 | | 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..._______ Greenstone in the Hemlock FormationBird Iron-Bearing Member.._________ Thickness and relations |  | Planavsky, Noah, Rouxel, Olivier, Bekker, Andrey, Shapiro, Russell, Fralick, Phil, Knudsen, Andrew (2009) Iron-oxidizing microbial ecosystems thrived in late Paleoproterozoic redox-stratified oceans. Earth and Planetary Science Letters, 286 (1) 230-242 doi:10.1016/j.epsl.2009.06.033 | Journal (article/letter/editorial) | | e l s ev i e r. c o m / l o c a t e / e p s l Iron-oxidizing microbial ecosystems thrived in late Paleoproterozoic...Riverside, 900 University Ave., Riverside, CA, 92521, USA Department of Marine Chemistry and Geochemistry,...MS25, 266 Woods Hole Road, Woods Hole, MA 02543, USA Department of Geological Sciences, University of...California State University, Chico, Chico, CA 95929, USA e Department of Earth Sciences, Lakehead University...Lawrence University, P.O. Box 599, Appleton, WI, 54912, USA b c a r t i c l e i n f o Article history: Received |  | | 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 ..................................................................................... Hematite-banded rocks ................................ |  | | Report (issue) | | (CaBSiO4OH) vesicle filling from a basaltic Houghton County lava flow. Small specks of native copper occur...the surface and between the nodular masses. The Michigan Bicentennial symbol (back cover) incorporates...Survey Division BULLETIN 6 THE MINERALOGY OF MICHIGAN by E. Wm. Heinrich Professor of Mineralogy and...University of Michigan Ann Arhor, Michigan Lansing, Michigan 1976 STATE OF MICHIGAN WILLIAM G. Mrr...State of Michigan CL '48 s.321.6. Printed by Speaker-Hines and Thomas, Inc., Lansing, Michigan. Available |  | | Report (issue) | | VOLCANICS (MIDDLE KEWEENAWAN) ON ISLE ROYALE, MICHIGAN Prepared in cooperation with the National Park...Isle Royale, Michigan By N. KING HUBER GEOLOGY OF ISLE ROYALE NATIONAL PARK, MICHIGAN GEOLOGICAL SURVEY...--------- 13 Scoville Point, Middle Point, and Tobin Harbor Flows -------------------------------- 13...middle and upper Keweenawan rocks of northern Michigan and adjacent parts of Wisconsin--------------...NATIONAL PARK, MICHIGAN THE PORTAGE LAKE VOLCANICS (MIDDLE KEWEENAWAN) ON ISLE ROYALE, MICHIGAN By N. KING |  | | Report (volume) | | 64-66 Supt.of Docs. No.: 119.3:1309 1. Geology-Michigan-Isle Royale National Park-Guide-books. I. Title...pile the Portage Lake Volcanics ______ Rock Harbor-Tobin Harbor area __________ Washington Harbor area_______________...by Alfred C. Lane of the Geological Survey of Michigan. His geologic map and report were published in...samples ob- HOIST AND BOILER REMAINS at Island mine, abandoned in 1877. (Fig. 2) tained with diamond...developed through the years and is widely used in the Michigan copper district. Only an experienced geologist |  | | Journal (article/letter/editorial) | | the mineral, its thickness, orientation of the crystal, and birefringence (difference between the maximum...the change in purple to green (stage 3 to 4 in crystal a). A switch to 200 grit has been made at stage...indicates a decreasing thickness difference in crystal (a) to the white outer edge of about 0.05 mm. The...section has been ground down to 0.03 mm (stage 8). Crystal c appears gray throughout due to its orientation...flint. The English chalk (and hence its flints) falls into two major sedimentary provinces. These are |  | | Report (issue) | | Geology of the Little Commonwealth area Florence County, Wisconsin by Robert W. Johnson, Jr..> /*?«2 V...of the Little Commonwealth exploration, Florence County, Wisconsin . < Figure 1* Map shoving location...exploration and generalized geology of the Crystal Falls, Michigan, and Florence, Wisconsin, area ..........martitic quartzite, showing distribution of martite and iron silicates .*.....««»......«... / 12, 64 Photomicrograph...sequence of Precambrian rocks in Iron and Dickinson Counties, Michigan . . . . 10 2* Mineral assemblages |  | | Book (volume) | | the Atlantic Coast Fall Line, so named from the falls or rapids in rivers at places where they pass from...discovered Diamonds, the largest a pale yellow crystal of 4½ carats picked up near Morrow Station in Clayton...occasionally washed out of gold pans. Many other gem crystal species occur in pegmatite exposures, such as Aquamarine...Dahlonega Co. and Rabum Co., and the McDuffie County Belt extending through portions of McDuffie, Warren...Sphalerite. BALDWIN COUNTY MILLEDGEVILLE, at state farmjasper. BANKS COUNTY COMMERCE, along Hwy. 59 |  | | Book | | Mineralogy of Michigan by E. W. Heinrich updated and revised • by George W. Robinson M By E W~ Hellnr]ch...Museum Michigan Technological University Houghton, Michigan 49931 2004 © 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 |  | Tobin, Thomas S., Roberts, Eric M., Slotznick, Sarah P., Biasi, Joseph A., Clarke, Julia A., O'Connor, Patrick M., Skinner, Steven M., West, Abagael R., Snyderman, Lucia S., Kirschvink, Joseph L., Lamanna, Matthew C. (2020) New evidence of a Campanian age for the Cretaceous fossil-bearing strata of Cape Marsh, Robertson Island, Antarctica. Cretaceous Research, 108. 104313 doi:10.1016/j.cretres.2019.104313 | Journal (article/letter/editorial) | | Cape Marsh, Robertson Island, Antarctica Thomas S. Tobin, Eric M. Roberts, Sarah P. Slotznick, Joseph A....Date: 6 November 2019 Please cite this article as: Tobin, T.S., Roberts, E.M., Slotznick, S.P., Biasi, J...Robertson Island, 2 Antarctica 3 Thomas S. Tobin*1, Eric M. Roberts2, Sarah P. Slotznick3, Joseph...Sciences, University of Alabama; Tuscaloosa, AL, USA College of Science and Engineering, James Cook University;...University of California, Berkeley; Berkeley, CA, USA Division of Geological and Planetary Sciences, California |  | | Journal (article/letter/editorial) | | Research 128 (2004) 367–383 Palaeomagnetism of iron-formation from the late Palaeoproterozoic Frere...Formation (1.9–1.8 Ga), including shaly and peloidal iron-formation, were obtained from two holes drilled...The predominant magnetic mineral in the iron-formation is hematite but a small amount of magnetite also...(680 ◦ C), dual-polarity component A carried by hematite that gave a bedding dip-corrected direction of...Palaeoproterozoic; Capricorn Orogen; Earaheedy Basin; Iron-formations; Palaeomagnetism 1. Introduction ∗ |  | | Journal (article/letter/editorial) | | mudstone/dolomicrite) and four diagenetic phases (iron oxide, fibrous calcite cement, calcite spar cement...and dolomite) are distinguished at the study site. Iron oxide, a minor component, stained and/or coated...Highway 157 near the town of Moulton in Lawrence County, AL (Kopaska-Merkel and Haywick 2001) (Figs. 1...potassium ferricyanide, to qualitatively estimate iron content of carbonate mineral phases. the scope...outcrop: (1) Iron Oxide, (2) Fibrous calcite spar, (3) Calcite spar and (4) Dolomite. Iron Oxide Iron oxide |  | | Journal (issue) | | Accretion Desk by Martin Horejsi Jim’s Fragments by Jim Tobin Meteorite Market Trends by Michael Blood Bob’s Findings...highlights a wonderful world the original finders of this iron could never even dream of. Two more views of...minds of the ancients who first brought this massive iron into captivity. Even though we are many centuries...centuries away from the people of Casas Grandes, the iron meteorite that bears the same name is a showpiece...Times Magazine The UCLA Meteorite Gallery by James Tobin I got an email that there was to be a grand opening |  | | Book (volume) | | 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods...gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason Cr.⎯fossils; |  | | Book (volume) | | 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods...gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason Cr.⎯fossils; |  | Wilson, Jonathan P., Fischer, Woodward W., Johnston, David T., Knoll, Andrew H., Grotzinger, John P., Walter, Malcolm R., McNaughton, Neal J., Simon, Mel, Abelson, John, Schrag, Daniel P., Summons, Roger, Allwood, Abigail, Andres, Miriam, Gammon, Crystal, Garvin, Jessica, Rashby, Sky, Schweizer, Maia, Watters, Wesley A. (2010) Geobiology of the late Paleoproterozoic Duck Creek Formation, Western Australia. Precambrian Research, 179 (1) 135-149 doi:10.1016/j.precamres.2010.02.019 | Journal (article/letter/editorial) | | Summons f , Abigail Allwood g , Miriam Andres h , Crystal Gammon b , Jessica Garvin j , Sky Rashby b , Maia...Earth and Planetary Sciences, Harvard University, USA Division of Geological and Planetary Sciences, California...Pasadena, CA, USA c Department of Organismic and Evolutionary Biology, Harvard University, USA d The Agouron...Agouron Institute, USA e Australian Centre for Astrobiology, University of New South Wales, Australia f...Institute of Technology, USA g Jet Propulsion Laboratory, USA h Chevron Corp., USA i Curtin University of |  | | Report (volume) | | General Geology of the Jackson Mountains Humboldt County, Nevada By RONALD WILLDEN CONTRIBUTIONS TO GENERAL...deposits______________________________________________________ Iron deposits._________________________________________________...Jackson Mountains and nearby areas in Humboldt County, Nev. Suggested correlation of the Tertiary rocks...the Jackson Mountains and other areas in Humboldt County. Nev. Page Index map.________________________...GENERAL GEOLOGY OF THE JACKSON MOUNTAINS, HUMBOLDT COUNTY, NEVADA By RONALD WILLDEN ABSTRACT The rocks exposed |  | | Journal (article/letter/editorial) | | tidal flat in the 1.85 Ga Michigamme Formation, Michigan, USA Eric E. Hiatt, Peir K. Pufahl, Cole T. Edwards...tidal flat in the 1.85 Ga Michigamme Formation, Michigan, USA, Sedimentary Geology (2015), doi: 10.1016/j...TIDAL FLAT IN THE 1.85 GA MICHIGAMME FORMATION, MICHIGAN, USA NU Pufahl, Peir K.2 peir.pufahl@acadiau.ca...of Wisconsin - Oshkosh Oshkosh, Wisconsin, 54901, USA FAX (920) 424-0240 Department of Earth and Environmental...million-year-old Bijiki Iron Formation Member of the Michigamme Formation, Michigan provide insight into |  | | Report (issue) | | 2. Geology of the Jackson Mountains, Humboldt County, Nevada, by C. R. Willden. 120 p,,'34 figs., 4...1, Geology of the Jackson Mountains, Humboldt County, Nevada by Charles Ronald Willden, U. S. Ge...deposits . . . • • . • . . 93 94 . . . . . . 95 Iron depoeitr Origin of tii u6 . .. , . ,. . . . •...• 2.7 ftlds. . • • Origin of the 65 c,7 iron dapositA. . . . . . . . 1:3 Copper deposits 4 :uicksilver...Chemical analys,4s or iron ore . . . • ** . . ,j6 4. :spectrographic analyses of iron content of Sappy Creek |  | | Report (issue) | | Talapoosa and Olinghouse districts and the Gooseberry mine. Northeast of Lovelock we pass through Roberts'....••••. ~ G<>ld ' 5il ver .••. •••...•...•.•. .4 Iron ... . •. •.. •.• . .•.. ......... Wd ' : inc .....GOOSEBERRY mine is located about 9 miles to the south of this point. Production at the mine is from an...silver (Asamera Company report). Operations at the mine were suspended in 1985, but Asamera began operations... High up at 3:00 are waste dumps at the Celatom mine, which supplies the diatomite processed in the Eagle-Picher |  | | Journal (article/letter/editorial) | | and cuprian pentahydrite: Their occurrence within mine waste RONALD C. PETERSON,1,* JANE M. HAMMARSTROM...mineral species with direct relevance to reactions in mine waste, occurs in a mineralogically zoned assemblage...assemblage in sheltered areas at the abandoned Big Mike mine in central Nevada at a relative humidity of 65%...diffraction data (MoKα radiation) from a single crystal of alpersite were reÞned in P21/c, resulting in...alpersite and cuprian pentahydrite are widespread in mine wastes that contain Cu-bearing sulÞdes, but in which |  | | Journal (article/letter/editorial) | | impurities within the quartz mainly include muscovite, hematite, apatite, and secondary fluid inclusions. The...removed volatile components; it also destroyed the crystal structure of gangue minerals and enhanced their...Hydrothermal quartz is an important substitute of crystal quartz that has been studied in detail because...mineral inclusions including mica, feldspar, and hematite are difficult to be removed because they are closely...Magnetic separation is mainly used for removing iron-bearing magnetic minerals, while flotation is mainly |  | | Report (issue) | | NORTHEASTERN ALASKA 1. 19 percent uranium. Fluorite, hematite, zircon, sphene, galena, and molybdenite, commonly...biotite indicates the presence of silicon, calcium, iron, aluminum, magnesium, lanthanum, zirconium, and...19 percent uranium. Minerals such as fluorite, hematite, molybdenite, galena, zircon, and sphene (table...pre-Carboniferous(?) gneissic granite of the area. Fluorite, hematite, molybdenite, galena, and other minerals, associated...Biotite Biotite Biotite Chlorite Chlorite Hematite Garnet Muscovite Muscovite Pyrite Muscovite |  | | Report (issue) | | 31 University of Nevada Press, Reno, Nevada 89557 USA Copyright © 2004 by University of Nevada Press Photographs...Olivenite, 1.6-cm cluster, Majuba Hill Mine, Antelope district, Pershing County. N. Prenn collection. Photograph...Goodsprings (Yellow Pine) Mining District, Clark County John C. Kepper 91 References 467 Contributors...COLOR PLATES (following page 242) Gold, Mexican Mine Gold, Majuba Placer Pyromorphite after Galena with...with Conichalcite Gold, Round Mountain Mine Quartz, Lovelock area Acanthite Grossular, Nightingale |
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