 | | Report (issue) | | AND SOUTHEASTERN PARTS OF THE IRON RIVER DISTRICT IRON COUNTY, MICHIGAN By Harold L. James and Kenneth...cooperation of the Geological Survey Division, Michigan Department of Conservation WASHINGTON, D. C....AND SOUTHEASTERN PARTS OF THE IRON RIVER DISTRICT. ffiON ·COUNTY, MICHIGAN By Harold L. James and Kenneth...• • • • • • Footwall strata..................... Iron-f'orma tion. • • • • • • • • • • • • • • • • • •...w••••••• Section 24, T. 43 N., R. 35 w....... Spies mine area ( EisEt) •••••• ·• • • .Swt· sec. 24.. • • |  | | 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...formations. _______________________________ Baraga Group._____________________________ Hemlock Formation___________________ |  | | 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 |  | | 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 |  | | 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...strata characterized by a high iron content and varied mineralogy. The iron formation, where unoxidized...interlaminated chert and siderite. It is underlain by a graphitic slate containing about 20 per cent iron in the...finely disseminated pyrite. Graywacke overlies the iron formation with at least local disconformity; this |  | | 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; |  | | Journal (article/letter/editorial) | | Note on the beach sand from Baltic Sea By TOMASZ TURLEY Downloaded by [University of Florida] at 16:59...examination of a sample of the beach sand from the Baltic coast of the town of Gdynia, Poland. The sample...George DeVore of the University of Chicago, the Baltic Sea sand has been analyzed for the heavy minerals...its varieties, chert, flint, opal—also contains plagioclase, orthoclase and the mica group; magnetite, hematite...1957) there appear a number of articles concerning Baltic Sea sand. These papers deal with the sand's mineralogical |  | | Book | | The Hunsrück Slate 37 Chapter 5 The Rhynie Chert 47 Chapter 6 Mazon Creek 59 Chapter 7 Grès...109 Chapter 12 Grube Messel 121 Chapter 13 Baltic Amber 131 Chapter 14 Rancho La Brea 142 Appendix...Berlin: 208. Natural History Museum of Los Angeles County: 254, 257, 259, 266. John Nudds, University of...by plants and animals, and the Devonian Rhynie Chert was one of the first-known – and is still the best-known...scene, and the Morrison Formation of the western USA is the bestknown Lagerstätte preserving these giants |  | | Report (chapter) | | and State University, Blacksburg, Virginia 24061, USA Abstract:Evolution of the atmosphere between 3.9...became dominated by widespread stromatolitegrowth and iron and manganese precipitation in vast epicontinental...oxygen for the second major reservoir, namely reduced iron and manganese. Only after oceanic sinks were utilized...more episodic crustal growth in the southwestern USA. TDM model ages indicate addition of new crust to...Detrital zircons from the Wyoming Province in the USA are up to 3.96 Ga (Mueller et al. 1992) and from |  | | Journal (article/letter/editorial) | | 96 (1999) 1 Organic-walled microfossils from the Chert–phosphorite Member, Tal Formation, Precambrian–Cambrian...microfossils of Neoproterozoic Dongjia Formation, Lushan County, Henan Province, North China, 94 (1999) 121 Aeromagnetic...felsic melts in the St. Francois Terrane of Missouri, USA, 95 (1999) 69 Anorthosite The Proterozoic Ahvenisto...origin of 3.4 to 3.1 Ga pyrite at the Princeton gold mine, Barberton Greenstone Belt, South Africa, 96 (1999)...(1999) 11 Barite/chert Growth fault control of Early Archaean cherts, barite mounds and chert-barite veins |  | | Journal (article/letter/editorial) | | Chemical environments of deposition of ancient iron- and manganese-rich sediments and cherts H.C. Dasgupta...Greenland, (2) Yilgarn Block, Australia, (3) Montana, USA, and Proterozoic BIFs from (4) Hamersley Basin, Australia... (6) Biwabik iron formations, USA and the Late Proterozoic (7) Upper Tindhir Group iron formation, Alaska...concurrence in the results obtained from studies on iron and=or manganese deposits and coexisting cherts...Science B.V. All rights reserved. Keywords: iron; manganese; chert; lacustrine; marine 1. Introduction Evidence |  | | Book | | A. Selden BSc PhD University of Kansas, Kansas, USA MANSON PUBLISHING DEDICATION To Chris and Maura...Abbreviations 7 Introduction 8 Chapter 1 The Gunflint Chert 12 Chapter 2 Mistaken Point 26 Chapter 3 The...Chapter 7 Mazon Creek 117 Chapter 8 The Chinle Group 138 Chapter 9 The Morrison Formation 151 Chapter...Barbara, USA: 11. Black Hills Institute for Geological Research, Hill City, South Dakota, USA: 167, 170...125, 126, 127. Sam Ciurca, Rochester, New York, USA: 72, 75, 81, 85. Simon Conway Morris, University |  | | Report (volume) | | where its type locality occurs; and the Colorado group or shale, used widely in Canada, is under the State...(rock-stratigraphic) term of higher rank than "group," but more commonly as a time-stratigraphic (tune-rock)...appears in brackets; the Osage series [see Osage group 1] of Early Mississippian age is an example. Precambrian...glaciation 2 Farewell glaeiation 2 Healy glaciation 2 Iron Creek glaciation 2 Itkillik glaciation 2 Johnston...formation * or group; Jacksonian 1 I (Mississippi)] Eocene group 1 ; Claibornian |  | | 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...Carbonate units of the Chocolay Group in the Lake Superior area, USA and the Gordon Lake Formation of...Nipissing diabase dykes and sills while the Chocolay Group is bracketed in age between ∼2.29 and 2.20 Ga. The...Dolomite in the northeastern exposures of the Chocolay Group record δ13 C values as high as +9.5‰ versus V-PDB |  | | Journal (article/letter/editorial) | | 1025-1060 ORIGIN OF HENRY PRECAMBRIAN LEPP AND IRON SAMUEL FORMATIONS S. GOLDICH CONTENTS PAGE ...1027 Problem of the iron formations ..................................... 1027 Iron ...................................................... Chemistryof iron formations ............................................................................. Tenor of iron ..................................................Precambrian ............................................ Iron formations outside of North America ........... |  | | Journal (article/letter/editorial) | | Plymouth, UK 3 Indiana University, Bloomington, USA One of the most severe mass extinctions of Earth’s...microbial activities (organic matter degradation, iron and sulfate reducing activities, etc) that result...(ideallyCa2Mn3+3Si3O11(OH)3) from the Keweenaw Peninsula, USA, was refined by single crystal X-ray diffraction...Department of Geological Sciences, Providence, RI, USA (Ashley_Nagle@brown.edu) 2 Department of Terrestrial...Carnegie Institution of Washington, Washington, DC, USA The advantage of studying basalts from intra-transform |  | | Book (volume) | | CB2 1RP 32 East 57th Street, New York, NY 10022, USA 10 Stamford Road, Oakleigh, Melbourne 3166, Australia...Proterozoic evolution 20 Hamersley Basin 2/ The Hamersley iron ore deposits and accompanying apatite 22 / Contents...Platform 73 Aravalli Group of Rajasthan 73 Aravalli Group of Madhya Pradesh 75 Bijawar Group of Madhya Pradesh...Pradesh 77 Bijawar Group of Uttar Pradesh 78 Delhi Group of Western India 79 Vindhyan Group of Central India...Chattisgarh Basin of Madhya Pradesh 79 Upper Cuddapah Group of Southern India Lower Palaeozoic phosphorites |  | | Book (volume) | | 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...along adjoining Co. linerock crystal. BARROW COUNTY WINDER, along rd. to Jefferson and 1½ mi. inside...Guide for Rock Hounds in the United States BARTOW COUNTY AREA, Saltpeter Cave, as floatjasper. CARTERSVILLE:...pitsBarite, Geodes, Goethite, Hematite, Limonite, Iron minerals; area mines, as important producersBarite |  | | Report (issue) | | for foreign countries, if a given name refers to a mine or deposit, a nearby location or administrative...names may be used to refer to a single deposit or mine. For large deposits or mineralized areas, a 3 single...is meant to identify the area, deposit, district, mine, or occurrence to which the geologic, economic,...supracrustal rocks, Finland, with reference to the Baltic Shield, in Notholt, A.J.G., Sheldon, R.P., and...F.D., 1997, Rare earth chemistry of perovskite group minerals from the Gardiner Complex, East Greenland: |  | | Report (volume) | | Geology of the Flint Hill Quadrangle, Fall River County, South Dakota CJm/ _^^^ GEOLOGICAL SURVEY BULLETIN... Geology of the Flint Hill Quadrangle, Fall River County, South Dakota By HENRY BELL III and EDWIN V. POST...quadrangle, with emphasis on the rocks of the Inyan Kara Group of Early Cretaceous age UNITED STATES GOVERNMENT..._______________________________________ 516 Inyan Kara Group.________________._-___-___-__-__---.--_ 516 History...Descriptions of diamond-drill cores of Inyan Kara Group. __ 553 Skull Creek Shale..._________________________________ |  | | Report (volume) | | subsequent reports cited. The use of a wellknown group name in parentheses following the age designation...belonging to . the group mentioned, but that its fossils indicate correlation with that group. 4 LEXICON... 5 in., inch or inches. Circ., Circular. Co., County or Company. Indus., Industrial. Inst., Institute...thence S. of Little Mtn, thence N. of Culbreath Mine, thence N. of Meeting St. (2 mi.), and thence direct...Pre-Cambrian : Central southern Virginia (Mecklenburg County). F. B. Laney, 1917 (Va. Geol. Surv. Bull. 14, |  | | Journal (issue) | | ............................................ A CHERT LOCALI1Y IN ALABAMA. By Peter Zodac ................................. 96 CLUB AND SOCIE1Y NOTES MICHIGAN MINERALOGICAL SOOETY . . . . . . . . . . . . ...world . After leaving Oslo, the world-famous silver mine in Saggrenda was the first mineral locality we visited...morning from below. Eventually we came out of the mine and began to explore its extensive dumps. These...ordinarily are not sold to private collectors. Since the mine is not in Kongsberg, but actually in Saggrenda, |  | | 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...Formation in the Sierra Madre, WY, and from the Whalen Group in the Rawhide Creek area in the Hartville Uplift... carbonates from other exposures of the Whalen Group in the Hartville Uplift and all carbonate units...University, 20 Oxford Street, Cambridge, MA 02138, USA. Fax: /1-617-495-8839 E-mail address: abekker@fas |  | | Report (issue) | | QUARTZ-PEBBLE CONGLOMERATES REPORT OF THE WORKING GROUP ON URANIUM GEOLOGY ORGANIZED BY THE INTERNATIONAL...product of the Agency's Working Group on Uranium Geology. This group gathered and exchanged information...quartz-pebble conglomerates, Southern Lake Superior Region, USA ...................................................conglomerates of the Black Hills, South Dakota, USA .......... J.A. Redden Application of the time and...quartz-pebble conglomerate in southeastern Wyoming, USA ..................................... R.S. Houston |
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