Magney Snively Natural Area Nomination
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Ecological Regions of Minnesota: Level III and IV Maps and Descriptions Denis White March 2020
Ecological Regions of Minnesota: Level III and IV maps and descriptions Denis White March 2020 (Image NOAA, Landsat, Copernicus; Presentation Google Earth) A contribution to the corpus of materials created by James Omernik and colleagues on the Ecological Regions of the United States, North America, and South America The page size for this document is 9 inches horizontal by 12 inches vertical. Table of Contents Content Page 1. Introduction 1 2. Geographic patterns in Minnesota 1 Geographic location and notable features 1 Climate 1 Elevation and topographic form, and physiography 2 Geology 2 Soils 3 Presettlement vegetation 3 Land use and land cover 4 Lakes, rivers, and watersheds; water quality 4 Flora and fauna 4 3. Methods of geographic regionalization 5 4. Development of Level IV ecoregions 6 5. Descriptions of Level III and Level IV ecoregions 7 46. Northern Glaciated Plains 8 46e. Tewaukon/BigStone Stagnation Moraine 8 46k. Prairie Coteau 8 46l. Prairie Coteau Escarpment 8 46m. Big Sioux Basin 8 46o. Minnesota River Prairie 9 47. Western Corn Belt Plains 9 47a. Loess Prairies 9 47b. Des Moines Lobe 9 47c. Eastern Iowa and Minnesota Drift Plains 9 47g. Lower St. Croix and Vermillion Valleys 10 48. Lake Agassiz Plain 10 48a. Glacial Lake Agassiz Basin 10 48b. Beach Ridges and Sand Deltas 10 48d. Lake Agassiz Plains 10 49. Northern Minnesota Wetlands 11 49a. Peatlands 11 49b. Forested Lake Plains 11 50. Northern Lakes and Forests 11 50a. Lake Superior Clay Plain 12 50b. Minnesota/Wisconsin Upland Till Plain 12 50m. Mesabi Range 12 50n. Boundary Lakes and Hills 12 50o. -
Inventory of Aquatic and Semiaquatic Coleoptera from the Grand Portage Indian Reservation, Cook County, Minnesota
The Great Lakes Entomologist Volume 46 Numbers 1 & 2 - Spring/Summer 2013 Numbers Article 7 1 & 2 - Spring/Summer 2013 April 2013 Inventory of Aquatic and Semiaquatic Coleoptera from the Grand Portage Indian Reservation, Cook County, Minnesota David B. MacLean Youngstown State University Follow this and additional works at: https://scholar.valpo.edu/tgle Part of the Entomology Commons Recommended Citation MacLean, David B. 2013. "Inventory of Aquatic and Semiaquatic Coleoptera from the Grand Portage Indian Reservation, Cook County, Minnesota," The Great Lakes Entomologist, vol 46 (1) Available at: https://scholar.valpo.edu/tgle/vol46/iss1/7 This Peer-Review Article is brought to you for free and open access by the Department of Biology at ValpoScholar. It has been accepted for inclusion in The Great Lakes Entomologist by an authorized administrator of ValpoScholar. For more information, please contact a ValpoScholar staff member at [email protected]. MacLean: Inventory of Aquatic and Semiaquatic Coleoptera from the Grand Po 104 THE GREAT LAKES ENTOMOLOGIST Vol. 46, Nos. 1 - 2 Inventory of Aquatic and Semiaquatic Coleoptera from the Grand Portage Indian Reservation, Cook County, Minnesota David B. MacLean1 Abstract Collections of aquatic invertebrates from the Grand Portage Indian Res- ervation (Cook County, Minnesota) during 2001 – 2012 resulted in 9 families, 43 genera and 112 species of aquatic and semiaquatic Coleoptera. The Dytisci- dae had the most species (53), followed by Hydrophilidae (20), Gyrinidae (14), Haliplidae (8), Chrysomelidae (7), Elmidae (3) and Curculionidae (5). The families Helodidae and Heteroceridae were each represented by a single spe- cies. Seventy seven percent of species were considered rare or uncommon (1 - 10 records), twenty percent common (11 - 100 records) and only three percent abundant (more than 100 records). -
The Geology of the Middle Precambrian Rove Formation in Northeastern Minnesota
MINNESOTA GEOLOGICAL SURVEY 5 P -7 Special Publication Series The Geology of the Middle Precambrian Rove Formation in northeastern Minnesota G. B. Morey UNIVERSITY OF MINNESOTA MINNEAPOLIS • 1969 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I THE GEOLOGY OF THE MIDDLE PRECAMBRIAN ROVE FORMATION IN NORTHEASTERN MINNESOTA by G. B. Morey CONTENTS Page Abstract ........................................... 1 Introduction. 3 Location and scope of study. 3 Acknowledgements .. 3 Regional geology . 5 Structural geology . 8 Rock nomenclature . 8 Stratigraphy . .. 11 Introduction . .. 11 Nomenclature and correlation. .. 11 Type section . .. 11 Thickness . .. .. 14 Lower argillite unit. .. 16 Definition, distribution, and thickness. .. 16 Lithologic character . .. 16 Limestones. .. 17 Concretions. .. 17 Transition unit . .. 17 Definition, distribution, and thickness. .. 17 Lithologic character . .. 19 Thin-bedded graywacke unit . .. 19 Definition, distribution, and thickness. .. 19 Lithologic character. .. 20 Concretions ... .. 20 Sedimentary structures. .. 22 Internal bedding structures. .. 22 Structureless bedding . .. 23 Laminated bedding . .. 23 Graded bedding. .. 23 Cross-bedding . .. 25 Convolute bedding. .. 26 Internal bedding sequences . .. 26 Post-deposition soft sediment deformation structures. .. 27 Bed pull-aparts . .. 27 Clastic dikes . .. 27 Load pockets .. .. 28 Flame structures . .. 28 Overfolds . .. 28 Microfaults. .. 28 Ripple marks .................................. 28 Sole marks . .. 28 Groove casts . .. 30 Flute casts . -
Final Report
2011 Project Abstract For the Period Ending June 30, 2014 PROJECT TITLE: Scientific and Natural Areas Acquisition and Restoration PROJECT MANAGER: Margaret (Peggy) Booth AFFILIATION: DNR Scientific & Natural Area Program MAILING ADDRESS: 500 Lafayette Rd N, Box 25 CITY/STATE/ZIP: St. Paul, MN 55155-4025 PHONE: 651-259-5088 E-MAIL: [email protected] WEBSITE: www.mndnr.gov/snas FUNDING SOURCE: Environment and Natural Resources Trust Fund) LEGAL CITATION: M.L. 2011, First Special Session, Chp. 2, Art.3, Sec. 2, Subd. 04e APPROPRIATION AMOUNT: $1,640,000 Overall Project Outcome and Results The biologically significant 900-acre Badoura Jack Pine Forest SNA was acquired in part through appropriation. Twenty-two conservation easement baseline property reports at 11 SNAs are completed. The SNA Strategic Land Protection Plan has been completed which prioritizes places of ecological importance for protection as SNAs and by partners. Habitat restoration and enhancement actions are increasing the quality of habitat on SNAs through achieving: restoration of about 30 acres at 4 SNAs; woody invasive species control on 610 acres at 19 SNAs, herbaceous invasive species treatment on 487 acres at 33 SNAs, and installation of invasives control bootbrush kiosks at 6 SNAs; about 36 miles of burn breaks at 21 SNAs and completion of 1,190 acres of prescribed burns at 25 SNAs; and site development work (e.g. entry and boundary signs, new gates, and site cleanup) at 35 SNAs. Conservation Corps Minnesota was involved in 51 of these projects. Substantial monitoring was completed of pollinators at 10 SNAs, of snakes at 1 SNA, and of native plant communities at 2 SNAs. -
How Environmentally Responsible Mining Will Boost Minnesota's Economy
Unearthing Prosperity How Environmentally Responsible Mining Will Boost Minnesota’s Economy ISAAC M. ORR, DEBRA W. STRUHSACKER, JOHN PHELAN Isaac Orr is a policy fellow at Center of the American Experiment specializing in energy and environmental policy. He graduated from the University of Wisconsin–Eau Claire with studies in political science and geology, winning awards for his undergraduate geology research. Debra Struhsacker is a hardrock mining policy expert with over 30 years of hands-on expertise with the environmental and public land laws and regulations pertaining to mineral exploration and mine development. Ms. Struhsacker is a Phi Beta Kappa graduate of Wellesley College where she majored in both geology and French. She also has a Master of Science degree in geology from the University of Montana. Debra is one of the founders of the Women’s Mining Coalition and currently serves on the Coalition’s Board of Directors. She is a Certified Professional Geologist with the American Institute of Professional Geologists. Her professional memberships include the Mining and Metallurgical Society of America; the Society for Mining, Metallurgy, and Exploration, Inc.; and the Geological Society of Nevada. She has served twice as a trustee of the Northwest Mining Association (now the American Exploration & Mining Association) and is an Emeritus Member of the Board of Directors of the Mountain States Legal Foundation. John Phelan is an economist at Center of the American Experiment. He is a graduate of Birkbeck College, University of London, where he earned a BSc in Economics, and the London School of Economics where he earned an MSc. John worked in finance for ten years before becoming a professional economist. -
The Mineral Industry of Minnesota
MINNESOTA KITTSON ROSEAU SG LAKE OF THE WOODS CS MARSHALL Peat KOOCHICHING PENNINGTON BELTRAMI Peat COOK E Lime RED LAK CS ST LOUIS SG D-G CLEAR Fe POLK 1 WATER LAKE ITASCA SG CS Fe CS NORMAN CS Peat SG MAHNOMEN SG SG HUBBARD CASS 2 SG Peat SG Lime BECKER SG Peat CLAY LEGEND AITKIN County boundary Peat Peat CS Peat Peat Duluth Capital WADENA CROW Peat CARLTON OTTER TAIL WING SG Per City WILKIN Peat Peat Peat SG Crushed stone/sand SG 1 and gravel districts MILLE TODD PINE SG LACS MORRISON SG D-G MINERAL SYMBOLS GRANT DOUGLAS KANABEC (Major producing areas) 3 SG BENTON Peat Clay Common clay SG STEARNS TRAVERSE SG SG SG POPE CS Peat ISANTI Crushed stone STEVENS CS BIG D-G SHERBURNE STONE SG CHISAGO D-G Dimension granite ANOKA D-G Peat CS SWIFT WRIGHT D-L Dimension limestone D-G KANDIYOHI WASHINGTON MEEKER SG SG 5 Fe Iron LAC QUI RAM- Peat CS PARLE CHIPPEWA SEY Steel HENNEPIN SG S-o IS Industrial sand Minneapolis IS St. Paul McLEOD CARVER SG CS SG Lime Lime plant YELLOW RENVILLE SG Lime SG DAKOTA MEDICINE Clay CS SG Peat Peat Clay SCOTT CS SIBLEY D-G LE Per Perlite plant Clay Peat LINCOLN LYON REDWOOD SUEUR GOODHUE NICOLLET IS SG CS SG S-o Sulfur (oil) RICE SG WABASHA CS SG D-L BROWN CS 4 Clay CS SG SG SG Construction sand BLUE STEELE DODGE and gravel PIPE- COTTON- CS SG D-L MURRAY EARTH WASECA CS CS STONE WOOD WATONWAN OLMSTED SG WINONA CS Steel Steel plant SG SG CS CS 6 Rochester Concentration of MOWER FILLMORE HOUSTON mineral operations ROCK NOBLES JACKSON MARTIN FARIBAULT FREEBORN CS CS CS SG 0 100 Kilometers Source: Minnesota Department of Natural Resources, Division of Lands and Minerals/U.S. -
Mineral Development in Minnesota
MINNESOTA GEOLOGICAL SURVEY D.L. Southwick, Director MINERAL DEVELOPMENT IN MINNESOTA PAST HISTORY, PRESENT TRENDS, AND FUTURE POSSIBILITIES G.B. MOREY Report of Investigations 52 ISSN 0076-9177 UNIVERSITY OF MINNESOTA NOV 6 2UOD, Saint Paul-1998 DEt,;~",' " MINERAL DEVELOPMENT IN MINNESOTA PAST HISTORY, PRESENT TRENDS, AND FUTURE POSSIBILITIES Minnesota Geological Survey 2642 University Avenue West Saint Paul, Minnesota 55114-1057 Telephone: 612-627-4780 Fax: 612-627-4778 E-mail address:[email protected] Web Site: http://geolab.geo.umn.edu/mgs ©1998 by the Board of Regents of the University of Minnesota All rights reserved. The University of Minnesota is committed to the policy that all persons shall have equal access to its programs, facilities, and employment without regard to race, color, creed, religion, national origin, sex, age, marital status, disability, puclic assistance status, veteran status, or sexual orientation. ii CONTENTS Page ABSTRACT .......................................................................................................................................................................... 1 INTRODUCTION ................................................................................................................................................................. 2 A BRIEF mSTORY OF MINING IN MINNESOTA ........................................................................................................... 2 IMPORTANCE OF MINING IN MINNESOTA ................................................................................................................. -
Field Trip 2
FIELD TRIP 4 GEOLOGY OF THE NICKEL LAKE MACRODIKE AND ITS ASSOCIATION WITH CU-NI-PGE MINERALIZATION IN THE NORTHERN SOUTH KAWISHIWI INTRUSION, DULUTH COMPLEX, NORTHEASTERN MINNESOTA By Dean M. Peterson1 and Paul B. Albers2 1 University of Minnesota Duluth, Natural Resources Research Institute 2 Duluth Metals Limited, Ely, Minnesota “Imagination is more important than knowledge” Albert Einstein INTRODUCTION Mineral deposits are concentrations of specific ore-minerals that society utilizes in immeasurable ways. They have formed from Archean times up to the present, and vary greatly in commodity, mineralogy, alteration, trace element signature, geophysical properties, and grade-tonnage. Individual ore deposits are always unique, and this uniqueness arises from two main sources: 1) fundamental differences in geologic processes and environments; and 2) local, site-specific, geologic variations and associated bounding geometries. The seemingly limitless number of permutations of these (and other) features of mineral deposits defies imagination. Geologists employed in the search for ore deposits have, over the last century, developed the intellectual concept of Ore Deposit Models, which seek to organize many of these variables, lump individual mineral deposits into classes, and establish criteria to aid in mineral exploration (Peterson, 2001a). Such models may be strictly empirical – a collection of observable facts associated with the occurrence of certain metals in economic proportions – or genetic – which attempts 1 to describe the physical -
Development of a Comprehensive Conservation Strategy for the North Shore Highlands Region of Minnesota in the Context of Future Wind Power Development
Development of a Comprehensive Conservation Strategy for the North Shore Highlands Region of Minnesota in the Context of Future Wind Power Development Final Report to Minnesota Department of Natural Resources MN-T-34-R-1 December 31, 2011 Anna Peterson, Graduate Research Assistant Conservation Biology Graduate Program University of Minnesota, St. Paul and Gerald J. Niemi, Professor Natural Resources Research Institute University of Minnesota Duluth Award: CON000000026049 3013-10429-00017864 Natural Resources Research Institute technical report number: NRRI/TR-2012/13 Introduction Each autumn, millions of birds migrate from their breeding grounds in the northern hemisphere to wintering areas in the continental United States, Mexico, Central America, and South America (Rich 2004, Bildstein 2006). The North Shore Highlands parallels the Lake Superior shoreline from Duluth through Grand Portage, Minnesota to the US border with Canada. This region’s prominent ridgelines and Lake Superior coastline funnel migrating birds into this migration corridor (Hofslund 1966, Mueller and Berger 1967, Bildstein 2006). As a result, the North Shore Highlands hosts the largest migratory route for birds of prey in Minnesota and is among the highest in the US. In addition, recent data suggest that the numbers of non- raptor bird species moving along the north shore of Lake Superior are orders of magnitude larger than those for raptors. Migration periods constitute a critical life-stage for these birds as mortality rates may be higher during migration than during breeding or over wintering periods (Sillett and Holmes 2002, Smith and Moore 2003). Large bodies of water and other major topographical features cause a nonrandom distribution of migrating birds on the landscape in both periods of active flight and rest (Goodrich and Smith 2008). -
Geology and Genesis of the Duluth Complex and Its Ore Deposits
JIM MILLER PRECAMBRIAN RESEARCH CENTER DEPT. OF GEOLOGICAL SCIENCES UNIVERSITY OF MINNESOTA DULUTH Minnesota Ground Water Association Spring Meeting May 6, 2010 Talk Outline • History of Geologic Mapping • Evolution of the Midcontinent Rift •Geology & Genesis of the Duluth Complex •Cu-Ni-PGE Mineralization Stillwater Complex, Montana Skaergaard, East Greenland Sudbury Complex, Second Ontario DuluthDuluth Largest Complex Great Complex Dyke, Gabbro Zimbabwe Complex in Bushveld Complex, the World South Africa Geology of Minnesota circa 1872 Minnesota Geological Survey 1872 - 1900 N.H. Winchell The Grout and F.F. Grout Schwartz Era 1911-1958 G.M. Schwartz Saganaga Lake, Aug. 1922 “Chicken-track” Reconnaissance Mapping Sonju Lake area geology 1939 Grout, 1918 Geology of Northeast Minnesota circa 1932 The Quadrangle Mapping Era 1961 - 1982 P.K. Sims, MGS Director 1961-1973 Matt Walton, MGS Director, 1973-1987 J.C. Green – North Shore Volcanics P.W. Weiblen - Bald Eagle Int, Long Is. Lk. W.C. Phinney - NW Duluth Complex D.M. Davidson Jr. - E Duluth Complex B. Bonnichsen - S Duluth Complex, Babbitt Ph.D. Theses R.B. Taylor – Duluth area H.D. Hathan – Gunflint Trail area E.A. Mathez – Logan Sills M.G. Mudrey – Pigeon Point R.W. Cooper – Babbitt/Harris Lake area M.P. Foose – Harris Lake area MGS Misc. Map M-1 M.S. Theses 1964, R.B. Taylor N.W. Jones – Hovland Db, Logan Sills J.A. Kilburg – Ely’s Peak J.R. Burnell – Brule Lake R.J. Stevenson – Sonju Lake Intrusion N.M. Pope – Silver Cliff/Lafayette Bluff John Green Bill Phinney Paul Weiblen Gooseberry Falls, 1996 Gabbro Lake 15’ Quadrangle MGS Miscellaneous Map M-2 Green, Phinney, & Weiblen, 1966 massive sulfide, basal DC Phinney Nathan/Mathez Bonnichsen Davidson Two Harbors Sheet J.C. -
Zircon Grains Recording Magma Evolution History
Significant Zr isotope variations in single zircon grains recording magma evolution history Jing-Liang Guoa,b,1, Zaicong Wanga,1, Wen Zhanga, Frédéric Moyniera,c, Dandan Cuia, Zhaochu Hua, and Mihai N. Duceab,d aState Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences, China University of Geosciences, Wuhan 430074, China; bDepartment of Geosciences, University of Arizona, Tucson, AZ 85718; cInstitut de Physique du Globe de Paris, Université de Paris, CNRS, 75238 Paris Cedex 05, France; and dFaculty of Geology and Geophysics, University of Bucharest, 010041 Bucharest, Romania Edited by Bruce Watson, Rensselaer Polytechnic Institute, Troy, NY, and approved July 20, 2020 (received for review February 27, 2020) Zircons widely occur in magmatic rocks and often display internal differentiation processes of the silicate Earth (17, 18), the Zr zonation finely recording the magmatic history. Here, we presented isotopes of zircon might also record related messages. in situ high-precision (2SD <0.15‰ for δ94Zr) and high–spatial-resolution Recent developments of bulk and in situ analytical methods (20 μm) stable Zr isotope compositions of magmatic zircons in a have permitted studies on mass-dependent Zr isotope fraction- suite of calc-alkaline plutonic rocks from the juvenile part of the ation in terrestrial samples, including zircons (15, 19–24). They Gangdese arc, southern Tibet. These zircon grains are internally show the great potential of Zr isotope in tracing magmatic zoned with Zr isotopically light cores and increasingly heavier processes. However, available data have been rather limited and rims. Our data suggest the preferential incorporation of lighter resulted in very controversial interpretation (21, 22), such as for Zr isotopes in zircon from the melt, which would drive the residual fractionation factor α (whether greater or smaller than 1). -
DRAFT Desired Future Conditions for Jonvik/CRSP Project Area North
DRAFT Desired Future Conditions for Jonvik/CRSP Project Area North Shore Till Plain Land Type Association developed for North Shore Forest Collaborative by Dave Ingebrigtsen 25 September 2012; revised 17 December 2012 Biodiversity Area –High (north of the powerline) Old white cedar –scattered trees and clumps Declining paper birch trees A few white pines (protected with fencing) Current Open canopy Condition Ground vegetation: bush honeysuckle LTA level/class level DFC Goals Table 1, LTA level/class level DFC goals Vegetation There is an ecologically distributed proportion of high-quality, representative native plant communities, and native plant Structure and community associations. Composition High quality, representative native plant communities and rare native plant communities are sustained or enhanced. Lands are managed or restored according to the forest system (e.g. MH, FD) defined in the Native Plant Community classification System. Growth Stages Increase the 81+ multi-aged conifer growth stage (MFRC NE Landscape Committee 2003). Tree Species Increase the white pine, white spruce and tamarack component (MFRC NE Landscape Committee 2003). Diversity Increase yellow birch and white cedar where appropriate. Native/Nonnative Maintain natives. Species Prevent introduction of nonnative invasive species. Eliminate or control nonnative invasive species populations. Restore the forests that have been encroached upon by grass. (primarily Calamagrostis Canadensis, Canada bluejoint). Rare communities Native plant communities with an S-Rank of S1(“Critically Imperiled”) or S2 (“Imperiled”) rare in the North Shore Subsection are protected or restored (see Appendix Tables 1-2). Native plant communities with an S-Rank of S3 to S5 that are rare or unique in the North Shore Subsection are sustained or enhanced (see Appendix Table 3) Woody debris and Maintain or create coarse wood debris and snags.