 | | Report (issue) | | Publisher Publisher Institute Instituteon onLake Lake Superior Superior Geology Geology Distributor Distributor...University University Michigan Townsend Drive Drive 1400Townsend 1400 Houghton, Houghton, Michigan Michigan49931-1...Peninsula, Michigan: Institute on Lake Superior Geology Proceedings, Keweenaw Peninsula, Michigan: Institute...Institute on Lake Superior Geology Proceedings, 40th 40thAnnual AnnualMeeting, Meeting,Houghton, Houghton,Ml,...Institute Institute on on Lake Lake Superior Superior Geology Peninsula, Michigan" Michigan" (Bornhorst (Bornhorst |  | | 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 |  | Carlson, Shawn M., Robinson, George W., Elder, Mark J., Jaszczak, John A., Bornhorst, Theodore J. (2007) Greenockite and Associated Uranium-Vanadium, Minerals from the Huron River Uranium Prospect Baraga County, Michigan. Rocks & Minerals, 82 (4) 298-309 doi:10.3200/rmin.82.4.298-309 | Journal (article/letter/editorial) | | University] at 17:57 01 December 2014 Baraga County, Michigan Figure 1. Contact between mineralized brecciated...THEODORE J. BORNHORST2 1 PO Box 234 Crystal Falls, Michigan 49920 shawncarlson@hotmail.com 2 A. E. Seaman...Engineering and Sciences Michigan Technological University 1400 Townsend Drive Houghton, Michigan 49931 robinson@mtu...edu; tjb@mtu.edu 3 3755 J-5 Road Bark River, Michigan 49807 markelder@juno.com 4 A. E. Seaman Mineral...Department of Physics Michigan Technological University 1400 Townsend Drive Houghton, Michigan 49931 jaszczak@mtu |  | | Report (volume) | | Sturgeon River Wilderness Study Area, Houghton and Baraga Counties, Michigan By W. F. CANNON and ELIZABETH R...land in the Sturgeon River Wilderness study area, Michigan, that is being considered for wilderness designation...National Forest in Houghton and Baraga Counties in the Upper Peninsula of Michigan. * * CONTENTS H...13 Pleistocene glacial deposits- -----Jacobsville Sandstone ---------- 14 15 Diabase dikes -------------Basalt-...43 Glacial deposits- ------------ 44 Jacobsville Sandstone ---------- 42 43 VI CONTENTS Potential |  | | 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) | | Northern Michigan and Wisconsin Prepared in cooperation with the Geological Survey Division, Michigan Department...Potential for Diamond-Bearing Kimberlite in Northern Michigan and Wisconsin By W. F. Cannon and M. G. Mudrey...cooperation with the Geological Survey Division, Michigan Department of Natural Resources Description of...possibility that kimberlites in Wisconsin and Michigan might be the source for drift diamonds in Wisconsin...-----------------Eagle, Waukesha County---------------------Plum Creek, Pierce County ___________________ _ Saukville |  | | Journal (article/letter/editorial) | | Mineralogy of Precambrian Paleosols in Northern Michigan J. KALLIOKOSKI Department of Geology and Geological...that underlie the upper Keweenawan (?) Jacobsville sandstone. The main characteristics of the granodiorite...paleogeograpby, Precambrian, weathering. Engineering, Michigan Technological University, tite, and diabase...will be studied by many future workers. Houghton, Michigan 49931 samples gives an average composition...percent serpentine, 9.2 percent augite, 8.9 percent magnetite and chromite, 8.6 percent olivine, 6.6 percent |  | | Corporate Document | | GEOLOGY OF THE EAGLE NICKEL-COPPER DEPOSIT MICHIGAN, USA Prepared for: Kennecott Minerals Co. Prepared...Pd. The project is located in Marquette County, Michigan, USA. The project is 100% owned and operated...with retained NSR royalties held by the state of Michigan and various private interests. Kennecott Exploration...Kansas, passes beneath Lake Superior, and turns southward into southern Michigan. The rift is believed...property is located in the Upper Peninsula of Michigan, USA at geographic coordinates 46° 44’ 54” north |  | | Journal (article/letter/editorial) | | Survey, National Center-MS 954, Reston, VA 22092, USA (Received October 10, 1990; accepted after revision...long rift are exposed only in the Lake Superior region. In the Lake Superior region, the rift cuts across...clastic sedimentary rocks. Beneath the center of Lake Superior the volcanic and sedimentary rocks are...Survey, National Center--MS 954, Reston, VA 22092, USA. tinent rift system (MRS) of North America is one...in an arcuate trend from eastern Kansas through Lake Superior to the Grenville front 356 (Fig. 1 ) |  | | Report (issue) | | Correlation of Precambrian Rocks of the Lake Superior Region, United States U.S. GEOLOGICAL SURVEY...1241-F Correlation of Precambrian Rocks of the Lake Superior Region, United States By G.B. MOREY and...isotope ages of exposed Precambrian rocks in the Lake Superior region of the north-central United States...Morey, G.B. Correlation of Precambrian rocks of the Lake Superior region, United States. (Correlation of...Stratigraphic-Pre-Cambrian. 2. Stratigraphic correlation-Superior, Lake, Region. I. Van Schmus, W.R. II. Title. III. Series |  | Craddock, John P., Anziano, Jennifer, Wirth, Karl, Vervoort, Jeffrey D., Singer, Brad, Zhang, Xifan (2007) Structure, geochemistry and geochronology of a Penokean Lamprophyre Dike Swarm, Archean Wawa Terrane, Little Presque Isle, Michigan, USA. Precambrian Research, 157 (1) 50-70 doi:10.1016/j.precamres.2007.02.010 | Journal (article/letter/editorial) | | Archean Wawa Terrane, Little Presque Isle, Michigan, USA John P. Craddock a,∗ , Jennifer Anziano a ,...Department, Macalester College, St. Paul, MN 55105, USA School of Earth & Environmental Science, Washington...99164, USA c Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706, USA Received...lamprophyre dikes on Little Presque Isle near Marquette, Michigan were studied to compare their intrusive magmatic...unconformably overlain by the undeformed Jacobsville Sandstone (Meso- to Neoproterozoic). The lamprophyre |  | | Journal (article/letter/editorial) | | of the Sturgeon River, some 25 km SW of Baraga, Michigan. The paleosol was developed on hydrothermally...Keweenawan basalt and is overlain by the Jacobsville sandstone. Textures, mineralogy, and chemical composition...to the contact of the paleosol with the Jacobsville sandstone. Many of these changes are similar to those...had equilibrated with K-feldspar in the Jacobsville sandstone. The Keweenawan basalt was oxidized quite...the Keweenawan lavas and the overlying Jacobsville sandstone. We then show that the petrography, the |  | | Report (volume) | | River Canyon Wilderness Study Area, Alger County, Michigan By]ESSE W. WHITLOW and PHILIP J. GERACI, U...River Canyon wilderness study area, Alger County, Michigan. (Geological Survey bulletin; 1549) Bibliography:...no.: I 19.3:1549 1. Mines and mineral resources-Michigan-Rock River Canyon Wilderness. 2. Rock River Canyon...forest land in the Rock River Canyon study area, Michigan, that is being considered for wilderness designation...Hiawatha National Forest in Alger County in the Upper Peninsula of Michigan. CONTENTS Page Sununary |  | | Journal (article/letter/editorial) | | Engineering Geology and Geophysics, Michigan Technological University, Houghton, M I 49931 (U.S.A.) Received...lava flows from the Keweenaw Peninsula in upper Michigan have been precisely dated, using U-Pb analyses...the Copper City Flow, near the base of the Portage Lake Volcanics, and the Greenstone Flow, near the top...an andesite flow from the Lake Shore Traps, 1000 m above the Portage Lake Volcanics and within the Copper...oi~1~+18 .5_o16 m m / y during eruption of the Portage Lake Volcanics and 0.2 ± 0.1 m m / y (lo errors) for |  | | Journal (article/letter/editorial) | | minerals Article PGE-Enrichment in Magnetite-Bearing Olivine Gabbro: New Observations from the Midcontinent...Midcontinent Rift-Related Echo Lake Intrusion in Northern Michigan, USA Alexander James Koerber and Joyashish...Sciences, Western Michigan University, 1903 W Michigan Ave, Kalamazoo, MI 49008, USA; alexander.j.koerber@wmich... Abstract: The Echo Lake intrusion in the Upper Peninsula (UP) of Michigan, USA, was formed during the...peridotite, mafic pegmatitic rock, olivine gabbro, magnetite-bearing gabbro, and anorthosite. Exploratory drilling |  | | Journal (article/letter/editorial) | | ALLEN State Geologist of Michigan AND L. P. BARRETT Assistant Geologist, Michigan Geological Survey INTRODUCTORY...the Gogebic iron range in Michigan from T. 47 N., R. 45 W., east to Gogebic Lake, a distance of 16 miles...pre-Cambrian of the region south and east of Gogebic Lake to the Iron River district, including 38 townships...ceto the progress of pre-Cambriangeology of the Lake Superiorregion. This is our excuse for presenting...district-that is, from about 6 miles east of Sunday Lake to Gogebic Lake-the Upper Huronian rocks have an exceptional |  | Craddock, John P., Craddock, Suzanne D., Konstantinou, Alex, Kylander-Clark, Andrew R.C., Malone, David H. (2017) Calcite twinning strain variations across the Proterozoic Grenville orogen and Keweenaw-Kapuskasing inverted foreland, USA and Canada. Geoscience Frontiers, 8 (6) 1357-1384 doi:10.1016/j.gsf.2017.01.006 | Journal (article/letter/editorial) | | orogen and Keweenaw-Kapuskasing inverted foreland, USA and Canada John P. Craddock a, *, Suzanne D. Craddock...Department, Macalester College, St. Paul, MN 55105, USA School of Earth Sciences and Environmental Sustainability...Sustainability, Northern Arizona University, Flagstaff, AZ, USA c Cyprus Hydrocarbons Company, Nicosia, Cyprus d...93106, USA e Department of Geography-Geology, Illinois State University, Normal, IL 61790-4400, USA b a...orogen and KeweenawKapuskasing inverted foreland, USA and Canada, Geoscience Frontiers (2017), http://dx |  | | Journal (article/letter/editorial) | | SomeCopperSulfideDeposits Near Mount Bohemia,KeweenawCounty, Michigan JAMESM. ROBERTSON Abstract Coppersulfides,in...mineralization in an volcanicflows and conglomerates of the Lake Su- approximatelyone-mile-squarepart of the Lac...the NonesuchShale at White Pine, Michigan, the sulfidesof the Lake Superior Copper especially noteworthy...geologyof the KeweenawPeninsulahasbeen Mount Bohemia, Michigan. Although primarily a comprehensively describedby...Wandke (1922) lists known sulfide occurrencesin the Lake Superior 3'tratcraphy CopperDistrict and speculates |  | | Journal (article/letter/editorial) | | derived from the Precambrian rocks centered around the Lake Superior region of the Canadian Shield. Relatively...erogenic activity. Although some contributions from the Lake Superior region and Canadian Shield continued, the...formation and Marshall formation crossbedding of Michigan basin 1219 Geological Society of America Bulletin...limestone isopach (Glen Dean to base of Aux Vases sandstone) and principal sand trends . . . . 1220 12. Isopach...University; Dr. Louis Briggs, University of Michigan; Garland Ells, Michigan Geological Survey; Table 1. Salient |  | | Report (issue) | | Marquette and Sands Quadrangles Marquette County Michigan GEOLOGICAL SURVEY PROFESSIONAL Prepared...cooperation with the Geological Survey Division of the Michigan Department of Conservation PAPER 397 Geology...Marquette and Sands Quadrangles Marquette County Michigan By JACOB E. GAIR and ROBERT E. THADEN GEOLOGICAL...cooperation with the Geological Survey Division of the Michigan Department of Conservation UNITED STATES GOVERNMENT...Group. _______________________________ Enchantment Lake Formation.. _ _____________ Definition, distribution |  | | Journal (issue) | | the Quincy mine ca. 1918. (Michigan Technological University Archives, Houghton) D e d ic ated to the Memory...Donald Pearce (1941-1989) The “Copper King” The MICHIGAN COPPER COUNTRY L. W i l s o n New Mexico Bureau...t a n l e y J. D y l II Seaman Mineral Museum Michigan Technological University % 1992 T h e M in e...crystal group, 13.6 cm, from an unknown mine in the Michigan Copper Country. Richard A. Kosnar collection;...wrote the classic work on the copper deposits of Michigan in 1929. Photo by Wendell E. Wilson. TENT . |  | | 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 |  | | Report (issue) | | among the many groups participating in the, 1963 Lake Superior seismic experiments to attempt to bring...advanced to explain the crustal structure in the Lake Superior province of the Canadian Shield. I t was...stages of interpreta tion that the crust in the Lake Superior region is of far greater complexity than...description of the geophysical character of the Lake Superior re gion. The story is, of course, far...questions still remaining about the structure of the Lake Superior area. pers solicited from, or volunteered |  | | Report (issue) | | Professional Paper 184 PRE-GAMBRIAN ROCKS OF THE LAKE SUPERIOR REGION A REVIEW OF NEWLY DISCOVERED GEOLOGIC..._____________________________________________ Michigan and Wisconsin.________:_____-____--_--__----_...______________________________________________________ Michigan and Wisconsin,_____-_-________-_-__-_-_------..._-_-___________-___.__________ Age of the Knife Lake series and its equivalents_--_---_-------------..._--____________________________ Wisconsin and Michigan. _______-_:________-_______-_----_ __---_____ |  | | Report (issue) | | Northern Michigan Report prepared in cooperation with Geological Survey Division, Michigan Department...Sedimentary Rocks in the Precambrian of Northern Michigan By W. F. Cannon and J. S. Klasner GEOLOGICAL...cooperation with Geological Survey Division, Michigan Department of Natural Resources 1976 746 United...Section 15 locality ________________________ _ Silver Lake locality ____________________________ ___ Michigamme...sedimentary rocks in the Precambrian of northern Michigan By W. F. Cannon and J. S. Klasner ABSTRACT Phosphatic |
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