 | | Report (issue) | | DEPOSITS OF THE MATCHWOOD QUADRANGLE, ONTONAGON COUNTY, MICHIGAN By Robert F. Johnson and Walter S. White...DEPOSITS OF THE MATCHWOOD QUADRANGLE, ONTONAGON COUNTY, MICHIGAN ' ~ By Robert F. Johnson and Walter...Matchvood quadrangle is in central Ontonagon County, just west of the Ontonagon River and its Middle Branch...carried out in Ontonagon and Gogebic Counties by the Geological Survey Division of the Michigan Department...Steffans, District Ranger, U.S. Forest Service, Bergland, directed Johnson to several old exploratory workings |  | | Journal (article/letter/editorial) | | GEOCHRONOLOGY OF THE KEWEENAWAN WHITE PINE, MICHIGAN • SAMBHUDAS CHAUDHURI AND GUNTER 8 ROCKS...suites of felsite from the White Pine area of Michigan indicate dates ranging from 978 q- 40 m.y. to...NonesuchShale. INTRODUCTION T•4E Keweenan peninsulaof Michigan has been an important producer of copperfor more...conglomerates. In the vicinityof White Pine, Ontonagon County,chalcocite and minornativecopperoccurin ,thelower...been studied by Alex Brown of the University of Michigan. GEOCHRONOLOGY OF THE KEWEENAWAN ROCKS 1013 |  | | 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) | | (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 (volume) | | Nomenclature within the Keweenawan Supergroup of Northern Michigan Geochemistry, Petrography, and Volcanology of...the Portage Lake Volcanics, Keweenaw Peninsula, Michigan U.S. GEOLOGICAL SURVEY BULLETIN 1970-A,B AVAILABILITY...Nomenclature within the Keweenawan Supergroup of Northern Michigan By WILLIAM F. CANNON and SUZANNE W. NICHOLSON...the Portage Lake Volcanics, Keweenaw Peninsula, Michigan By SUZANNE W. NICHOLSON Chapters A and B are issued...nomenclature within the Keweenawan Supergroup of northern Michigan / by William F. Cannon and Suzanne W. Nicholson |  | | Catalog/List | | radial groups on limonite ....... . Utah Toelle County, Gold Hill, Gold Hill mine --=.rransparent micro... AJOITE Copper aluminum silicate' Arizona Pima County, Ajo, New Cornelia mine Sky blue micro xls and...quartz . ALTAITE Lead telluride • Colorado Saguache County, Klondike mine Brilliant metallic tin white cleavable...sodium calcium uranium carbonate. Utah San Juan County, Moab ~ellow to yellow-green ¼x¼" single rhombohedral...ANNABERGITE Hydrated nickel arsenate Nevada Churchill County, Cottonwood Canyon Rich apple green masses altering |  | | Journal (article/letter/editorial) | | Rock-Hosted Stratiform Copper Deposit, Upper Peninsula, Michigan Theodore J. Bornhorst1,† and William C. Williams2...Mineral Museum, Michigan Technological University, 1404 E. Sharon Avenue, Houghton, Michigan 49931 2 Orvana...Copperwood is located in Gogebic County, Upper Peninsula, Michigan, within the Porcupine Mountains copper...discovery of native Cu in the western Upper Peninsula, Michigan, during the 1840s led to the first mining boom...1995). Copper mining in the Upper Peninsula of Michigan has been dormant since the shutdown of the White |  | | Catalog/List | | radial groups on limonile ........... Utah Toelle County, Gold Hill, Gold Hill mine ~ransparent micro crystals...lapis AJOITE Copper aluminum silicate Arizona Pima County, Ajo, New Cornelia mine Sky blue micro xls and...cerium aluminum silicate California Los Angeles County, Pacoirna Canyon Large black tabular crystals in...basic sulfate of aluminum and potassium Utah .Piute County, Tushar Mountains, Marysvale ----i'>ink crystalline...crystal vugs ALTAITE Lead telluride Colorado Saguache County, Klondike mine Cleavage plates in quartz with pyrite |  | | Journal (article/letter/editorial) | | "leucocratic, partly autometamorphosed, hypabyssal, augite and orthopyroxene bearing (or pigeonite), nonporphyritic...albite feldspars, associated with (mostly altered) augite and biotite (the latter is possibly an alteration...(labradorite and bytownite), clinopyroxenes (diopsidic augite) and orthopyroxenes (bronzite); microprobe analyses... - - : Die Eruptivgesteine des Lembergs (Nahe-Bergland) und ihre LagerungsverhSltnisse. - - Mz. geowiss |  | | Journal (article/letter/editorial) | | Dept., Western Reserve University, Cleveland/Ohio, USA, and Dr. H. VOLLSTXDT, Geomagnetisches Institut der...basalts. The principal melanocratie minerals are augite, olivine and magnetite, the leucocratie components...supposition is strengthened by the oecurence of a Ti-augite in rocks from this outcrop. The remaining magnetic...Stratigraphie des Sehilfsandsteins im ost-lippischen Bergland (Lithostratigraphische Untersuehungen in Sandstein-Folgen |  | | Journal (issue) | | Hamburg: ♦ Harvard Mineralogical Museum, Boston (USA) Erstmals werden in Europa in dieser Schau einmalige...Privatsammler. • Die Topase aus dem Topaz-Valley, Utah (USA) John Holfert, erfolgreicher Topas-Schürfer aus dem...und führte auch zahlreiche bekannte Namen aus den USA auf. Inzwischen ist die norwegische Polizei dabei...den USA Ermittlungen durchzufüh- ren; die Behörden in Norwegen vermuten, daß allein in den USA für mindestens...Teilnahme des legendären Harvard-Museums aus Boston/USA an der „mineralien '99" in Hamburg (3.-5. Dezember} |  | | Journal (article/letter/editorial) | | 10 Diopside Ti (a.p.f.u) 0.08 Hedenbergite Augite 1000 C 1200 C 0.06 Non-orogenic field 0.04 0...occasionally altered to sericite, epidote, and zoisite. Augite is partly replaced by chlorite. Ophitic and subophitic...olivine gabbro, which is dominated by clinopyroxene (augite), plagioclase, and amphibole, in addition has pseudomorph...Na2O, SiO2, TiO2, and FeO (Table 2). It is Ca rich augite (Wo36–40En46–50.9Fs12–16; Table 2; Fig. 3c) and...2011. Basische Gangintrusionen im Oberlausitzer Bergland, Ostsachsen. Berichte der Naturforschenden Gesellschaft |  | | Catalog/List | | . AJOITE Copper aluminum silic:ue Ar120na Pima County. Ajo. l\ew Cornelia mine Skyblue mkro crysuls and...cerium aluminum sllicalc Cali!ornia Los Angeles County, Pacoima Canyon Lir(:e black tabular crystals in...50 ALTAITE Lead tellurlde New Mexico Oona Ana County, Hilltop mine Rlch øllvery cleu•ages and \'eins...magnesium titnnium alunlino-si!icale Arizona Mohave County, near Kin...JADE Iron magnesium silicatc Californi.1 Monlerey CountY, Plaskett Point Gray-green waler worn l>e:ich pebbles |  | | Journal (issue) | | Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Ml Andrew C. Roberts Geo!. Surv. of...Articles History and minerals of The Geysers, Sonoma County, California .....................................1852 to the 1920’s, is located in northern Sonoma County about 145 km north of San Fran cisco, California...(1970). The Mayacmas Mountains of northern Sonoma County are underlain by rocks of the Jurassic-Cretaceous...deposits of the western Mayacmas district, Sonoma County, California. California Journal o f Mines and Geology |  | | Journal (issue) | | of Ranges II and III, Shipton Township, Richmond County (Latitude 45°46'25", Longitude 71°57'12"), about...while the alteration of the monoclinic pyroxenes, augite and diopside, released calcium and aluminum. These...ultramafic and associated rocks that include olivine, augite and enstatite as well as some interesting accessory...QUARTZITE, ARIZONA 85346 MICROMOUOT MINERALS FROM MICHIGAN COPPER NIEVES Hammersley's Minerals closed W...Mineralogical Studies, 7808 Division Drive, Battle Creek, Michigan, 49017 DIG Y O U R O W N ! L is t o f 2 6 5 n |  | Götze, Jens, Schertl, Hans-Peter, Neuser, Rolf D., Kempe, Ulf, Hanchar, John M. (2013) Optical microscope-cathodoluminescence (OM–CL) imaging as a powerful tool to reveal internal textures of minerals. Mineralogy and Petrology, 107 (3) 373-392 doi:10.1007/s00710-012-0256-0 | Journal (article/letter/editorial) | | certain microscopic techniques (e.g., study of Ti-augite under crossed polars) CL reveals sector zoning...light/CL pair of an albite crystal from Spuce Pine, USA; the homogeneously appearing crystal clearly shows...Korallenoolith (Malm) im Südniedersächsischen Bergland. Bochumer Geologische und Geotechnische Arbeiten |  | | Book | | crystals of native copper are found at Lake Superior, Michigan. The most common crystal forms are the octahedron...Rhine, at Bisbee, 5 Native Copper Aio, Arizona/USA Original size 28 x 53 mm 18 Arizona, and in Namibia...copper of the Keweenaw Peninsula, Lake Superior, Michigan, which was of great importance in the past, was...3.6 million tons. 11 Galena Tristate. District/USA Original size 40 x 62 mm Symmetry of the External...monoclinic a*b*c a= y=900; {3*90° 22. Orpiment 23. Augite 24. Orthoclase c b triclinic a*b*c * * y* |  | | Journal (issue) | | sefre11 i11 der S011derscfrau i11 Marktleutf1e11. USA und Afrika. Abgerundet wird die Sonderschau durch...Piste erreichbar. Und ganz am Ende der Piste im Bergland ist der Fluorit-Fundort Papachacras in der Karte...verzichten wir auf die weitere Pistenfahrt ins Bergland. Aus der Umgebung von Londres, 20 km südwestlich...oder etwa nicht? Nach halbstündiger Fahrt ins Bergland stehen wir am Eingang zur Grube, im Hintergrund...Adular. An der bekannten Fundstelle für Epidote und Augite konnte er ebendiese Mineralien finden . Neue Klüfte |  | | Journal (article/letter/editorial) | | The Johns Hopkins University, Baltimore, MD 21218, USA Abstract. Crystal-size in crystalline rocks is a...in different ways by Janse and de Jong (1976), Bergland and Larson (1984), and Larson et al. (1985). The...silicates and oxides (i.e. plagioclase, olivine, augite, ilmenite, magnetite, garnet) might be broadly | | | Journal (issue) | | Range II and I l l . Shipton Town hip . Richmond County (Latitude 45°46'25" . Longitude 7 1 °57' 1 2")...ultrJmaii and associaccd rock · that include olivine. augite and cnscatitc as well as some intere�ting at:cc...Mineralogical Studies, 7808 Dh·ision Drive, Batlle Creek, Michigan, 49017 D IG Y O U R O W N I Lisi ol 265 nahonw1de...Scientific Society of Southwest A frica (Otavi Bergland branch), made it possi ble for the Tsumeb Museum...Scientific Society of Southwest Africa (i.e. the Otavi Bergland branch) was formed by a group of interested and |  | | Journal (issue) | | gut gerundet hellgrau verwittert, kleine schwarze Augite, eckige Gerölle schwarzgrau, großporig, leicht...Lahngeblet Lahngebiet ? , oberes Maingebiet Pfälzer Bergland, Odenwald Nahegeblet Nar.egebiet Slebengtbirge |  | | Journal (issue) | | regional metamorphism in the Precambrian of Northern Michigan. - Geol. Soc. Am. Bull. 66, 1455-1488. KIMBERLEY...of oxydation to the origin of soft iron ores of Michigan. - Econ. Geol. 48, 251-281. MEL NIK, Y. P. (1982):...Amphibole. Die Pyroxene (im engeren Sinne: die Augite) haben einen fast rechtwinklig viereckigen Querschnitt...keine der sonst in Tiefengesteinen so häufigen „Augite" gibt, hat seinen Grund darin, daß diese einkettigen...(1980): Subrosions-Stockwerke im Nordhessischen Bergland. Aufschluss 1980. S. 279. PFEFFER. K. H. (1978): |  | | Journal (article/letter/editorial) | | River Shannon. After filling an appointment as County Surveyor iu Ireland, he came in 1836 to England...hills lying around Lough Guitane in the east of County Kerry. At the outset I wish t(> call the attention...conglomerates. Farther to the south-west, however, in the county of Tyrone, abundant porphyrite See Explanation...me are those of :Benaun More and other hills in County Kerry. 74 raOCE~DI~S OF T ~ OEO~OGIeALSOCl~TY...inch or more across, also one or more pyroxenes (augite, enstatite), and sometimes brown mica. Where large |  | | Report (volume) | | 471-479. Art. XXIV. Annotated list of the birds of Michigan, by Dr. Morris Gibbs, pp. 481-497. Art. XXV. The...for purposes of irrigation, by Lieutenant Eric Bergland, Corps of Engineers, pp. 109-125, 7 maps and illustrations...Executive and descriptive report of Lieutenant Eric Bergland, Corps of Engineers, on the operations of party...Executive and descriptive report of Lieutenant Eric Bergland, Corps of Engineers, on the operations of party...Arfvedsonite, analysis of, from Colorado, El Paso County.........H, Ann 10, p 138 Argillite, analysis of |  | | Journal (article/letter/editorial) | | JOHN W. WELLS, Cornell University, Ithaca, N.Y., USA. (Korallen); Dr. L. R. Cox, British Museum, London...Tithonaufschlul3 liegt in einem zerschundenen, niedrigen Bergland, etwa 4 km 5stlieh Kilometer 534 der ,,carretera...teilweise Umwandlung der Augite entstanden. Calzit: Zersetzungsprodukt der Augite; nut in Spuren. Apatit:...regionalem Gesichtspunkt aus gegebener Name ffir das Bergland, das sich im Westen Patagoniens zwisehen Argentinien |
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