 | | Journal (issue) | | Mineral Localities: The Soudan mine, Vermilion Range, St. Louis County, Minnesota ........................Wallace Famous Mineral Localities: The Old Gunnislake mine, Callington District, Cornwall, England ..........inclusions, 4.5 cm, from the Soudan mine, Vermilion Range, St. Louis County, Minnesota. Don and Gloria Olson...FineMineral.com AQUAMARINE ON MUSCOVITE Chumuru Mine, Nagar, Hunza Valley, Gilgit District, Northern...$327/three years, (Canada) $180/one year, (outside USA other than Canada) $259 per year Subscription (individuals |  | | Journal (article/letter/editorial) | | ECONOMIC Vox.. XXI. THE NOVEMBER, SOUDAN TION GEOLOGY FORMATION AS TO THE AND ORIGIN IRON JOHN...JOHN โข926. A OF THE No. 7 NEW SUGGES- VERMILION ORES. W. GRUNER. INTRODUCTION. TaE Soudan...Winehell, N.H., and Winchell, H. V., "Iron Ores of Minnesota," Geol. and Nat. Hist. Survey of Minn. Bull. 6...6, โข89โข. Winchell, N.H., "The Geology of Minnesota," Geol. and Nat. Hist. Survey of Minn., vol. IV.,...x899. Clements, J. M., "The Vermilion Iron-bearing District of Minnesota," U.S. Geol. Survey Mon. 45 |  | | Report (issue) | | P. WALCOTT, ])irector THE VERMILION IRON-BEARING DISTRICT OF MINNESOTA \VITH J. AN ATLAS M:oRG^]sr...or Giants range. Area north and northwest The gabbro plateau 35 of Giants 36 37 38 range Gunfiint...166 Metamorphism of the greenstones Section III. Soudan formation Occurrence and character 169 172 172...portion of the Soudan formation Microscopic characters of the fragmental portion of the Soudan formation Macroscopic...Intricate foldmg of the elastics associated The Soudan formation with the iron-bearing formation iron-ore |  | | Report (issue) | | .' ' , ' '- llhtltttfsuy ยทof 11iurttsitta MINNESOTA GEOLOGICAL SURVEY " , WILLIAM H.EMMON~,' Director...MAGNETITE I. DEPOSITS'OF' NORTHERN, ST~ 'LOUIS ,'COUNTY, ,MINNESOTA" ' .,' _:.1 ", ,'BY 'FRANK"F.GROUT'...MINNEAPOLIS T~e University of Mi~,nes'ota " ," Vermilion River, a few mi les southwest of Crane Lake appears...granite intrusives. Uuiurrsity nf ~iuursntu. MINNESOTA GEOLOGICAL SURVEY Vv'rLLIAM H. EMMONS, Bulletin...GEOLOGY AND MAGNETITE DEPOSITS OF NORTHERN ST. LOUIS COUNTY, MINNESOTA BY FRANK F. GROUT ]\[INNEAPOLIS The |  | | Book | | Fi The Soudan Mine History wrought in iron Written by Michael โlron Mikeโ Hillman ISBN 0-9746171-1-3... William and Mary Ellen LaBeau, who arrived at Soudan Hill in 1884. a f /;/ / if Table of Contents...โ The First People The Shadow people arrived at Soudan Hill sometime before 2000 B.C. Standing about four...Indian peoples who succeeded them. They came to mine quartz, which was needed to make tools and weapons...Sioux. The Sioux considered the woodlands of Minnesota their home for as long as they could remember |  | | Journal (article/letter/editorial) | | SEPTEMBER 1061 PRECAMBRIAN STRATIGRAPHY OF MINNESOTA BY F. F. GROUT, J. W. GRUNER, G. M. SCHWARTZ,...History Survey of Minnesota as to the sequence of Precambrian rocks in and near Minnesota. Eleven formations...series are not so complete as that in and near Minnesota, and more work is needed to make correlation satisfactory...unconformity 1051 No Coutchiching recognized in Minnesota. . . 1020 Keweenawan Group 1051 Earlier Precambrian...trusives: Keweenaw Point volcanics. . . . 1055 1027 Soudan (iron-bearing) formation Middle Keweenawan basic |  | | Report (issue) | | GEOLOGY AND GEOCHRONOLOGY OF MINNESOTA UNIVERSITY OF MINNESOTA MINNESOTA GEOLOGICAL SURVEY GEORGE M...The Precambrian Geology and Geochronology of Minnesota BY SAMUEL S. GOLDICH, ALFRED O. NIER, HALFDAN...KRUEGER MINNEAPOLIS โข 1961 THE UNIVERSITY OF MINNESOTA PRESS PRINTED IN THE UNITED STATES OF AMERICA...and made the project possible. In addition the Minnesota Geological Survey supported the project, particularly...publication. The Graduate School of the University of Minnesota also made notable contributions of funds at critical |  | | Journal (article/letter/editorial) | | withthoseof thedeepminesof the VermilionRangeof Minnesota andthoseof Michigan, notwithxA paperon the "Replacement...followinggrade, similarto Old RangeBessemeroresof the Vermilion and MarquetteRanges, Per cent Fe (dried) ......EXPLORATION AT WEST END OF "A"ORE ZONE sc,u.r โข1 IT,ST STEEP ROCK ATIKOKAโข. PLAN Fro. IRON MINES LTD...contrastbetweenthe mineralogyof oreson the Atikokan Range,situatedten milesto the eastof SteepRock Lake where...the iron of the invading solutions. ORES OF VERMILION AND MICHIGAN IRON RANGES. Althoughthere has |  | | Report (issue) | | ", UNIVERSIT-Y OF MINNESOTA MINNESOTA GEOLOGICAL SURVEY WILLIAM H. EMMONS, DIRECTOR BULLETIN 80 MINERAL...MINERAL RESOURCES OF MINNESOTA EDITED BY WILLIAM H. EMMONS AND FRANK F. GROUT' MINNEAPOLIS . 1943... MIN N E SOT APR E S S UNIVERSITY OF MINNESOTA MINNESOTA GEOLOGICAL SURVEY WI L L I AM H. EM M 0 N...IRE C TOR BULLETIN 30 MINERAL RESOURCES OF MINNESOTA EDITED BY WILLIAM H. EMMONS AND FRANK F. GROUT...UNIVERSITY OF MINNESOTA PRESS FOREWORD This resume of the mineral resources of Minnesota is introduced |  | | Book | | Florence, and Iron River Gogebic iron district Vermilion iron district Mesabi iron district Accounts of...developments 45 ., 45 Clinton iron ores of Dodge County, Wis 45 Paleozoic iron ores in western Wisconsin...Bibliography 73 Michigan Northern Wisconsin Minnesota 77 Ontario 81 Lake Superior region (general)...dif trict.s in detail Gabbro St. 91 ])lateau Louis plain Vermilion 92 94 district Rainy Lake and...ridges General statement 98 99 , Northeastern Minnesota The lowland 99 100 100 102 102 102 103 105 |  | | Journal (article/letter/editorial) | | greenstones of the basement complex of the Vermilion district of Minnesota. They are in part basal to the other...the Helen mine, and all but the griinerite schist have been found in the Lake Eleanor iron range also, while...large quantities in every important part of the range, though small outcrops sometimes show the silica...a thin sheet just under the iron range proper west of the Helen mine and at other points in the region...fingers. Iron ore is mined in the Helen mine, and this mine is described in detail. The 161 I62 REVIEWS |  | | Journal (article/letter/editorial) | | G. M. Scnlvenrz, Uniaersi.ty of Minnesota, Minneapol,is, Minnesota. InrnootrcuoN The occurrenceof abundant...abundant in the somewhat schistose Soudan formation of the Vermilion Range as shown by Gruner.? 1 Becke, F...martite ore bodies and magnetites of the Mesabi range : Econ. Geol., v ol. 17, Plate Id, 1922. 6 Schwartz...Mesabi range: Eng. and Min. f ow., vol. 116, p. 412, fig. 8, 1923. 7 Gruner, J. W., The Soudan formation...and a new suggestion as to the origin of the Vermilion iron ores: Econ. Geol,.,vol.2l, figs. 2 and 3 |  | | Journal (article/letter/editorial) | | ARCHEAN JOHN W. GRUNER' University of Minnesota, Minneapolis, Minnesota During recent years attention has...of the iron-bearing formations of northeastern Minnesota led the writer to a close examination, not only...of the Huronian cherts, but also of the Archean Soudan formation and the overlying conglomerates.s The...by permission of Dr. W. H. Emmons, director, Minnesota Geological Survey. 'C. D. Walcott, "Pre-Cambrian...Biwabik Iron-bearing Formation of the Huronian in Minnesota," Amer. Jour. Sci., Vol. XLVIII (i919), p. 199 |  | | Report (issue) | | BIBLIOGRAPHY OF MINNESOTA 1951-1980 GEOLOGY ves ai รฉ Lita: ae i if โPe va MINNESOTA GEOLOGICAL...DIRECTOR BULLETIN BIBLIOGRAPHY SURVEY 46 OF MINNESOTA GEOLOGY 1951-1980 COMPILED G.B. MOREY, NANCY... BY BALABAN, AND LYNN Gn UNIVERSITY OF MINNESOTA ST. PAUL e 1981 SWANSON ISSN 0076-9169 @ ISBN...ISBN 0-934938-01-6 The University of Minnesota is committed to the policy that all persons shall have...bibliography brings Minnesota Geological Survey Bulletin 34, โโBibliography of Minnesota Geology,โโ by T |  | | Report (edition) | | UNIVERSITY OF MINNESOTA Minnesota Geological Survey PAUL K. SIMS, DIRECTOR BULLETIN 37 PHOTOGRAPH...University of Minnesota Press, MinncajJolis Copyright 195.4,19138 by the UNIVERSITY OF MINNESOTA All rights...Departments of Botany and Geology of the UniveTsity of "Minnesota Preface THIS volume has been prepared in an...attempt to make available to the citizens of Minnesota a general summary of the major geological features...Yet how many of the thousands of citizens of Minnesota employed in these enterprises understand the geological |  | | Journal (article/letter/editorial) | | LIFE IN THE ARCHEAN JOHN W. GRUNER University of Minnesota, Minneapolis, Minn. As was pointed out recently...formations in northern Minnesota led to the examination of thin sections of the Archean Soudan formation and the...the Huronian conglomerate directly overlying the Soudan forma- FIG. i.-Algae (probably blue-green). X...-Part Xg9o of same slide as Figure i. tion. The Soudan formation itself is recrystallized to such an extent...however, which proves the existence of algae in the Soudan formation. The specimen contain'J. W. Gruner, "Algae |  | | Journal (article/letter/editorial) | | granite, intrusive in all lower formations. VERMILION. Great Gabbro. Gabbros, diabases, etc. Upper...lent to the Ogishke and Knife formations of the Vermilion district.) Archean: Greenstones, hornblende schists...fine-grained gneiss. I Vermilion series: Intrusive granites, porphyries, and greenstones. Soudan formation (the...Region," by C. R. VAN HISE, assisted in Mesabi and Vermilion sections by C. K. Leith and J. Morgan Clements...those given in the preceding reports. In the Vermilion district the great Stuntz conglomerate and equivalent |  | | Report (issue) | | SHIRLEY, AND SEMINOE IRON-ORE DEPOSITS, CARBON COUNTY, WYOMING By T. S. LOVERING INTRODUCTION AND ACKNOWLEDGMENTS...this report are in the northern half of Carbon County, Wyo. (See fig. 27.) The Rawlins " paint-rock "...of these the Medicine Bow Mountains and the Park Range or Sierra Madre continue into Wyoming. About 75... the axes of the IRON-ORE DEPOSITS OF CARBON COUNTY, WYO. 205 Rocky Mountain ranges swing toward...the North Platte River between the Rattlesnake Range on the north and the Green River Mountains, the |  | | Report (edition) | | .i WM. R. JUDD UNIVERSITY OF MINNESOTA Minnesota Geological Survey GEORGE M. SCHWARTZ, DIRECTOR...Min1leapolis Copyright 1954 by the UNIVERSITY OF MINNESOTA All rights reserved. No part of this book may...attempt to make available to the citizens of Minnesota a general summary of the major geological features...Yet how many of the thousands of citizens of Minnesota employed in these enterprises understand the geological...foundation of our wellbeing, the hope of our future. Minnesota, though known as an agricultural state, has great |  | | Journal (article/letter/editorial) | | Places of Geological and Mineralogical Interest in Minnesota ROBERT SLOAN Department of Geology a n d Geophysics...i s , M i n n e s o t a 55455 Southeastern Minnesota Fossil Collecting. In general there is good to...collecting along most roadcuts in southeastern Minnesota east of U S 52 from Cannon Falls to Rochester...Line. This country is more rugged than most of Minnesota, quite scenic, and fun to explore with the aid...clearly shows the Red Wing Fault where the buff-colored St. Lawrence and Jordan Formations are faulted down |  | | Report (issue) | | ,. , .. .. Minnesota Geological SUrver LIBRARY MINNESOTA .. GEOlO~ SURVEY UN,VE"" Of . . .saTA...---------- BULLETIN NO.6. 'ยฃHl~ IRON ORES 0]' MINNESOTA, THEIR GEOLOGY, DISCOVERY, ORIGIN, AND DEVELOPMENT...published at their own expense,] THE IRON ORES OF MINNESOTA. CONTENTS. Pa,gc. Preface ....................the earlier Minnesota reports have said ............... . (1). The magnetites of the Vermilion schists ....................... . (b). Qualities of the Vermilion magnetites (1). Chemical .................... |  | | Journal (issue) | | ................................. 300 SOUDAN, MINN., IRON MINE ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท-...Sig!o XX which was to be our headquarters for the mine examination work. The Potino Mines and Enterprises...Miraflores which is about one mile from Uncia. As the mine was worked to greater depths, an adit was drilled...an Indian woman off of the sorting tables at the mine. She had cooked for another white man at some former...laboratory assistants were taken from the mill and mine. Most of them could speak some Spanish but they |  | | Journal (article/letter/editorial) | | the commonpresenceof spheroidalstructureswhich range from about 5 to 40 tx in diameter. The structures...unpigmented chert whosegrain size is within the range of the pigmentedstructures. Therefore, the โข 30...chert, and siderite โขrains within the same size range, are intimately involved in the depositionalfabric...the Soudan in the Vermilion be significantconcerningthe origin of iron-forma- District, Minnesota; iron-formations...(1903) wasoneof the first to suggestan association. Mine), Swaziland. Some, such as Gruner (1922), called |  | | Journal (article/letter/editorial) | | Most of the well preserved fossils in Minnesota are collected in the southeastern part of the state,...lent places to collect. Fossiliferous rocks in Minnesota include those of middle Precambrian (1.8 billion...years old) age. Stromatolites Since most of Minnesota is covered with thick layers of glacial drift...IN MINNESOTA The oldest fossils in the state are early Precambrian bacteria found in the Soudan Iron...that occurs at Ely, Minnesota, and in the R O B E R T E . SLOAN mine in Tower-Soudan State Park. Department |  | | Journal (article/letter/editorial) | | ancient prase mine that had been worked by the Indians many centuries ago. This ancient mine is now known...Eureka Mining District in Yavapai County, Arizona. From this old mine we have a number of gem quality prase...the Blue Creek Mt. Mine, Del Norte County, Calif., which I own. The ore of my mine is very unusual because...Fancher, P. O. Box 63, Ouray, Colo. "At the Brooklyn Mine near Silverton (San Juan Co.), Colo., Frank Richardson...muscovite and biotite mica (books), etc. Have been a mine owner and operator for 30 years." INDIANA โ Harry |
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Soudan Mine, Soudan, Vermilion Range, St. Louis County, Minnesota, USA