 | | Journal (issue) | | at Silver Reef in southwestern Utah’s Washington County (figure 1) is a very unique occurrence. The high-grade...perfect bound for just: $35.00 Postage $5.00 in the USA; $23 for foreign. Excalibur Mineral Corp Tel: 434-964-0875...shipping. Figure 5: Native copper crystals from Michigan, size 7 cm. In the late 1800’s, two prominent...exceptional Kongsberg silver and Langban native lead, Michigan native copper, Freiberg argentopyrite, Leadhills...book filled with historical work involving Oxford County, describing and intertwining its minerals, miners |  | | Journal (article/letter/editorial) | | from Metamorphic and Igneous Rocks near Iron Mountain, Michigan by L. T. ALDRICH, G. L. DAVIS, and H. L...determined for minerals from an area in northern Michigan about 35 miles square. Granites, pegmatites, and...biotite, and feldspar, and U-Pb and Th-Pb ages for zircon. It was anticipated that we would learn from the...muscovite K-Ar, biotite Rb-Sr, zircon U239-Pb2°8, zircon Th-Pb208, zircon U235-Pb207, muscovite Rb-Sr,...patterns of mineral ages. The area around Iron Mountain, Michigan, was particularly suitable for such a study |  | | 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...of the Chocolay Group in the Lake Superior area, USA and the Gordon Lake Formation of the correlative...units of the Chocolay Group in Wisconsin and Michigan and the Mille Lacs Group of Minnesota. Our objectives...southern shore of the Lake Superior in Michigan and Wisconsin, USA. The Chocolay Group was likely deposited |  | Childress, Tristan M., Simon, Adam C., Day, Warren C., Lundstrom, Craig C., Bindeman, Ilya N. (2016) Iron and Oxygen Isotope Signatures of the Pea Ridge and Pilot Knob Magnetite-Apatite Deposits, Southeast Missouri, USA. Economic Geology, 111 (8) 2033-2044 doi:10.2113/econgeo.111.8.2033 | Journal (article/letter/editorial) | | Geologists, Inc. Economic Geology, v. 111, pp. 2033–2044 Iron and Oxygen Isotope Signatures of the Pea Ridge and...Magnetite-Apatite Deposits, Southeast Missouri, USA* Tristan M. Childress,1,† Adam C. Simon,1 Warren...Sciences, University of Michigan, 1100 North University Ave., Ann Arbor, Michigan 48109-1005 2 U.S. Geological...and these results are compared with data for other iron oxide-apatite deposits to shed light on the origin...Francois Mountains terrane in southeast Missouri, USA, consists dominantly of early Mesoproterozoic (~1 |  | | Journal (article/letter/editorial) | | Racine (Scovil 1994), the pegmatites of Florence County (Koehier 1989) and the Wausau area (Falster 1987)...and datolite) found in the Upper Peninsula of Michigan also occur in Wisconsin. The major difference...cheralite, pyrochlore, and zircon), particularly in the Wausau area of Marathon County (Falster 1987). Middle...and iron formations. A major iron range, the Gogebic Range, extends into Wisconsin from Michigan. The...out. Most are gneisses and amphibolites; some are iron formations, such as that worked near Black River |  | | Report (volume) | | Geology of the Lake Mary Quadrangle Iron County, Michigan By RICHARD W. BAYLEY GEOLOGICAL SURVEY...cooperation with the Geological Survey Division Michigan Department of Conservation UNITED STATES GOVERNMENT...1919Geology of the Lake Mary quadrangle, Iron County, Michigan. Washington, U. S. Govt. Print. Off., 1959...Division, Michigan Dept. of Conservation. Bibliography: p. 108--110. 1. Geology-Michigan-Iron Co. Iron...Iron County, Michigan. (Series) QE75.B9 no. 1077 ----Copy 2. 1. Title: Lake Mary quadrangle, 557.74975 |  | | 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 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...___________________ _ Vulcan Iron-Formation _____________ _ Traders and Curry Iron-Bearing Members_ Brier Slate |  | | Journal (article/letter/editorial) | | Michigan Mineralogy: A LOCALITY INDEX TOM MORRIS, JR. 4553 Shenandoah Allen Park, Michigan 48101 Tom...occurrences. These localities have been listed by county; and, strictly for convenience, the list has been...compiling this information was The Mineralogy of Michigan (Heinrich, 1976), which should be consulted by...locality labeling of Michigan specimens. It should be pointed out that the list of Michigan mineral localities...None theless, with the aid of a good state or county map, plus local inquiries, the list could be helpful |  | | 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 |  | | Report (issue) | | . . . . . . . . . . . . . . . . . . . . . . 1 County Listings. . . . . . . . . . . . . . . . . . . .... . . . . . . . 4 Mineral Localities Listed by County . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . 7 Beaver County . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . 7 Box Elder County . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . 10 Cache County . . . . . . . . . . . . . . . . . . . . . . . |  | | Report (issue) | | Stratigraphy of Pre-Keweenawan Rocks in Parts of Northern Michigan GEOLOGICAL SURVEY PROFESSIONAL PAPER 314-C Prepared...cooperation with the Geological Survey Division, Michigan Department of Conservation Stratigraphy of...of Pre-Keweenawan Rocks in Parts of Northern Michigan By HAROLD L. JAMES SHORTER CONTRIBUTIONS GEOLOGICAL...cooperation with the Geological Survey Division, Michigan Department of Conservation UNITED STATES GOVERNMENT...group______------___ Dunn Creek slate__________ Riverton iron-formation ______ Hiawatha graywacke.________ Stambaugh |  | Tunnell, Bolorchimeg N., Locmelis, Marek, Seeger, Cheryl, Mathur, Ryan, Dunkl, István, Sullivan, Brandon, Lori, Lisa (2021) The Pilot Knob iron ore deposits in southeast Missouri, USA: A high-to-low temperature magmatic-hydrothermal continuum. Ore Geology Reviews, 131. 103973pp. doi:10.1016/j.oregeorev.2020.103973 | Journal (article/letter/editorial) | | com/locate/oregeorev The Pilot Knob iron ore deposits in southeast Missouri, USA: A high-to-low temperature ...Rolla, MO, USA Missouri Department of Natural Resources, Missouri Geological Survey, Rolla, MO, USA Juniata...Juniata College, 1700 Moore St, Huntingdon, PA 16652, USA d Sedimentology and Environmental Geology, Geoscience...Doe Run Company, PO Box 500, Viburnum, MO 65566, USA b c A R T I C L E I N F O A B S T R A C T Keywords:...Southeast Missouri IOA/IOCG deposits Sedimentary iron formation Iron isotopes Critical minerals Apatite U-Pb geochronology |  | | Report (volume) | | Geology of the Kiernan Quadrangle Iron County Michigan By JACOB E. GAIR and K. L. WIER GEOLOGICAL...PLATE 1. Geologic map of Kiernan quadrangle, Iron County, Mich. 2. Map showing relationship of magnetic...geology in vicinity of Michigamme Mountain, Iron County, Mich. 3. Geologic cross sections and magnetic...profiles in vicinity of Michigamme Mountain, Iron County, Mich. CONTENTS v PLATE 4. Magnetic pro~s...'i:ron County, Mich. 5. Total-intensity aeromagnetic profiles across Kiernan quadrangle, Iron County, Mich |  | | Report (issue) | | region underlie parts of Minnesota, Wisconsin, and Michigan, very near the geographic center of the North...of geosynclinal affinity and includes the great iron-formations of the region. These rocks are bounded...of Minnesota, northern Wisconsin, and northern Michigan, very near the geographic center of the North...Minnesota (Morey, 1983a,b), and in Wisconsin and Michigan (Sims and Peterman, 1981, 1983; Sims and others...Stratified rocks of the Animikie basin-Includes the major iron-formations of the region (Age,:::::: 2,100-1,860 |  | | Journal (article/letter/editorial) | | Introduction DURINGthe past15 years,studiesof the major iron oredistricts andcopperdistrictsin theLakeSuperior...tectonicevolutionof the middlePrecambrian basin in which the great iron-formations were formed. Finally, I will comparethe...coherentregionalpicture nesota and in northern Wisconsin and Michigan. (Precambrian X) rocksform consistentwith the...geologyin MiddlePrecambrian Minnesota and northern Michigan. Recently pub- the surfacebedrockin much of easternMinnesota...geochronologyof northern and in northern Wisconsin and Michigan. Except in centralWisWisconsin(Van Schmuset al |  | Parnell, John, Mark, Darren F., Frei, Robert, Fallick, Anthony E., Ellam, Rob M. (2014) 40Ar/39Ar dating of exceptional concentration of metals by weathering of Precambrian rocks at the Precambrian–Cambrian boundary. Precambrian Research, 246. 54-63 doi:10.1016/j.precamres.2014.02.012 | Journal (article/letter/editorial) | | of granites and pegmatites, and metasedimentary iron formations (Duffin, 1989; Avigad et al., 2005). These...chemistry. Iron deposits were exposed on the surface in many parts of the world, including USA, Canada,...Sweden, Iran and West Africa. So much Precambrian iron ore was eroded during the transgression that the...(Murphy and Ohle, 1968; Hausel, 1989). Many of these iron deposits are gold-bearing, some are strongly phosphatic...copper in Wisconsin (May and Dinkowitz, 1996), Michigan (Bornhorst, 2002) and Quebec (Sinclair and Gasparrini |  | | Journal (article/letter/editorial) | | of the Taum Sauk Caldera, southeastern Missouri, USA G. R. LOWELL1,* 1 2 AND P. D. NOLL JR2 Department...Missouri State University, Cape Girardeau, MO 63701, USA Actinide Analytical Chemistry, C-AAC, MS G740, Los...Alamos National Laboratory, Los Alamos, NM 87545, USA ABSTR ACT Stromatolitic carbonate in moat-fill...deposit appeared on 16th September, 1897 in the Iron County Register newspaper announcing discovery of Au...igneous rocks, extends in the subsurface from Michigan to southeastern Missouri (Lidiak et al., 1993) |  | | Journal (article/letter/editorial) | | or equivalent Middle pre-Cambrian(Huronian) rocks Iron-formation shown in solid black Staurolite or equivalent...MENOMINEE GENERALIZED GEOLOGIC MAP OF NORTHERN MICHIGAN, SHOWING METAMORPHIC ZONES BULLETIN OF THE GEOLOGICAL...REGIONAL METAMORPHISM IN THE PRECAMBRIAN OF NORTHERN MICHIGAN BY HAROLD L. JAMES ABSTRACT Precambrian rocks...an area of about 7500 square miles in northern Michigan. Of this area, approximately 3300 square miles...the Huronian sedimentary rocks, especially in the iron formations and the graywackes and slates, and in |  | | Journal (issue) | | headframe in Wisconsin is located in Iron County between Pence and Iron Belt, Wisconsin. The Plummer Mine...Penokee Iron Range, later known as the Gogebic Iron Range in northern Wisconsin and the UP of Michigan. separate...transported to the port of Ashland, Wisconsin where the iron ore was loaded into ore boats for shipment to the...Historic Places. The presence of iron-rich rocks in the Penokee Iron Range was noted as early as 1848...Iowa, Wisconsin and Minnesota. In 1912, the Oliver Iron Mining Company began mining operations at the Plummer |  | | Report (issue) | | subtidal-shelf deposition of Superior-type banded iron-formation . Richard W. Ojakangas Lower Proterozoic...arranged geographically, from the upper peninsula of Michigan and adjacent Wisconsin, to north central Wisconsin...Precambrian rapakivi massif in north Wisconsin, USA: Precambrian Research, v. 7, p. 287-324. Blackwelder...early Proterozoic (Precambrian X) of northern Michigan [abs.]: Geological Society of America, Ab¬ stracts...north and for chemical sediments, including the vast iron-formations for which the region is famed. The central |  | | 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____ |  | | | | fractions. The more mafic fractions with darker iron- and magnesium-rich minerals crystallize first and...central silicon atom. kyanite, topaz, titanite, zircon, amphibole, pyroxene, chlorite, talc, clay, chrysotile...world. The Shield’s rich deposits of copper, nickel, iron, lead, zinc, gold, silver, cobalt, uranium, platinum...a : jagged irregular surface like that of broken iron. Test: Colour and the fact that it is sectile. Similar...nugget recorded is from Carson Hill, California, USA, weighing 72.78 kg. Transylvania, Romania; Roraima |  | | 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 |  | Slack, John F., Corriveau, Louise, Hitzman, Murray W. (2016) A Special Issue Devoted to Proterozoic Iron Oxide-Apatite (±REE) and Iron Oxide Copper-Gold and Affiliated Deposits of Southeast Missouri, USA, and the Great Bear Magmatic Zone, Northwest Territories, Canada: Preface. Economic Geology, 111 (8) 1803-1814 doi:10.2113/econgeo.111.8.1803 | Journal (article/letter/editorial) | | Special Issue Devoted to Proterozoic Iron Oxide-Apatite (±REE) and Iron Oxide Copper-Gold and Affiliated...Affiliated Deposits of Southeast Missouri, USA, and the Great Bear Magmatic Zone, Northwest Territories, Canada...special issue emphasize iron oxide-apatite (IOA) ± rare earth element (REE) and iron oxide-copper-gold (IOCG)...the world. Both North American terranes contain iron oxide-alkali alteration zones that formed during...also present within the footprints of the regional iron oxide-alkali alteration systems. Mineralization |
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