 | | 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. ___________________________ |  | | 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) | | Geology of the Florence Area, Wisconsin and Michigan GEOLOGICAL SURVEY PROFESSIONAL Prepared under...Wisconsin Geological and Natural History Survey; Michigan Department of Conservation^ Geological Survey... Geology of the Florence Area, Wisconsin and Michigan By CARL E. DUTTON GEOLOGICAL SURVEY PROFESSIONAL...Wisconsin Geological and Natural History Survey; Michigan Department of Conservation, Geological Survey...________________________________ Discovery and mining of iron ore_________________ Previous geologic work____ |  | | 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...18* Photomicrograph of quartzite with abundant tourmaline and muscovite ' 19. 81 .»,,..,...« 85 Photomicrograph |  | | 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) | | BensonMines magnetite-hematite depositis situatedin an iron rich metasedimentary horizonin a large paragneiss...mineralizedhorizon) 3. migmatiticplagioclase gneiss County,New York occurin metasedimentary rocks 4. pyro...the western limb of the Benson synform. Lawrence County and have concludedthat they are They may be present...thoseof St. Lawrence County. A third possible origin by the metamorphismof an originally iron Granite rich sedimentaryunit..... 5 ßßß 2 7 2 ...... 1 1 1 ...... 1 1 1 Tourmaline ......... 1 ßßß Fluorite .............. |  | | 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 ______________ |  | | Report (issue) | | Deposits of the Palmer Quadrangle, Marquette County, Michigan GEOLOGICAL SURVEY PROFESSIONAL Prepared...cooperation with the Geological Survey Division of the Michigan Department of Natural Resources PAPER 769 Bedrock...Deposits of the Palmer Quadrangle, Marquette County, Michigan By JACOB E. GAIR With a section on THE EMPIRE...EMPIRE MINE By TSU-MING HAN, CLEVELAND CLIFFs IRON CoMPANY GEOLOGICAL SURVEY PROFESSIONAL PAPER 769...cooperation with the Geological Survey Division of the Michigan Department of Natural Resources A1iddle Precambrian |  | | Book | | Developments in Precambrian Geology 6 IRON-FORMATION: FACTS AND PROBLEMS DEVELOPMENTS IN PRECAMBRIAN...MEL’NIK 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, Department...c a t i o n Dai:, Main entry under title: Iron-formation, facts and problems. (Developments in Pl’ecmbrian...c) I n c l u d e s bibliograrhies ;rd index. 1. Iron ores. I. Trendall, A. F. (Alec FraEcis) 11. Morris |
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