 | | Report (issue) | | Geology and Ore Deposits of the Cuyuna North Range Minnesota GEOLOGICAL SURVEY PROFESSIONAL PAPER...407 Geology and Ore Deposits of the Cuyuna North Range Minnesota By ROBERT GORDON SCHMIDT GEOLOGICAL...1924Geology and ore deposits of the Cuyuna North range, Minnesota. Washington, U.S. Govt. Print. Off....87-91. l.Geology Minnesota Cuyuna North range. 2.Ore-deposits Minnesota Cuyuna North Range. S.Iron ores Minnesota...Minnesota Cuyuna North range. I.Title: The Cuyuna North range, Minnesota. (Series) For sale by the Superintendent |  | | Report (issue) | | GEOLOGY OF THE CUYUNA DISTRICT, MINNESOTA: A PROGRESS REPORT UNIVERSITY OF MINNESOTA MINNESOTA GEOLOGICAL...DIRECTOR BULLETIN 36 The Geology of the Cuyuna District, Minnesota A PROGRESS REPORT BY FRANK F. GROUT...WOLFF, SR. MINNEAPOLIS· 1955 THE UNIVERSITY OF MINNESOTA PRESS PRINTED AT LUND PRESS, INC., MINNEAPOLIS...mines of the Cuyuna district in considerable detail. About 1940 a brief synopsis of Cuyuna geology was...the University of Minnesota. In 1941 Mr. Grout started active field work on the Cuyuna largely in connection |  | | Journal (article/letter/editorial) | | manganlferous iron ores; especially those of the Cuyuna Range .................................... General...the Departmentof Geologyof the Univer- sityof Minnesota, for helpfulsuggestions andcriticisms; to Mr....63.• 4.7-4.8 2-4 I. Pyrolusite, Mangan m•ne, Cuyuna Range. Group of soft radiating needles; structure...) III. Prismatic needles of pyrolusite, Crimora mine, Va. Polished surface shows finely granular quartz...between the grains of pyrolusite. IV.'Pyrolusite. Minnesota. Specimen No. 5x8, Mineralography collection |  | | Journal (article/letter/editorial) | | DISTRICT, ROCKS CENTRAL ROBERT IN THE MINNESOTA CUYUNA • G. SCHMIDT CONTENTS PAGE Abstract ....ABSTRACT The ore-yielding main iron-formation of the Cuyuna district is stratigraphically overlain by approximately300...INTRODUCTION THe. geologyof the North range,Cuyunairon district,Minnesota(Fig. 1), hasbeenstudiedby the...DISTRICT• • •0 • EMILYDISTRICT CUYUNA SOUTH • Duluth • INORTH t•'•,• RANGE •• I"•'• • I \ / Wl...Index map of Minnesotashowinglocationof the North range, Cuyuna district. titania in the mounts normalfor |  | | Journal (article/letter/editorial) | | 1965 IRON PHYLLOSILICATES OF THE CUYUNA DISTRICT IN MINNESOTA R. L. Bre.rB, Minneapolis Metallwrgy...of the Trommald iron-formation in the Cuyuna district, Minnesota, showed the following minerals in order...order of decreasing abundance: Mn-Mg-siderite, stilpnomelane, minnesotaite, magnetite, quartz, two unidentified...vugs in goethite ore. Recent publications on the Cuyuna district are those of Schmidt (1955, 1958,1959...Fellowship in cooperation with the University of Minnesota to examine further the iron phyllosilicate minerals |  | | Journal (article/letter/editorial) | | States are in the Lake Superior region, in Minnesota, Wisconsin, and Michigan. Thinner units occur...iron-formation stratigraphy,however, differ greatly from one range to another; it is likely that each area of iron-formation...contemporaneous sediments. The iron-formations range in thicknessfrom about 100 feet to more than 2,000...content of unoxidized rock typically is in the range of 25 to 35 percent. Beds of iron-formation as much...Michigan in the youngerBaraga and Paint River Groups. Siderite-chertis the dominant rock type, and the iron-formationsare |  | | 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) | | 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:...agate, (banded, various colors), jasper. BIBB COUNTY MACON: at Holton Quarry, 7½ mi. NWagate; N |  | | Report (volume) | | Tufts College, Mass. Minnesota........Prof. W. H. Emmons, University of Minnesota, Minneapolis. Mississippi...State Museum, Albany. North Carolina.. .Dr. Joseph Hyde Pratt, Chapel Hill. North Dakota... .Dr. A. G....See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson |  | | Report (volume) | | ............................................ Minnesota.......................................................... North Carolina. .......................................................... North Dakota......1888. Branner, J. C., The zinc and lead region of north Arkansas: Arkansas Geol. Survey Ann. Kept, for 1892...World's Fair edition, 1904. Genth, F. A., Minerals of North Carolina: U. S. Geol. Survey Bull. 74, 1891. Shannon...consulted may be mentioned Gems and precious stones of North America, by G. F. Kunz; Minerals of economic value |  | | Book (volume) | | grading to 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper...⎯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...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Book (volume) | | grading to 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper...⎯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...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Journal (article/letter/editorial) | | the information about cinnabar from the Red Devil Mine of Sleetmute, Alaska, and thought you might like...specimens of iridescent, brown siderite have been found in the Junction copper mine, Bisbee, Cochise Co., Ariz...in a road cut on Little Tujunga Road, 8.8 miles north of its junction with Foothill Blvd. in Pacoima,...sphalerite (gem quality) from the famous Big Four zinc mine near Heeney, Summit Co., Colo. Some small specimens...us — very nice material. "From the Big Four zinc mine near Heeney, Summit Co., Colo., by the Green Mountain |  | | Journal (article/letter/editorial) | | with vesuvianite, magnetite and calcite. "Th's mine goes back to the 1870's and 80's—and worked off...pounds, have been found in the Copper Queen Copper mine in Bisbee, Cochise Co., Ariz. ARKANSAS—A large,...Diamonds is the only genuine diamond crater in North America. It is a tourist attraction and opened year-round...Crestmore, Riverside Co., Calif. 462 "The ores of the mine are of interest to collectors for their bright colors—a...was reported in 1843 at Williams Ferry in Hall County by Dr. Stevenson while panning for gold. The stone |  | | Book (volume) | | locations in Idaho, lowa, Kansas, Minnesota, Missouri, Montana, Nebraska, North Dakota, — ; Oregon, South...Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, and...QUANDRANT Idaho, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, North Dakota, Oregon, South Dakota...Backwaters Blue Jacket The King Snake The Owls of North America The Conquerors Savage Journey The Court-Martial...of Terror The Frontiersmen The Wading Birds of North Gateway to Empire America The Great Auk The |  | | Journal (issue) | | AGARDITE(Y) Collected in 1987 from Marke Valley mine, Cornwall. Identified by David Green and photographed...FLUORITE Collected about 15 years ago from Yew Tree mine in Weardale. A beautiful combination of the two...coastal site in Lanzarote about 2 miles to the north of Playa Quemada. Small water clear crystals showing...Collected on a SMLS trip to the north of England in 1998 from Eagle Crag mine. A site memorable for a 3 mile...mile walk across the hills, entry into the mine through an oil drum through a cascading stream, a climb |  | | Journal (issue) | | Number Three Articles The Tonopah-Belmont mine, Maricopa County, A rizona by G. B. Allen & W. Hunt 139...........221 COVER: ANGLESITE from the Touissit mine, Morocco. The large crystal measures 4.5 cm. This...Henry Truebe, Chairman (Dallhold Resources, 2002 North Forbes Blvd., Tucson, AZ 85745), with your topic...Chichibu mine” (by Kuniaki Kato and Hidemichi Hori), “ Collecting report: Hikagezawa gold mine, Shizuoka...Avenue Sun City, Arizona 85351 he Tonopah-Belmont mine is a micromounter’s paradise. An un common suite |  | | Journal (article/letter/editorial) | | concentrations of glauconitic clay pellets. Bedded siderite concretionary carbonates were precipitated by...is a fair analogue of the Eocene of the southern North Sea), petrographic analysis of major mudrock formations...map. 1989). The irregular coastline ran roughly north-south through the western part of the basin at times...above (MIS in Fig. I). Six concretions and three siderite-cemented beds were also sampled (Fig. 2). Polished...sand and silt, smectite, illite, glaucony and siderite, the London Clay by smectite and illite clays |  | | Journal (article/letter/editorial) | | ALABAMA—Cherokee County is' in northeastern Alabama. In the central part of Cherokee County is the little...10-yr. old subscriber, Buddy Stewart. "Cherokee County has a wide variety of minerals ranging from those...mica, quartz. Limestone also occurs. Cherokee County is full of minerals, so Buddy informs us, and to...around Rock Run, in the southeastern part of the county, and was mined extensively in recent years. The...over Cherokee County. "Lots of Indian relics are found too." A map of Cherokee County, prepared by Buddy |  | Huggett, J.M., Gale, A.S., Hazell, C. (2018) Early diagenesis of the lower Vectis Formation, Wealden Group Lower Cretaceous, Barremian), Sandown, Isle of Wight. Proceedings of the Geologists' Association, 129 (6) 782-789 doi:10.1016/j.pgeola.2018.08.004 | Journal (article/letter/editorial) | | Environmental Sciences, University of Portsmouth, Burnaby Rd., Portsmouth, Hampshire, PO1 3QL, UK Northumbria...the pyrite occurred, prior to cementation by Mn siderite. All further concretion cementation occurred within...lenses, pyritic concretions, and a 0.2 m thick siderite cemented siltstone is full of moulds of the gastropod...fractures is overgrown or replaced by baryte. Mn siderite with a mean composition of (Ca0. 1Mn0.14Fe0.75)CO3...Cowleaze Chine Member, Yaverland, Isle of Wight. Siderite concretions are coloured yellow. “A” and “B” denote |  | | Journal (article/letter/editorial) | | Staurolite Stilbite Zoisite BRISTOL COUNTY The major portion of Bristol County shows sedimentary rocks consisting...Hill area of Providence County. The Bristol area, in the vicinity of portsmouth Ferry, was famed years...druses. KENT COUNTY Fringes of sedimentary rocks are found in the east section of this county in contact...Moosup Valley,which runs northward into Providence County, in this discussion.. The rocks of this extreme...Franklin Society. a This is the old South Foster Gold mine locality which is said to have produced gold, chiefly |  | | Journal (article/letter/editorial) | | com/locate/pgeola Additional evidence for very large wing-span pterosaurs in the Wessex Formation (Early Cretaceous...and Environmental Science, University of Portsmouth, Portsmouth, PO1 3QL, UK 6 Battlemead, Swanage, Dorset...complex. A morphometric analysis suggests an original wing span of approximately 5.6 m. With an early Barremian...discovered in rock-fall debris on the beach about 1.5 km north west of Chilton Chine on the southwest coast of... R.A. Coram, Additional evidence for very large wing-span pterosaurs in the Wessex Formation (Early Cretaceous |  | | Catalog/List | | association. 2x1-tx1t", £11.00 BARYTES. Force Crag Mine, nr. Keswick, Cumberland. Select, cluster of sharp...1x1", £4.5Op 2 11. BEUDANTITE. Penberthy Croft Mine, St. Hilary, Cornwall. Sharp lustrous light coloured...display. 4ix3tx21'" , £11.00 16. CALCITE. Millclose Mine, near Matlock, Derbyshire. Fine large doubly terminated...specilimen. 6xJ.}x2i", £14.00 17. CALCITE. Levant Mine, Pendeen, Cornwall. Choice creamy-white rosettes...1tx1-t", £8.00 19. CASSITERITE. Lady Gwendoline Mine, Germoe, Cornwall. Very rich heavy deep brownish |  | | Journal (article/letter/editorial) | | specimens from the Red Devil Mine, copper nuggets from the Kennecott mine, etc. and I can assure you that...the numerous tungsten mines in the Darwin, Inyo County, California, area."—note from James H. Richardson...on the south bank of the Etowah River, in Dawson County, Ga. Chatoyant masses of olive-gray tourmaline...found this specimen at Graveyard Point In Owyhee County, Idaho, in 1957."—on label accompanying the agate...beneath a 5 foot vein of coal occurs at a coal strip mine near Melrose, Monroe Co., Iowa. Found by Michael |  | | Report (chapter) | | and Environmental Sciences, University of Portsmouth, Portsmouth PO1 3QL, UK 2 Département des Sciences...partial vertebral column and associated incomplete wing bones. The juxtaposition of the bones suggests that...Kensington, London SW7 5BD, UK; IWCMS, Isle of Wight County Museum Service, Dinosaur Isle, Culver Parade, Sandown...weathering suggests cementation by ferroan calcite or siderite. The bones are all dark to very dark brown on...vertebrae also in articulation; and fragmentary wing bones including a distal left ulna, a right proximal |
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