 | | 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) | | RANGES Figure 1: Open pit mine on a direct shipping orebody, Mesabi Range. Light gray layer at top is...the walls is oxidized taconite. (Photo courtesy Minnesota Department of Natural Resources.) 96 ROCKS AND...LEPP Geology Department Macalester College St. Paul, Minnesota 55105 About three-fourths of the iron ore...productive iron areas; Minnesota's Mesabi Iron Range has accounted for the bulk of this production. ...within the Lake Superior region are called ranges. Minnesota cities like Hibbing, Virginia, Eveleth, and others |  | | Journal (article/letter/editorial) | | withthoseof thedeepminesof the VermilionRangeof Minnesota andthoseof Michigan, notwithxA paperon the "Replacement...massive,red hematite and brown hematite (crystalline goethite);thesemineralsare intermingledin aboutequalpropo/'tions...breccia, the &ngular fragments of whichare now goethite;thesefragmentsvary for the mostpart from % inch...followinggrade, similarto Old RangeBessemeroresof the Vermilion and MarquetteRanges, Per cent Fe (dried) ......showclearinstances of "re- placement of greenstone byhematite, goethite andcalcite." The presence of disconnected vugswith |  | | Journal (article/letter/editorial) | | of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA b Department of Soil, Water...Water, and Climate, University of Minnesota, St. Paul, Minnesota 55108, USA Department of Civil, Environmental...Engineering, University of Minnesota, c Minneapolis, Minnesota 55455, USA * Corresponding author:...environments, such as mine groundwater seepage, lakes in Western Australia, and acid mine drainage settings...reactions in aqueous suspensions of synthetic goethite (αFeOOH), akaganeite (β-FeOOH), and ferrihydrite |  | | 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 |  | | Report (issue) | | ~-~--- UNIVERSITY OF MINNESOTA lY,IINNESOTA GEOLOGICAL SURVEY G. M. SCHWARTZ. DIRECTOR BULLETIN 34...34 Bibliogr_aphy of Minnesota Geology BY THEODORA G. MELONE AND LEONARD W. WEIS MINNEAPOLIS • 1951...-'- BIBLIOGRAPHY OF MINNESOTA GEOLOGY UNIVERSITY OF MINNESOTA MINNESOTA GEOLOGICAL SURVEY G. M...SCHWARTZ. DIRECTOR BULLETIN 34 Bibliography of Minnesota Geology BY THEODORA G. MELONE AND LEONARD W...W. WEIS MINNEAPOLIS· 1951 THE UNIVERSITY OF MINNESOTA PRESS Acknowledglnents The following bibliography |  | | Journal (article/letter/editorial) | | in Pulaski County, Ark." — letter dated July 31, 1963 from Richard Purifoy, 2101 Orange St., North Little...combination. "Our first stop was the blue barite mine at Hartsel (Park Co.), Colo. Incidently I have lots...of this barite for trading). This is an open pit mine but some digging is required. "We then by-passed...collected at the old Sedalia copper mine. This is an interesting mine but quite a climb to get to the top...the week before two had been killed in town. This mine is also famous for its huge dodecahedral garnets |  | | Journal (article/letter/editorial) | | identifiedfrom the Mesabi, Cuyuna, and Vermilion districts of Minnesota. The distinctive differencesin the...of kaolin minerals present in the Michigan and Minnesota areas are believed to be indicative of differences...occurrencein the ores, are native copper [Mesabi range (29)], magnesiosussexite [Gogebicrange (26)], chromium...district, 5 from the Cuyuna district, and 6 from the Vermilion district. One specimenfrom the Steep Rock district...varietiesin the six districtsof Upper Michiganand Minnesota. For the 62 specimens from Michigan,dickiteand |  | | 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 |  | | 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 |  | | 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) | | 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 — Harry |  | | Journal (article/letter/editorial) | | 103), 8 miles west of Bergen Park, Clear Creek County, Colorado. This highway cuts many pegmatite dikes...pecimen sent in by Mary G. Poole, 33 11 N . W . 106th St., Miami 47, Fla. IOWA -"Enclosed with this letter...we found loose in the soil near Lovtfia (Monroe County), Iowa, while breaking open Septarians looking...radiated groups. It is not roo uncommon to find goethite as inclusions in quartz, barite and calcite xls...should take a good polish. Quinter is in N / E Gove County in N / W Kansas. MAINE—"Have been thinking of sending |  | | Journal (article/letter/editorial) | | Martire Ore Bodies and Magnetites of the Mesabi Range," Ecos. GEOL.,vol. x7, pp. x--x4, x922. 375 Downloaded...Number. B-8 M695A Locality. Daiquiri, Cuba Mesabi Range Type of Deposit. Oxidation Amount of Begins...soq- 95 " so q- ss5 " xo-x5 MxoxxA Vermilion Range Contact action Medium grained s75 " 5-xo...core Mxo3oA Vermilion Range Sedimentary Soudan form. M999A Vermilion Range Sedimentary Soudan Ms6xsA form... Hem. Cuyuna Range Magn. schist Fine grained Sedimentary Some Hem. core Soudan form. on sedimentary |  | | Journal (article/letter/editorial) | | named for convenience (1) Keweenawan trend (age range 1000-l 200 my) (2) Mackenzie trend (1200 my) (3)...ancient rocks, so that for example, in the age range 1000 to 1300 my there is an age uncertainty of more...complex, Ontario; Michikamou anorthosite, Labrador; St. Francois igneous rocks, Missouri; and the Sherman...Arbuckle granites; C is Croker Island complex; M is St. Francois igneous rocks, Missouri; MA is Michikamou...available for three dated igneous rocks in the age range 1704-2060 my, and they are shown in fig. 5. They |  | | Book | | org/details/midwestgemfossil0000zeit Midwest Gem, Great Minnesota, Fossil and Mineral Trails Lakes States Wisconsin...our knowledge and enjoyment of this great owners, mine and quarry operators and science by collecting....Lake Superior agate ever reported was found in Minnesota, and new species of fossils have been collected...first. The states start with the farthest west, Minnesota, and move in sequence to the farthest east, Ohio...shoreline are east of the Mississippi except for Minnesota, where the Mississippi originates in the northcentral |  | | Book (volume) | | 8.W.l; 37 .Jlete1" l>troot, 1,!pJ:1,the.s;Ulr; 1 St. .Aoilz·t>w's Ore11,Wnt, Oardilf; aud B3 ~•orth o...Street, London, S.W.1; 37 Peter Street, Manchester; 1 St. Andrew's Crescent, 0ardilf: and 23 Forth Street...import large quantities of ore to supply their bh~st furnaces, the United States is practica,lly independent...region : including the furnaces in Michigan, Minnesota, Wisconsin, Missouri, Illinois, Indiana, Ohio...I t occupies parts of Michigan, Wisconsin and Minnesota, and continues across the International Boundary |  | | Journal (article/letter/editorial) | | .................................... Marquette range ..................................................Marquetterange,and the Ironwoodformationof the Gogebic range,have beenthe sourceof investigationand speculationfor...nlyfrom the town of Wakefield east of the Vicar mine; however this section includes the area considered...considered by Irving (37) to •betypical'for the range,for he said.:"The chemistryof the process of concentration...probability,like that of the typicaldeposits of the range." The conclusions drawnfrom the presentstudyof oxidationand |  | | Journal (issue) | | has provided siderite crystals, too. The Aggeneys Mine in Cape Province, South Africa, has produced unusual...nicely with purple fluorite. Closer to home, Mont St. Hilaire, the world-class locality in Quebec, has...there. In the United States, the Eagle Mine in Gilman County, CO, is probably the source of the best...(across from Skyline Towers), 3548 South Jefferson St. (intersecting Leesburg Pike), Falls Church, VA Phone:...to me at ti.meredith@aol.com. Siderite from Mont St. Hilaire, Quebec, Canada. Photo: Bob Cooke. Maybe |  | | Report (issue) | | ,. , .. .. Minnesota Geological SUrver LIBRARY MINNESOTA .. GEOlO~ SURVEY UN,VE"" Of . . .saTA...---------- BULLETIN NO.6. '£Hl~ 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 (volume) | | of the Pic de Fon Iron Oxide Deposit, Simandou Range, Republic of Guinea, West Africa I. L. Cope, J....four sheets at a 1:100,000 scale in the Espinhaço Range and has worked widely in Brazil and shield South...Mineração Santa Blandina, and Amarillo Gold, on a broad range of commodities, including gold, diamonds, iron,...is professor of economic geology and teaches a range of undergraduate and graduate classes, many with...the CSIRO in roles including science adviser for mine processing. He previously advised companies such |  | | Journal (article/letter/editorial) | | containing5 per- the Lake Superior area and of Soudan SVOP-IF cent Fe (neuron activationanalysis)with...Precambrian MECS Uda SCOS Roper River SCOS Constance Range SVOP Per Geijer-Kiruna SVOP Kiirunavaara-Kiruna...Savant Lake INT2 Lake St. Joseph SVOP Pickle Crow INT3 Seminoe INT3 Nova Lima SVOP Soudan MECS Cascade-Mozaan...46, 63*, 135 160', 186 14, 90, 189' MECS Bong Range Middle PrecambrianW 55*, 77, 171 • Acronymsfor...a -1- indicates a known time range and -- indicates a possibletime range or uncertainty in age. 4 ß denotesthe |  | | Journal (article/letter/editorial) | | related to the proximity of the coast. The Port-Soudan and Suakin deep sediments consist of biodetrital...ratio equal to 0.707809. In the case of the Port-Soudan study, Fig. 1 clearly shows an increase of the...although its sediments consist of ferriferous (goethite, hematite, lepidocrosite) and manganiferous (manganite)...Atlantis II deep O Thetis deep -.-&-- Port-Soudan deep Out off trough iiiiiiN 'iiiiiiiiii~ii:...particules and detrital materials. The Suakin and Port-Soudan deep sediments can be interpreted as a result of |  | | Report (issue) | | ______ Iron oxides __ _______________________ Goethite (a-FeO (OH) ) and limonite _ Lepidocrocite (y-FeO(OH)...TABLES 1-4. Analyses of 1. Separated limonite (goethite) ooliths from two Mesozoic W3 ironstones.-------...________________ 8-19. Analyses of 8. Oolitic limonite (goethite) iron18 stone. _____________________ 9. Hematite-rich...depositional or diagenetic origin, have a wide range of physical and chemical properties, in part because...the form of goethite (limonite), hematite, and magnetite; siderite, with a substantial range in amounts |  | | Journal (article/letter/editorial) | | within the oxides and hydroxides (especially goethite) that replaced sulfides. Gold occurs as fine disseminations...barite, quartz, pyrite, chalcopyrite, tennantite goethite, galena, arsenopyrite, Cl-Br-silver, and covellite...extensive (Whiteman, 1971; Fletcher, 1985). At the Oyo mine, As values were reported to parallel those of gold...du district du district d'Ariab (Red Sea Hills, Soudan). Historique de la decouverte, cader geologique...Cu, Pb, Zn, Ba, Mn, de la Plaine d' Allaikaleib (Soudan): Modeles exhalatifs-sedimentaires dans le Proterozoique |
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