 | | Report (issue) | | of the Little Commonwealth area Florence County, Wisconsin by Robert W. Johnson, Jr..> /*?«2 V "** U...OPEN-FILE REPORT Prepared in cooperation with the Wisconsin Geological and Natural History Survey This report...phyllite and garnet quartzite .<>.... 29 Stilpnomelane-garnet slate ............ 32 ....... 0 ....« Quartzose phyllite and garnet quartzite Stilpnomelane-garnet slate ..... ...... ....« 69 73 Rocks...Little Commonwealth exploration, Florence County, Wisconsin . < Figure 1* Map shoving location of the |  | | Report (issue) | | Geology of the Florence Area, Wisconsin and Michigan GEOLOGICAL SURVEY PROFESSIONAL Prepared under...Survey; University Extension The University of Wisconsin Geological and Natural History Survey; Michigan... PAPER 633 Geology of the Florence Area, Wisconsin and Michigan By CARL E. DUTTON GEOLOGICAL SURVEY...Survey; University Extension The University of Wisconsin Geological and Natural History Survey; Michigan...________________________________ Discovery and mining of iron ore_________________ Previous geologic work____ |  | | Journal (article/letter/editorial) | | or equivalent Middle pre-Cambrian(Huronian) rocks Iron-formation shown in solid black Staurolite or equivalent...the Huronian sedimentary rocks, especially in the iron formations and the graywackes and slates, and in...(Algoman?) is recognized. In near-by areas of Wisconsin and Minnesota, a later thermal metamorphism is...of which lie in immediately adjacent parts of Wisconsin. The zones range in width from less than a mile...that of intermediate and high grade. The principal iron-ore deposits of the region—the "soft ores"—are restricted |  | | Journal (article/letter/editorial) | | OF MICHIGAN N. KING OF THE IRONWOOD AND WISCONSIN • IRON- HUBER CONTENTS PAGE Abstract ............................. Stratigraphy of the Ironwood iron-formation .......................... General description...features of the iron-formation members .................... Lateral continuity of the iron-formation members...members .................. Alteration of the iron-formation ..................................... Primary...Primary mineralogy and compositionof the Ironwood iron-formation ........ Location of material studied |  | | Journal (article/letter/editorial) | | MAY, 1954 SEDIMENTARY FACIES HAROLD OF No. 3 IRON-FORMATION L. JAMES CONTENTS PAGE Abstract .................................... 239 The term "iron-formation" . .................................................... 239 240 The Precipitation of iron ................................................................................. 244 facies of iron-formation ................................................................................. Stilpnomelane............................................ |  | | Report (issue) | | Geology and Ore Deposits of the Iron River-Crystal Falls District, Iron County Michigan GEOLOGICAL SURVEY... Geology and Ore Deposits of the Iron River-Crystal Falls District, Iron County Michigan By H. L. JAMES, C..._______ Greenstone in the Hemlock FormationBird Iron-Bearing Member.._________ Thickness and relations...adjacent formations. _______-_____---_--_-Riverton Iron-Formation________________ General aspects....__...adjacent formations. _____----__-----_-__-Review of the iron-formation problem. Conditions of origin of the Paint |  | | Journal (article/letter/editorial) | | Sciences University of Wisconsin-River Falls 410 South Third Street River Falls, Wisconsin 54022 his is Wisconsin’s... breweries, bratwurst, and Packers football, Wisconsin also has a diverse geology and a history rich...forgotten, abandoned, and overgrown. In this respect, Wisconsin represents a frontier state for the mineral collector...Racine (Scovil 1994), the pegmatites of Florence County (Koehier 1989) and the Wausau area (Falster 1987)...summarizes and highlights what has been found in Wisconsin in the past 150 years and points the way to new |  | | Journal (article/letter/editorial) | | Economic Vol. 68, 1973, pp. 934-959 Precambrian Iron-Formations of the United States * R. W. B^YLE¾^m)...The thickest and most extensive Precambrian iron-formations of the United States are in the Lake...Lake Superior region, in Minnesota, Wisconsin, and Michigan. Thinner units occur within the Precambrian...of Colorado, New Mexico, and Arizona. The major iron-formations in the Menominee, Marquette, Gogebic...about 2 b.y. Lithologic associationsand detailed iron-formation stratigraphy,however, differ greatly from |  | | Report (volume) | | Geology of the Lake Mary Quadrangle Iron County, Michigan By RICHARD W. BAYLEY GEOLOGICAL SURVEY...William, 1919Geology of the Lake Mary quadrangle, Iron County, Michigan. Washington, U. S. Govt. Print. Off...Bibliography: p. 108--110. 1. Geology-Michigan-Iron Co. Iron County, Michigan. (Series) QE75.B9 no. 1077 ----Copy...the Lake Mary quadrangle, Iron County, and adjacent area in Dickinson County, Mich. 3. Magnetic survey...and sees. 6-8 and 16-18, T. 42 N., R. 31 W., Iron County, Mich. 4. Magnetic survey in parts of sees. 19 |  | | Journal (article/letter/editorial) | | 299-320 GEOLOGY OF THE TEMISCAMIE IRON-FORMATION, LAKE ALBANEL IRON RANGE, MISTASSINI TERRITORY, QUEBEC................................. 303 Temiscamie iron-formation 303 ...................................................................... Magnetitic iron-silicatemember ............................................. 319 319 ABSTRACT The Lake Albanel iron range is located 400 miles north of Montreal, l•uebec...area for iron ore since 1953. Sedimentsof the Mistassini group, which include the Temiscamie iron-formation |  | | Report (volume) | | Range Super~oup in the . G0gebic Iron District, Michigan and Wisconsin GEOLOGICAL SURVEY Prepared in...Range Supergroup in the Gogebic Iron District, Michigan and Wisconsin By ROBERT GORDON SCHMIDT GEOLOGICAL...Precambrian X strata, particularly the Ironwood Iron-formation, and of the relationship between ore location...Range Supergroup in the Gogebic iron district, Michigan and Wisconsin. (Geological Survey bulletin ; 1460)...Stratigraphic--Precambrian. 2. Iron ores--Michigan--Gogebic Co. 3. Iron ores--Wisconsin--Iron and Ashland Cos. 4 |  | | Report (issue) | | GEOLOGY OF THE NORTHERN CRYSTAL FALLS AREA IRON COUNTY, MICHIGAN By F. J. Pettijohn Prepared with the... GEOLOGY OF THE NORTHERN CRYSTAL FALLS AREA IRON COUNTY, MICHIGAN By F. J. Pettijohn REPRINTED 1958...Greenstones.............. Footwall strata ............ Iron-formation ............ Hanging-wall strata. ....................... Stratigraphy ................ Iron-formation ............ Breccia-graywacke bed .....slates ............. Magnetic slate ............ Stilpnomelane mudstones....... Gray slates ............. Upper |  | | Report (issue) | | setting of Lower Proterozoic iron-formations in parts of northern Wisconsin by Carl E. Button Open-File...The geology of Precambrian rocks in northern Wisconsin has long been only generally known, largely because...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 |  | | Report (volume) | | Geology of the Kelso Junction Quadrangle Iron County, Michigan By KENNETH L. WIER GEOLOGICAL SURVEY...geology____-_____-__-___-__-___--____-_______-_-_-______ Iron.________________________________________________________...pocket GEOLOGY OF THE KELSO JUNCTION QUADRANGLE IRON COUNTY, MICHIGAN By KENNETH L. WIER ABSTRACT The Kelso...quadrangle covers about 51 square miles in eastern Iron County, which is in .the northern peninsula of Michigan...ferruginous slate and slaty and cherty iron-formation, although iron ore has been mined from the formation |  | | 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 __ _______________________ |  | | Report (issue) | | Ore Deposits of the Palmer Quadrangle, Marquette County, Michigan GEOLOGICAL SURVEY PROFESSIONAL Prepared...Ore Deposits of the Palmer Quadrangle, Marquette County, Michigan By JACOB E. GAIR With a section on THE...THE EMPIRE MINE By TSU-MING HAN, CLEVELAND CLIFFs IRON CoMPANY GEOLOGICAL SURVEY PROFESSIONAL PAPER...half of the Palmer quadrangle contain important iron ore deposits and overlie lower Precambrian gneiss...ore deposits of the Palmer quadrangle, Marquette County, Michigan. (Geological Survey professional paper |  | | Report (issue) | | (CaBSiO4OH) vesicle filling from a basaltic Houghton County lava flow. Small specks of native copper occur.................................................. Iron Deposits ···- ·································...exceptionally fine, twinned analcite crystals from Houghton County ························-··-······-··-········...····· 41 2. Ankerite on siderite from Alpena County ···-··············-··················· 46 3....stalactitic limonite from Negaunee in Marquette County .............................................. |  | | Book | | Developments in Precambrian Geology 6 IRON-FORMATION: FACTS AND PROBLEMS DEVELOPMENTS IN PRECAMBRIAN...Plate Tectonics 5. Y.P. MEL’NIK Precambrian Banded Iron-formations. Physicochemical Conditions of Formation...Formation DEVELOPMENTS IN PRECAMBRIAN GEOLOGY 6 IRON-FORMATION FACTS AND PROBLEMS Edited by A.F. TRENDALL...b l i c a t i o n Dai:, Main entry under title: Iron-formation, facts and problems. (Developments in...c) I n c l u d e s bibliograrhies ;rd index. 1. Iron ores. I. Trendall, A. F. (Alec FraEcis) 11. Morris |  | | Journal (article/letter/editorial) | | GEOCHEMICAL DISTINCTIONS AMONG ENVIRONMENTAL TYPES OF IRON FORMATIONS MICHAEL M. KIMBERLEY Department of...environmental types of iron formations. Chem. Geol., 25:185--212 Classification of iron formations according...major iron-formation types are largely independent of deposit age. No evidence is found in iron formations...abundant inland seas. Shallow-volcanic-platform iron formations typically display large positive europium...phosphorus and alkali content, even within individual iron formations. Various minor-el6ment abundances may |  | | Book | | ....243 APPENDIX II: MINERAL SPECIES LISTED BY COUNTY ...............................248 ABOUT THE AUTHORS...Because of the discovery of the native copper and iron deposits in the Northern Peninsula, that region...contributions to our knowledge of the geology of the iron ranges remained scattered and fragmentary. The post-World...Northern Peninsula in both the Copper Country and the iron ranges by the U.S. and Michigan Geological Surveys...Ontonagon, Houghton, and Keweenaw Counties GROUP Iron and Dickinson Counties Jacobsville Sandstone u |  | | Journal (article/letter/editorial) | | occurrences. These localities have been listed by county; and, strictly for convenience, the list has been...None theless, with the aid of a good state or county map, plus local inquiries, the list could be helpful...micromounting PENINSULA Wayne County International Salt C o . mine—Detroit Alpena County National G y p s u m...dolomite, marcasite, pyrite, quartz, sphalerite Eaton County anhydrite, carnallite (r), celestite, dolomite...grunerite, magnetite, quartz Imperial Heights Huron County (c)—Pigeon (near Bayport) calcite, glauconite |  | | Journal (article/letter/editorial) | | prehnite, pumpellyite, zeolites, etc.; and 2) the iron deposits, famous for hema tite, goethite, manganite...manganite, grunerite, chloritoid, seamanite, and stilpnomelane, among many others. In all, nearly 260 valid...clay in altered shale; Copper King mine, Eureka County, Nevada (Erd, Fos ter, and Proctor, 1953), and...nahcolite, shortite, searlesite, and others, Uintah County, Utah (Milton, Axelrod, and Grimaldi, 1955). 3...form and ap pearance and occur together in Lake County, Oregon, and in the Black Forest, Germany (Gross |  | 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) | | Geologists, Inc. Economic Geology, v. 105, pp. 467–508 Iron Formation: The Sedimentary Product of a Complex...Place N. Copernic, 29280 Plouzané, 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 |  | | Journal (article/letter/editorial) | | FIG.. 4 PLS. MARCH 1951 IRON FORMATION AND ASSOCIATED ROCKS IN THE IRON RIVER DISTRICT, MICHIGAN By...By HAROLD L. JAMES ABSTRACT The iron formation of the Iron River district is part of a Precambrian sequence...strata characterized by a high iron content and varied mineralogy. The iron formation, where unoxidized...20 per cent iron in the form of very finely disseminated pyrite. Graywacke overlies the iron formation...consists of clastic grains in a matrix of siderite or iron-rich chlorite. Above the graywacke is a magnetic |  | Planavsky, Noah J., Slack, John F., Cannon, William F., O'Connell, Brennan, Isson, Terry T., Asael, Dan, Jackson, John C., Hardisty, Dalton S., Lyons, Timothy W., Bekker, Andrey (2018) Evidence for episodic oxygenation in a weakly redox-buffered deep mid-Proterozoic ocean. Chemical Geology, 483. 581-594 doi:10.1016/j.chemgeo.2018.03.028 | Journal (article/letter/editorial) | | 06520, USA 2 U.S. Geological Survey (Emeritus), National Center, MS 954, Reston, Virginia 20192, USA 3 Department...Oceanographic Institution, Woods Hole, MA 02543, USA 4 Department of Earth Sciences, University of California-Riverside...California-Riverside, Riverside, California 92521, USA US *corresponding author: noah.planavsky@yale.edu...pockets of euxinia ED existing in predominantly iron-rich (ferruginous) deep waters. The Animikie Basin...Group) in the Iron RiverCrystal Falls district of the Upper Peninsula of Michigan, USA. Based on previous |
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