONAL...of the Michigan Department of Conservation PAPER 570 Geology and Ore Deposits of the Iron River-Crystal...River-Crystal Falls District, Iron County Michigan By H. L. JAMES, C. E. BUTTON, F. J. PETTIJOHN, and K. L...cooperation with the Geological Survey Division of the Michigan Department of Conservation UNITED STATES GOVERNMENT...in the Brule River area ___________ Saunders Formation ______________________ Description. ___________________________ |  | | Journal (article/letter/editorial) | | ECONOMIC Voā¢,. XXXVIII JANUARY-FEBRUARY, HYDROTHERMAL IRON GEOLOGY REPLACEMENT ORE DEPOSITS SUPERIOR HUGH...followedby concentration and compactionof iron mineralspresentin the iron formationsso leached,the hypothesis...additional iron from deeper magmatic sourceshas been introducedand that replacementof brecciated iron carbonates...thedeepminesof the VermilionRangeof Minnesota andthoseof Michigan, notwithxA paperon the "Replacement HematiteDeposits...beenadequately dealt with in the literature. STEEP ROCK IRON ORES. As a startingpoint for our discussion, we |  | | Report (issue) | | subtidal-shelf deposition of Superior-type banded iron-formation . Richard W. Ojakangas Lower Proterozoic...Great Lakes region but also for providing inĀ¬ formation on the nature of early Proterozoic tectonics,...arranged geographically, from the upper peninsula of Michigan and adjacent Wisconsin, to north central Wisconsin...Precambrian rapakivi massif in north Wisconsin, USA: Precambrian Research, v. 7, p. 287-324. Blackwelder...early Proterozoic (Precambrian X) of northern Michigan [abs.]: Geological Society of America, AbĀ¬ stracts |  | | Book | | Mineralogy of Michigan by E. W. Heinrich updated and revised ā¢ by George W. Robinson M By E W~ Hellnr]ch...Museum Michigan Technological University Houghton, Michigan 49931 2004 Ā© MINERALOGY OF MICHIGAN 3 FOREWORD...FOREWORD Michigan has a long and varied geologic history that includes repeated episodes of volcanism...before the first Europeans set foot here. When Michigan became a state in 1837, one of the first actions...and we continue to learn more about them today. Michigan minerals helped to build the state and nation |  | | Journal (article/letter/editorial) | | 5251 Broad Branch Rd., N.W., Washington, DC 20015, USA b Department of Geology, University of Helsinki,...Maryland at College Park, College Park, MD 20742, USA Received 13 November 2005; received in revised form...Group in the Lake Superior area, USA and the Gordon Lake Formation of the correlative upper Huronian...Notably, thin carbonates of the basal Gordon Lake Formation and thick carbonate succession of the Kona Dolomite...and Saunders Formation) previously assumed to be equivalent to the Gordon Lake Formation and Kona Dolomite |  | | Journal (article/letter/editorial) | | Economic Vol. 68, 1973, pp. 934-959 Precambrian Iron-Formations of the United States * R. W. B^YLEĀ¾^m)...The thickest and most extensive Precambrian iron-formations of the United States are in the Lake...Superior region, in Minnesota, Wisconsin, and Michigan. Thinner units occur within the Precambrian cores...of Colorado, New Mexico, and Arizona. The major iron-formations in the Menominee, Marquette, Gogebic...2 b.y. Lithologic associationsand detailed iron-formation stratigraphy,however, differ greatly from one |  | | Report (issue) | | Lithology and geologic setting of Lower Proterozoic iron-formations in parts of northern Wisconsin by Carl...magnetic sedimentary units, mostly lean magnetic iron-formations, that can be traced for long distances...the first half of the 1900 f s in exploration for iron ores. Although no exploitable orebodies have been...that useful body of data. Interest in exploring for iron ore in the project area during 19101914 led to geologic...the maps for Wisconsin and the adjacent areas of Michigan as well as field notes, have been available and |  | | Journal (article/letter/editorial) | | equivalent Middle pre-Cambrian(Huronian) rocks Iron-formation shown in solid black Staurolite or equivalent...MENOMINEE GENERALIZED GEOLOGIC MAP OF NORTHERN MICHIGAN, SHOWING METAMORPHIC ZONES BULLETIN OF THE GEOLOGICAL...REGIONAL METAMORPHISM IN THE PRECAMBRIAN OF NORTHERN MICHIGAN BY HAROLD L. JAMES ABSTRACT Precambrian rocks...an area of about 7500 square miles in northern Michigan. Of this area, approximately 3300 square miles...the Huronian sedimentary rocks, especially in the iron formations and the graywackes and slates, and in |  | | Book | | PLATE TECTONIC REGIMES / W. G. Ernst GEOCHEMISTRY OF IRON / Henry Lepp Additional volumes in preparation...āāāA BENCHMARK @Ā® Books Series GEOCHEMISTRY OF IRON Edited by HENRY LEPP Macalester College ywden...Geochemistry of (Benchmark i. papers iron. in geology Iron--Addresses, QE516 FING 593-3 ISBN 0-470-52776-5...Permissions ACKNOWLEDGMENTS DEPARTMENT NESOTA OF IRON RANGE RESOURCES AND REHABILITATION OF THE STATE...SURVEYāThe Mineralogy and Geology of the Taconites and Iron Ores of the Mesabi Range, Minnesota Hematite-Limonite |  | | Report (issue) | | Geology of the Menominee Iron-Bearing District Dickinson County, Michigan and Florence and Marinette...Division, Michigan Department of Conservation PAPER 513 Geology of the Menominee Iron-Bearing District...District Dickinson County, Michigan and Florence and Marinette Counties, Wisconsin By R. W. BAYLEY, C...cooperation with the Geological Survey Division, Michigan Department of Conservation 'I UNITED STATES...characteristics _________________ _ Quinnesec Formation __________________ _ Previous investigations ______________ |  | | Book | | Superior Baylielda 2) FN Hurley MICHIGAN NORTHERN St. Croix Falls | Rhinelander bas Eau Claire...Some Basic Background 1 Plate Tectonics and the Formation of Continents Precambrian Wisconsin 6 Paleozoic...36 Proterozoic Sediments 38 Precambrian Banded Iron Formation Penokean Mountain Building Event 38 40...8: St. Croix FallsāPembine 91 U.S. 8/U.S. 141/U.S. 2: PembineāFlorence via Niagara and Iron Mountain 102...DodgevilleāTower Hill State Park Wisconsin 29: Chippewa FallsāThorp 164 161 Wisconsin 35, The Great River Road: |  | | Journal (article/letter/editorial) | | occurred within the first ~700 My since planet formation. Importantly, however, significant events capable...Global extinction events glaciations Demise of banded iron Great Oxidation Event Sulphate reducers Oldest... Collins et al. 2005), and this leads to the formation of a silicate vapour plume. The behaviour of the...2012). Because many spherule beds are enriched in iron-loving (siderophile) elements, it has also been...some layers have had a contribution to their formation from a vapourized asteroid, for example via the |  | | Report (issue) | | the Early Proterozoic Penokean Orogen, Northern Michigan U.S. GEOLOGICAL SURVEY BULLETIN 1904-K AVAILABILITY...the Early Proterozoic Penokean Orogen, Northern Michigan ByJ.S. KLASNER, R.W. OJAKANGAS, KJ. SCHULZ, and...the early Proterozoic Penokean orogen, northern Michigan / by J.S. Klasner ...[et al.]. p. cm. (U.S. Geological...deformation Michigan. 2. Geology, Stratigraphic Proterozoic. 3. Geology, Structural Michigan. I. Klasner...Structure of key areas K4 Falls River area K4 Little Mountain area K5 Taylor mine K8 Plumbago Creek K8 Komtie |  | | Book | | Developments in Precambrian Geology 6 IRON-FORMATION: FACTS AND PROBLEMS DEVELOPMENTS IN PRECAMBRIAN...MELāNIK Precambrian Banded Iron-formations. Physicochemical Conditions of Formation DEVELOPMENTS IN PRECAMBRIAN...PRECAMBRIAN GEOLOGY 6 IRON-FORMATION FACTS AND PROBLEMS Edited by A.F. TRENDALL Geological Survey,...c a t i o n Dai:, Main entry under title: Iron-formation, facts and problems. (Developments in Plāecmbrian...c) I n c l u d e s bibliograrhies ;rd index. 1. Iron ores. I. Trendall, A. F. (Alec FraEcis) 11. Morris |  | | Report (issue) | | Early Proterozoic Michigamme Formation and Goodrich Quartzite, Northern Michigan Regional Stratigraphic Implications...Early Proterozoic Michigamme Formation and Goodrich Quartzite, Northern Michigan Regional Stratigraphic Implications...Early Proterozoic Michigamme Formation and Goodrich Quartzite, northern Michigan: regional stratigraphic implications...Stratigraphic Proterozoic. 2. Geology Michigan. 3. Michigamme Formation (Mich. and Wis.). 4. Goodrich Quartzite...description, Michigamme Formation R4 Slate members R4 Bijiki Iron-formation Member R7 Drill hole descriptions |  | | Report (issue) | | Geology of Central Dickinson County Michigan GEOLOGICAL SURVEY PROFESSIONAL Prepared in cooperation...Division^ Michigan Department of Conservation PAPER 310 Geology of Central Dickinson County Michigan By...cooperation with the Geological Survey Division, Michigan Department of Conservation UNITED STATES GOVERNMENT...__ Hardwood gneiss ___________________________ Banded gray gneiss. ________________________ Gneissic...group_____________________________ Fern Creek formation ___________________ Sturgeon quartzite______________________ |  | Parnell, John, Mark, Darren F., Frei, Robert, Fallick, Anthony E., Ellam, Rob M. (2014) 40Ar/39Ar dating of exceptional concentration of metals by weathering of Precambrian rocks at the PrecambrianāCambrian boundary. Precambrian Research, 246. 54-63 doi:10.1016/j.precamres.2014.02.012 | Journal (article/letter/editorial) | | of granites and pegmatites, and metasedimentary iron formations (Dufļ¬n, 1989; Avigad et al., 2005). These...chemistry. Iron deposits were exposed on the surface in many parts of the world, including USA, Canada,...Sweden, Iran and West Africa. So much Precambrian iron ore was eroded during the transgression that the...(Murphy and Ohle, 1968; Hausel, 1989). Many of these iron deposits are gold-bearing, some are strongly phosphatic...copper in Wisconsin (May and Dinkowitz, 1996), Michigan (Bornhorst, 2002) and Quebec (Sinclair and Gasparrini |  | | Report (issue) | | region underlie parts of Minnesota, Wisconsin, and Michigan, very near the geographic center of the North...of geosynclinal affinity and includes the great iron-formations of the region. These rocks are bounded...of Minnesota, northern Wisconsin, and northern Michigan, very near the geographic center of the North...Minnesota (Morey, 1983a,b), and in Wisconsin and Michigan (Sims and Peterman, 1981, 1983; Sims and others...Stratified rocks of the Animikie basin-Includes the major iron-formations of the region (Age,:::::: 2,100-1,860 |  | | Report (issue) | | Test-Drilling The Penokean Orogeny in Minnesota and Upper Michigan A Comparison of Structural Geology U.S. GEOLOGICAL...MOREY The Penokean Orogeny in Minnesota and Upper Michigan A Comparison of Structural Geology By TIMOTHY...Morey. The Penokean orogeny in Minnesota and upper Michigan a comparison of structural geology / by Timothy... Plate tectonics. 5. Geology Michigan. 6. Geology, Structural Michigan. I. Morey, G.B. II. Hoist, Timothy...Timothy B. Penokean orogeny in Minnesota and upper Michigan a comparison of structural geology. 1991. III |  | | Journal (article/letter/editorial) | | petrologyof very-low-metamorphicgradeArchaeanbanded iron-formations,Weld Range,Western Australia MaRUN J...basicFe-rich lithologiesat Weld Range:(l) bandediron-formation containing minnesotaite, siderite, quarlz,magnetite...as laminated 2-30cm-thick bands within banded iron-formation, containing chamosite, stilpnomelane, siderite...reported from very-low-metamorphic grade Proterozoic iron-formations. In common with pubtshed greenalite analyses...320150"C at low pressure' Introduction Banded iron-formation is a widely distributed although relatively |  | | Journal (issue) | | M ontreal Mine! L L The Mineralogical Record MAYāJUNE 2020 ā¢ VOLUME 51 ā¢ NUMBER 3 ā¢ $25 & Wayne... Co / Munich, Germany Laguna Beach, California, USA tel: +1 949 494 5155 / info@kristalle.com The ...net MAYāJUNE 2020 Articles The Montreal mine, Iron County, Wisconsin .................................. 487 COVER: BARITE, 6.5 cm, from the Montreal mine. David and Karen DeBruin collection, ex Muscatine...$324/three years, (Canada) $196/one year, (outside USA other than Canada) $275 for one year Subscription |  | Bekker, A., Slack, J. F., Planavsky, N., Krapez, B., Hofmann, A., Konhauser, K. O., Rouxel, O. J. (2010) Iron Formation: The Sedimentary Product of a Complex Interplay among Mantle, Tectonic, Oceanic, and Biospheric Processes. Economic Geology, 105 (3) 467-508 doi:10.2113/gsecongeo.105.3.467 | Journal (article/letter/editorial) | | Inc. Economic Geology, v. 105, pp. 467ā508 Iron Formation: The Sedimentary Product of a Complex Interplay...Place N. Copernic, 29280 PlouzanĆ©, France Abstract Iron formations are economically important sedimentary...geochemical evolution of Earth. Two types of Precambrian iron formations have been recognized with respect to...to their depositional setting. Algoma-type iron formations are interlayered with or stratigraphically linked...(VMS) deposits. In contrast, larger Superior-type iron formations are developed in passive-margin sedimentary |
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