 | | 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) | | interpretation; Iron River 1° by 2° quadrangle, northern Michigan and Wisconsin by J. S. Klasner and Wm. J. Jones...gravity data.* Source Estimated number of stations Michigan Technological University L.O. Bacon (1957) W.N...(1978) 2008 192 167 U.S. Geological Survey 1832 Michigan State University W.R. Miller (1966) B.A. Carlson...Similarly, in the Porcupine Mountain region of Michigan (the northwest quadrant of the map) some of the...These include upper Keweenawan Jacobsville Sandstone, Freda Sandstone, Nonesuch Shale, and Copper Harbor |  | | 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 |  | | Report (issue) | | DEPOSITS OF THE MATCHWOOD QUADRANGLE, ONTONAGON COUNTY, MICHIGAN By Robert F. Johnson and Walter S. White... 1 Extrusive and sedimentary rocks 3 Portage Lake Lava Series 3 Unnamed formation 5 Copper Harbor...Harbor Conglomerate 9 Nonesuch Shale 13 Jacobsville Sandstone 16 Intrusive rocks O WX" HC W CL3r "'"I-"...DEPOSITS OF THE MATCHWOOD QUADRANGLE, ONTONAGON COUNTY, MICHIGAN ' ~ By Robert F. Johnson and Walter S. White...Ontonagon County, just west of the Ontonagon River and its Middle Branch. The Portage Lake Lava Series |  | | Report (issue) | | SURVEY GROUND WATER AND GEOLOGY OF MARQUETTE COUNTY, MICHIGAN By C. J. Doonan and J. L. VanAlstine U.S...cooperation with the Michigan Department of Natural Resources Lansing, Michigan 1982 UNITED STATES...Division 6520 Mercantile Way, Suite 5 Lansing, Michigan 48910 CONTENTS Glossary ___________________..._______________________________________________ Jacobsville Sandstone ____________________________________ Rocks...______________________________________________ Munising Sandstone _______________________________________ Cambrian |  | | 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 (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 |  | | Book | | Historic State Park 13700 13.25 Lane Garden, Michigan 49835 Tel: (906) 644-2603 Keweenaw Peninsula Jill...Sciences & Engineering Michigan Technological University 1400 Townsend Dr., Houghton, MI 49931 Miners Castle...Rocks National Lakeshore P.O. Box 40, Munising, Michigan 49862 Tel: (906) 387-2607 / Email: David_Kronk@nps...Mining Engineering and Sciences (adjunct) Northern Michigan University Marquette, MI 49855 Tel: (906) 227-1176...Porritt, Dept of Geological Sciences & Engineering, Michigan Technological University Michelle Miller, Center |  | | Journal (article/letter/editorial) | | Places of Geological and Mineralogical Interest in Michigan LOWER PENINSULA ARTHUR Y. JOHNSTONE Cranbrook...of Science 500 Lone Pine Road Bloomfield Hills, Michigan 48013 The Upper Peninsula has pronounced geological...Paleozoic beds form the northern rim of the Southern Michigan Basin; from Marquette westward, the early Precambrian...beds, forming the northern rim of the Southern Michigan Basin, are evident as soon as you cross the 5-mile...Silurian caverns, were left standing as glacial Lake Nipissing washed 138 ROCKS AND MINERALS UPPER |  | | 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 |  | | 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 |  | | 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...noted that in northern Michigan the upper Precambrian 1 Jacobsville sandstone overlies an irregular erosion |  | | Journal (article/letter/editorial) | | North America: sedimentology of two deep boreholes, Lake Superior region Richard W. Ojakangas a,*, Albert...Minnesota-Duluth, Duluth, MN, 55812, USA b University of Wisconsin-Superior, Superior, Wl, USA Accepted 20 August 2001... two deep boreholes in the Upper Peninsula of Michigan are described in detail for the first time. Both...— the Jacobsville Sandstone and the underlying Freda Sandstone —are described. The Jacobsville is largely...a feldspatholithic sandstone and the Freda is largely a lithofeldspathic sandstone. Below the Freda, the |  | | Journal (article/letter/editorial) | | Midcontinental Rift of the Keweenaw Peninsula, Michigan, USA Ria L. Mitchell a,∗ , Nathan D. Sheldon b a...of Michigan, 2534 CC Little Building, 1100 North University Avenue, Ann Arbor, MI 48109-1005, USA b ...sedimentary rocks from the Keweenaw Peninsula (Michigan, USA) are geochemically characterized to examine...comprising the sedimentary/igneous-mixed Portage Lake Volcanics, coarseness and source-varied Copper Harbor...the quartz-rich post-rift fill unit of the Jacobsville Sandstone were studied over a geographically-wide |  | | Report (issue) | | Center, Rm. 1C402, 12201 Sunrise Valley Dr. SALT LAKE CITY, Utah-Federal Bldg., Rm. 8105, 125 South State...Shale E2 Freda Sandstone E4 Bayfield Group E6 Orienta Sandstone E6 Devils Island Sandstone E6 Chequamegon...Chequamegon Sandstone E6 Bayfield Group Equivalent Rocks E9 Fond du Lac Formation E9 Hinckley Sandstone E9 Jacobsville...rocks E3 Generalized geologic map of the western Lake Superior region showing the distribution of and...Andrzej Barczuk2 Abstract Rocks from exposures in the Lake Superior region and from core and cuttings of exploration |  | | Journal (article/letter/editorial) | | ORE FLUIDS ON THE KEWEENAW PENINSULA, NORTHERN MICHIGAN ALEX C. BROWN†,* Department of Civil, Geological...lodes in the Lake Superior district are confined to a 45-km-long portion of the Portage Lake Volcanics on...around Lake Superior. The focus of ascending ore-forming brine into a narrow segment of Portage Lake strata...district on the Keweenaw Peninsula in northern Michigan has long perplexed exploration geologists. Minor...found wherever the Portage Lake Volcanics host rocks are exposed around Lake Superior, but exploitable |  | | Journal (article/letter/editorial) | | Lawrence, Kans. Paleogeographic Evolution of the Lake Superior Region from Late Keweenawan to Late Cambrian...paleocurrents was made of the Freda sandstone, Jacobsville sandstone, Bayfield group, Dresbach formation...the Northern Michigan highland extended through northern Wisconsin and northern Michigan and acted as...north of the Northern Michigan highland approximately in the present site of Lake Superior but extended...sequence was deformed and eroded, but the Northern Michigan highland persisted as a positive area, and the |  | | Journal (article/letter/editorial) | | 1100 North Univ. Avenue, Ann Arbor, MI 48109-1005, USA a r t i c l e i n f o Article history: Received...flows on the north and south shores of present day Lake Superior. At times of depositional quiescence, paleosols...New results from the Sturgeon Falls paleosol in Michigan characterizing the weathering processes at the...rocks that outcrop on the north and south shore of Lake Superior (Fig. 1). Paleosols are not common in the...Formation of the Powder Mill Group (Fig. 2) in Michigan, USA. In contrast to many Precambrian and Phanerozoic |  | | Journal (article/letter/editorial) | | China Lake, California 93555 Gravity and Magnetic Evidence for the Eastern Termination of the Lake Superior...the Northern Peninsula of Michigan and the adjacent area indicate that the Lake Superior syncline consisting...from eastern Lake Superior into the Northern Peninsula, roughly between Grand Island in Lake Superior and...Southern Peninsula and mark the termination of the Lake Superior syncline. To the south, the Keweenawan...south-trending narrow belt which is reflected in the mid-Michigan gravity high of the Southern Peninsula. Two local |  | 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 |  | | 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) | | 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 ) |  | Bodden, Thomas, Bornhorst, Theodore, Bégué, Florence, Deering, Chad (2022) Sources of Hydrothermal Fluids Inferred from Oxygen and Carbon Isotope Composition of Calcite, Keweenaw Peninsula Native Copper District, Michigan, USA. Minerals, 12 (4) 474 doi:10.3390/min12040474 | Journal (article/letter/editorial) | | Keweenaw Peninsula Native Copper District, Michigan, USA Thomas J. Bodden 1 , Theodore J. Bornhorst 1...Keweenaw Peninsula Native Copper District, Michigan, USA. Minerals 2022, 12, 474. https://doi.org/10...Engineering and Sciences, Michigan Technological University, Houghton, MI 49931, USA; tjbodden@mtu.edu (T...Seaman Mineral Museum, Michigan Technological University, Houghton, MI 49931, USA Department of Earth Sciences...oxygen and carbon isotopes; Keweenaw Peninsula; Michigan; burial metamorphism; fluid mixing; ore genesis |  | | 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 |
|
