Using Lake Superior Parks to Explain The

Total Page:16

File Type:pdf, Size:1020Kb

Load more

Summer 2015 • Volume 32 • Number 1 • www.nature.nps.gov/ParkScience National Park Service U.S. Department of the Interior PARKScience Natural Resource Stewardship and Science Integrating Research and Resource Management in the National Parks Office of Education and Outreach THE MAZAMA NEWT: CLASH WITH NONNATIVE CRAYFISH IN CRATER LAKE ALSO IN THIS ISSUE • NPS response to climate change in wilderness • Monitoring physiological stress in pikas • Interpretive primer: The Midcontinent Rift and Lake Superior parks • Geocaches as interpretation at Everglades • Tick surveillance along the Appalachian Trail • Removal of artesian wells from Great Sand Dunes • Ozone effects on ecosystem services at Great Smoky Mountains PARK SCIENCE • VOLUME 32 • NUMBER 1 • SUMMER 2015 PARKScience Integrating Research and Resource Management in the National Parks Volume 32 • Number 1 • Summer 2015 www.nature.nps.gov/ParkScience ISSN 0735–9462 From the Editor Published by U.S. Department of the Interior National Park Service A theme for the ages Natural Resource Stewardship and Science Office of Education and Outreach Lakewood, Colorado The articles that follow illuminate many of the virtues of science: Director, National Park Service adaptability, repeatability, scalability, affinity for scrutiny and compound- Jon Jarvis ing, and ultimately its ability to produce knowledge. In this snapshot of Associate Director, Natural Resource seemingly unrelated studies, science is the theme, the common thread, Stewardship and Science and it is a strong bond. Raymond Sauvajot Our cover article reviews what is known about an endemic species Editor and Layout Jeff Selleck of salamander in Crater Lake and its troubling competition with an in- Copyeditor/Proofreader vasive, nonnative species of crayfish. The researchers couple this knowl- Lori D. Kranz (contractor) edge with an experiment of their own to better understand interactions Editorial board between the species, and like sunlight penetrating the lake, science spot- John Dennis—Deputy Chief Scientist, Natural Resource Stewardship and Science lights the problem and indicates the need for a management response. Charles Roman—NPS Research Coordinator, North Elsewhere social science provides a much-needed feedback loop for Atlantic Coast Cooperative Ecosystem Studies Unit, managers of designated wilderness areas with regard to wilderness steward- University of Rhode Island ship as our climate changes. The report is a variation on a familiar theme: Editorial office whether or not to act in wilderness and the implications of an active or pas- Jeff Selleck National Park Service sive stewardship approach for the preservation of wilderness character. NRSS/OEO Researchers also investigate the abundance and distribution of P.O. Box 25287 Denver, CO 80225-0287 pathogen-carrying ticks along the Appalachian Trail. The study reveals E-mail: [email protected] the importance of providing information for hikers to take preventive Phone: 303-969-2147 measures to help ensure their health and safety as they enjoy the trail. Fax: 303-987-6704 Physical and intellectual interaction with parks is a prime oppor- Sample style for article citation Bingham, A., and E. Porter. 2015. Ozone effects on tunity awaiting visitors to the areas we manage, and the research about two ecosystem services at Great Smoky Mountains geocaches in Everglades gives us a useful perspective on this. Geocach- National Park, USA. Park Science 32(1):71–79. ing combines finding one’s way to park features and preplaced interpre- Printed on recycled paper. tive information by way of a GPS device and a list of coordinates. As the Park Science is a research and resource management researchers report, the activity can stimulate learning, provide physical journal of the U.S. National Park Service. It reports the challenge, and be designed to minimize resource damage. This informa- implications of recent and ongoing natural and social science and related cultural research for park planning, tion may help increase confidence in managers to create similar pro- management, and policy. Seasonal issues are published grams in other parks. usually in spring and fall, with a thematic issue that explores a topic in depth published in summer or winter. This collection of articles is not easily summed up in a thematic The publication serves a broad audience of national park word or phrase. It is a fascinating array of field-based studies and find- and protected area managers and scientists and provides for public outreach. It is funded by the Associate Director ings that illustrate the flexibility, usefulness, and robust nature of science for Natural Resource Stewardship and Science. as our fundamental way of knowing. Articles are field-oriented accounts of applied research and —Jeff Selleck, Editor resource management presented in nontechnical language. The editor and board or subject-matter experts review content for clarity, completeness, usefulness, scientific and Article inquiries, submissions, and comments should style guide, an archive and key word searching of all technical soundness, and relevance to NPS policy. be directed to the editor by e-mail. Letters addressing articles, and subscription management. scientific or factual content are welcome and may be Facts and views expressed in Park Science are those of the edited for length, clarity, and tone. Though subscriptions are offered free of charge, voluntary authors and do not necessarily reflect opinions or policies donations help defray production costs. A typical donation of the National Park Service. Mention of trade names or Park Science is published online at http://www.nature is $15 per year. Checks should be made payable to the commercial products does not constitute an endorsement .nps.gov/ParkScience (ISSN 1090-9966). The Web site National Park Service and sent to the editorial office or recommendation for use by the National Park Service. provides guidelines for article submission, an editorial address. 3 Contents SETH STEIN NPS PHOTO GRAHAM HICKLING 19 30 36 DEPARTMENTS RESEARCH SUMMARY From the Editor The impact of introduced crayfish on a unique population A theme for the ages / 2 of salamander in Crater Lake, Oregon 5 Expansion of introduced crayfish in Crater Lake has and likely will continue to cause declines in the abundance and distribution of the Mazama newt and ultimately could lead to the newt’s extinction. By M. W. Buktenica, S. F. Girdner, A. M. Ray, D. K. Hering, and J. Umek FEATURE The National Park Service response to climate change in wilderness 13 Parks are responding to the effects of climate change using an active approach to wilderness stewardship. This study describes the level and diversity of the stewardship responses and the effects they have on wilderness character. By Katie Nelson INTERPRETIVE PRIMER Using Lake Superior parks to explain the Midcontinent Rift 19 Explaining the spectacular scenery around Lake Superior resulting from the 1.1 billion–year–old Midcontinent Rift System gives park interpreters an opportunity to discuss some of the most important processes that shape our planet and influenced the region’s settlement and growth. By Seth Stein, Carol A. Stein, Eunice Blavascunas, and Jonas Kley RESEARCH REPORTS Satellite communications: Geocaches as interpretation 30 A pilot project in Everglades National Park examines visitor use of a park- ON THE COVER sponsored geocaching program and demonstrates interpretive benefits. A Mazama newt swims By Larry Perez and Rudy Beotegui toward the surface of Crater Lake, Oregon. This endemic species' Tick surveillance and disease prevention on the Appalachian Trail 36 liquid habitat is as clear and A study compares the occurrence of ticks in shelters and camping areas with that on the clean as nearly any on Earth, yet trailside along the entire length of the Appalachian Trail, where tickborne diseases are one it faces increasing competition of the greatest health hazards to hikers; the article also discusses preventive measures. from a nonnative predator. By Karl Ford, Robyn Nadolny, Ellen Stromdahl, and Graham Hickling COPYRIGHT JEREMY MONROE, FRESHWATERS ILLUSTRATED 4 PARK SCIENCE • VOLUME 32 • NUMBER 1 • SUMMER 2015 GABRIELLE DIAMOND COLORADO STATE UNIVERSITY AND USGS/SARAH J. GARZA NPS/TAMARA BLETT 49 57 71 Parks, pikas, and physiological stress: Implications for long-term monitoring of an NPS climate-sensitive sentinel species 42 UPCOMING ISSUES Baseline values of physiological stress can be incorporated into monitoring plans for pikas, Fall 2015 providing park managers with additional information related to the vulnerability of this Seasonal issue. November release. climate-sensitive model species that occurs within a large number of western parks. In production By Jennifer L. Wilkening and Chris Ray Winter 2015–2016 Survey of an endangered bat roost at Coronado Seasonal issue. February release. Contributor’s deadline: 15 October National Memorial, Arizona 49 After installation of bat-compatible steel gates at an abandoned mine, video Spring 2016 camcorder surveys of lesser long-nosed bat activity provide valuable insight Seasonal issue. June release. into management of this species on National Park Service lands. Contributor’s deadline: 15 February By Amanda Best, Gabrielle Diamond, Joel Diamond, Debbie Buecher, Ronnie Sidner, David Cerasale, and James Tress Jr. Visit http://www.nature.nps.gov /ParkScience for author guidelines or With contributions from Linda Dansby, Jason Mateljak, Adam contact the editor ([email protected]
Recommended publications
  • HIGHWAY DEPARTMENT: an Inventory of Its State Park Maps

    HIGHWAY DEPARTMENT: an Inventory of Its State Park Maps

    MINNESOTA HISTORICAL SOCIETY Minnesota State Archives HIGHWAY DEPARTMENT An Inventory of Its State Park Maps OVERVIEW OF THE RECORDS Agency: Minnesota. Dept. of Highways. Series Title: State park maps, Dates: 1922. Abstract: Blueprint maps showing boundaries and facilities in state parks. Quantity: 22 items in oversize folder. Location: A3/ov4 Drawer 2 SCOPE AND CONTENTS OF THE RECORDS Blueprint maps showing boundaries and facilities in various state parks, with proposed expansions of the park's land area or the addition of facilities. Most show plot plans and give elevation information. The maps were drawn by the Highway Department on orders of Governor J. A. O. Preus for use in legislative deliberations regarding park budgets, according to information printed on the maps. RELATED MATERIALS Related materials: Later state park maps, created by the state Conservation Department, are found with that department's records. INDEX TERMS This collection is indexed under the following headings in the catalog of the Minnesota Historical Society. Researchers desiring materials about related topics, persons or places should search the catalog using these headings. Topics: Mapping. Parks--Minnesota--Maps. Parks--Minnesota--Finance. Types of Documents: Hghwy005.inv HIGHWAY DEPARTMENT. State Park Maps, 1922. p. 2 Maps--Minnesota. Site plans--Minnesota. ADMINISTRATIVE INFORMATION Preferred Citation: [Indicate the cited item here]. Minnesota. Dept. of Highways. State park maps, 1922. Minnesota Historical Society. State Archives. See the Chicago Manual of Style for additional examples. Accession Information: Accession number(s): 991-52 Processing Information: PALS ID No.: 0900036077 RLIN ID No.: MNHV94-A228 ITEM LIST Note to Researchers: To request materials, please note the location and drawer number shown below.
  • Tectonic Imbrication and Foredeep Development in the Penokean

    Tectonic Imbrication and Foredeep Development in the Penokean Orogen, East-Central Minnesota An Interpretation Based on Regional Geophysics and the Results of Test-Drilling The Penokean Orogeny in Minnesota and Upper Michigan A Comparison of Structural Geology U.S. GEOLOGICAL SURVEY BULLETIN 1904-C, D AVAILABILITY OF BOOKS AND MAPS OF THE U.S. GEOLOGICAL SURVEY Instructions on ordering publications of the U.S. Geological Survey, along with prices of the last offerings, are given in the cur­ rent-year issues of the monthly catalog "New Publications of the U.S. Geological Survey." Prices of available U.S. Geological Sur­ vey publications released prior to the current year are listed in the most recent annual "Price and Availability List." Publications that are listed in various U.S. Geological Survey catalogs (see back inside cover) but not listed in the most recent annual "Price and Availability List" are no longer available. Prices of reports released to the open files are given in the listing "U.S. Geological Survey Open-File Reports," updated month­ ly, which is for sale in microfiche from the U.S. Geological Survey, Books and Open-File Reports Section, Federal Center, Box 25425, Denver, CO 80225. Reports released through the NTIS may be obtained by writing to the National Technical Information Service, U.S. Department of Commerce, Springfield, VA 22161; please include NTIS report number with inquiry. Order U.S. Geological Survey publications by mail or over the counter from the offices given below. BY MAIL OVER THE COUNTER Books Books Professional Papers, Bulletins, Water-Supply Papers, Techniques of Water-Resources Investigations, Circulars, publications of general in­ Books of the U.S.
  • Potential Capacity for Geologic Carbon Sequestration in the Midcontinent Rift System in Minnesota

    Potential Capacity for Geologic Carbon Sequestration in the Midcontinent Rift System in Minnesota

    MINNESOTA GEOLOGICAL SURVEY Harvey Thorleifson, Director POTENTIAL CAPACITY FOR GEOLOGIC CARBON SEQUESTRATION IN THE MIDCONTINENT RIFT SYSTEM IN MINNESOTA L. Harvey Thorleifson, Minnesota Geological Survey, Editor A report prepared in fulfillment of the requirements of Minnesota Legislative Session 85 Bill S. F. 2096 Minnesota Geological Survey Open File Report OFR-08-01 University of Minnesota Saint Paul – 2008 Cover figure credit: Iowa Geological Survey 2 POTENTIAL CAPACITY FOR GEOLOGIC CARBON SEQUESTRATION IN THE MIDCONTINENT RIFT SYSTEM IN MINNESOTA 3 This open file is accessible from the web site of the Minnesota Geological Survey (http://www.geo.umn.edu/mgs/) as a PDF file readable with Acrobat Reader. Date of release: 24 January 2008 Recommended citation Thorleifson, L. H., ed., 2008, Potential capacity for geologic carbon sequestration in the Midcontinent Rift System in Minnesota, Minnesota Geological Survey Open File Report OFR-08-01, 138 p Minnesota Geological Survey 2642 University Ave West Saint Paul, Minnesota 55114-1057 Telephone: 612-627-4780 Fax: 612-627-4778 Email address: [email protected] Web site: http://www.geo.umn.edu/mgs/ ©2008 by the 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, public assistance status, veteran status, or sexual orientation. 4 CONTENTS EXECUTIVE SUMMARY L. H. Thorleifson . 7 INTRODUCTION L. H. Thorleifson . 11 CLIMATE CHANGE L. H. Thorleifson . 11 Introduction . 11 Intergovernmental Panel on Climate Change (IPCC) .
  • U–Pb Zircon (SHRIMP) Ages for the Lebombo Rhyolites, South Africa

    U–Pb Zircon (SHRIMP) Ages for the Lebombo Rhyolites, South Africa

    Journal of the Geological Society, London, Vol. 161, 2004, pp. 547–550. Printed in Great Britain. 2000) and the ages corroborate and further strengthen the SPECIAL chronology of the Lebombo stratigraphy. The rapid eruption of the Karoo succession is thought to have been responsible for trigger- U–Pb zircon (SHRIMP) ing the early Toarcian extinction event (Hesselbo et al. 2000). Geological setting. The Karoo Supergroup succession along the ages for the Lebombo Lebombo monocline is highlighted in Figure 1. The oldest phase of Karoo volcanism is marked by the Mashikiri nephelinites, rhyolites, South Africa: which unconformably overlie Jurassic Clarens Formation sand- stones (Fig. 2). The nephelinites have been dated at 182.1 Æ refining the duration of 1.6 Ma (40Ar/39Ar plateau age; Duncan et al. 1997) and form a lava succession up to 170 m thick (Bristow 1984). These rocks Karoo volcanism are confined to the northern part of the Lebombo rift and are absent along the central and southern sections. The nephelinites T. R. RILEY1,I.L.MILLAR2, are conformably overlain by picrites and picritic basalts of the 3 1 Letaba Formation, although in the southern Lebombo the picrites M. K. WATKEYS ,M.L.CURTIS, directly overlie the Clarens Formation. The picrites overlap in 1 3 P. T. LEAT , M. B. KLAUSEN & age (182.7 Æ 0.8 Ma; Duncan et al. 1997) with the Mashikiri C. M. FANNING4 nephelinites and are believed to form a succession up to 4 km in thickness. 1British Antarctic Survey, High Cross, Madingley Road, The Letaba Formation picrites are in turn overlain by a major Cambridge, CB3 0ET, UK (e-mail: [email protected]) succession (4–5 km thick) of low-MgO basalts, termed the Sabie 2British Antarctic Survey c/o NERC Isotope Geosciences River Basalt Formation (Cleverly & Bristow 1979).
  • Scanned Using Book Scancenter Flexi

    Scanned Using Book Scancenter Flexi

    Fiftk Annual Report OF THE -New Hampskire Timkerland Owners Association II NINETEEN HUNDRED AND FIFTEEN S«cretary-Treasurer’s Report Balance from 1914.................................... $ 255 33 Assessment (%c)..................................... 7,053 33 Sale Deer Mt. Lookout Station................ 238 00 OFFICERS W. R. Brown, President, Berlin Mills Co. $7,546 66 expenditures L. S. Tainter, Vice-President, Publishers Paper Co. Patrol........................................................ $6,059 27 Morrison, W. H. Secretary-Treasurer, Telephone Repairs.................. 101 04 Gorham, N. H. Exchange and Tolls................................. 86 23 Advertising............................................... 25 00 Salary September and October............... 200 00 DIRECTORS Traveling Expense................................... 92 23 Office Expense........................................ i07 55 W. R. Brown, Berlin Mills Co. Miscellaneous Expense........................... 27 75 L? S. Tainter, Publishers Paper Co. C. C. Wilson, Odell Manufacturing Co. $6,699 07 Balance...................................................... 847 59 E. E. Amey, International Paper Co. Due account unpaid assessments........... 5 25 H. G. Philbrook, Connecticut Valley Co. $852 84 The number of members belonging to the Association this season is thirty-two, and the total acreage owned by them is 930,540 acres. The weather conditions having been so unusu­ ally favorable the past season it has been possible' a to limit the total assessment to three-fourths cents per acre, as in 1914. The Conway Lumber Company and the Pub­ lishers Paper Company have paid assessments the The 1915 Fire Season past season on the lands purchased of them by the Owing to the very early spring, a number of Federal Government as the transaction had not the Patrolmen had to be employed much earlier been completed, thereby making the acreage of the than in 1914.
  • Midcontinent Rift

    Midcontinent Rift

    VOL. 97 NO. 18 15 SEP 2016 NORTH AMERICA’S MIDCONTINENT RIFT Augmented Reality for Earth Science Quirky Geoscience Tunes Future of AGU Meetings NEW in Fall 2016 GeoHealth will foster the intersection of Earth science disciplines (Earth processes, climate change, atmospheric and ocean sciences, hydrology, among others), with those of the health sciences, defined broadly (environmental and ecosystem health and services, human and agricultural health, geomedicine, and the impact of natural hazards). Now Accepting Applications for Two Editors in Chief of GeoHealth AGU is launching GeoHealth under Founding Editor Rita R. Colwell. We are seeking applications for two dynamic, well-organized scientists with high editorial standards and strong leadership skills to serve 4-year terms as the editors in chief (EICs) to lead this exciting journal starting in 2017 and beyond. One editor’s main area of focus will be on the geosciences, while the other editor’s main area of focus will be on health. This is an important opportunity to help shape and lead this increasingly important, cross-cutting discipline. The EICs will be the principal architects of the scientific content of the journal. They are active scientists, well-known and well-regarded in their respective discipline. The EICs must be active in soliciting the best science from the best scientists to be published in the journal. Working with the other editors and AGU staff, EICs are the arbiter of the content of the journal. Among other functions, EICs will be responsible for: • Acting as an ambassador to the author/editor/reviewer/scientist community. • Setting the strategy for the journal.
  • Isanti County Parks and Recreation Plan (PDF)

    Isanti County Parks and Recreation Plan (PDF)

    ISANTI COUNTY PARKS & R ECREATION PLAN ISANTI COUNTY PARKS AND RECREATION COMMISSION FINAL REPORT JANUARY, 2008 PREPARED BY THE CENTER FOR RURAL DESIGN, UNIVERSITY OF MINNESOTA Isanti County Parks and Recreation Plan Study Team Members/Roles: Principal Investigator: Dewey Thorbeck, Director, Center for Rural Design Center for Rural Design Team Members: Steve Roos, Senior Research Fellow Tracey Sokolski, Research Fellow Steering Committee Members: Bill Carlson, Co-Chair Joe Crocker, Co-Chair Maureen Johnson, Secretary Bonita Torpe Carol Urness George Larson George Wimmer Heidi Eaves Joan Lenzmeier Larae Klocksien Maurie Anderson Myrl Moran Steve Nelson Tom Pagel Wayne Anderson Dennis Olson Acknowledgements: This project could not have been accomplished without the cooperation and knowledge of the Isanti County Steering Committee. In addition, we owe thanks to the Isanti County Parks and Recreation Commission especially Co-Chair Bill Carlson, Co-Chair Joe Crocker and Secretary Maureen Johnson for facilitating the Committee’s work and the community workshops. January 2008 Center for Rural Design College of Design and College of Food, Agricultural and Natural Resources Sciences University of Minnesota T ABLE OF CONTENTS SECTION 1: INTRODUCTION Pg. 9 SECTION 2: RECREATIONAL OPPORTUNITIES IN ISANTI COUNTY Pg. 19 SECTION 3: GOALS AND POLICIES Pg. 85 SECTION 4: PLANNING AND ACQUISITION Pg. 97 SECTION 5: FINANCIAL SUPPORT Pg. 109 SECTION 6: BENEFITS Pg. 115 SECTION 7: NATURAL RESOURCE MANAGEMENT, Isanti County MAINTENANCE AND PROTECTION Pg. 121 APPENDICES APPENDIX A: REFERENCES & ABBREVIATIONS Pg. 125 APPENDIX B: TREND DATA Pg. 129 APPENDIX C: SYNOPSIS OF PUBLIC ENGAGEMENT Pg. 133 ADDENDUM 1: ISANTI COUNTY PARKS AND BIKE PATH MASTER PLAN Parks Plan 2008 1 INDEX O F FIGURES Figure 1.
  • The East African Rift System in the Light of KRISP 90

    The East African Rift System in the Light of KRISP 90

    ELSEVIER Tectonophysics 236 (1994) 465-483 The East African rift system in the light of KRISP 90 G.R. Keller a, C. Prodehl b, J. Mechie b,l, K. Fuchs b, M.A. Khan ‘, P.K.H. Maguire ‘, W.D. Mooney d, U. Achauer e, P.M. Davis f, R.P. Meyer g, L.W. Braile h, 1.0. Nyambok i, G.A. Thompson J a Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79968-0555, USA b Geophysikalisches Institut, Universitdt Karlwuhe, Hertzstrasse 16, D-76187Karlsruhe, Germany ’ Department of Geology, University of Leicester, University Road, Leicester LEl 7RH, UK d U.S. Geological Survey, Office of Earthquake Research, 345 Middlefield Road, Menlo Park, CA 94025, USA ’ Institut de Physique du Globe, Universite’ de Strasbourg, 5 Rue Ret& Descartes, F-67084 Strasbourg, France ‘Department of Earth and Space Sciences, University of California at Los Angeles, Los Angeles, CA 90024, USA ’ Department of Geology and Geophysics, University of Wuconsin at Madison, Madison, WI 53706, USA h Department of Earth and Atmospheric Sciences, Purdue University, West Lafayette, IN 47907, USA i Department of Geology, University of Nairobi, P.O. Box 14576, Nairobi, Kenya ’ Department of Geophysics, Stanford University, Stanford, CA 94305, USA Received 21 September 1992; accepted 8 November 1993 Abstract On the basis of a test experiment in 1985 (KRISP 85) an integrated seismic-refraction/ teleseismic survey (KRISP 90) was undertaken to study the deep structure beneath the Kenya rift down to depths of NO-150 km. This paper summarizes the highlights of KRISP 90 as reported in this volume and discusses their broad implications as well as the structure of the Kenya rift in the general framework of other continental rifts.
  • RV Sites in the United States Location Map 110-Mile Park Map 35 Mile

    RV Sites in the United States Location Map 110-Mile Park Map 35 Mile

    RV sites in the United States This GPS POI file is available here: https://poidirectory.com/poifiles/united_states/accommodation/RV_MH-US.html Location Map 110-Mile Park Map 35 Mile Camp Map 370 Lakeside Park Map 5 Star RV Map 566 Piney Creek Horse Camp Map 7 Oaks RV Park Map 8th and Bridge RV Map A AAA RV Map A and A Mesa Verde RV Map A H Hogue Map A H Stephens Historic Park Map A J Jolly County Park Map A Mountain Top RV Map A-Bar-A RV/CG Map A. W. Jack Morgan County Par Map A.W. Marion State Park Map Abbeville RV Park Map Abbott Map Abbott Creek (Abbott Butte) Map Abilene State Park Map Abita Springs RV Resort (Oce Map Abram Rutt City Park Map Acadia National Parks Map Acadiana Park Map Ace RV Park Map Ackerman Map Ackley Creek Co Park Map Ackley Lake State Park Map Acorn East Map Acorn Valley Map Acorn West Map Ada Lake Map Adam County Fairgrounds Map Adams City CG Map Adams County Regional Park Map Adams Fork Map Page 1 Location Map Adams Grove Map Adelaide Map Adirondack Gateway Campgroun Map Admiralty RV and Resort Map Adolph Thomae Jr. County Par Map Adrian City CG Map Aerie Crag Map Aeroplane Mesa Map Afton Canyon Map Afton Landing Map Agate Beach Map Agnew Meadows Map Agricenter RV Park Map Agua Caliente County Park Map Agua Piedra Map Aguirre Spring Map Ahart Map Ahtanum State Forest Map Aiken State Park Map Aikens Creek West Map Ainsworth State Park Map Airplane Flat Map Airport Flat Map Airport Lake Park Map Airport Park Map Aitkin Co Campground Map Ajax Country Livin' I-49 RV Map Ajo Arena Map Ajo Community Golf Course Map
  • The End of Midcontinent Rift Magmatism and the Paleogeography of Laurentia

    The End of Midcontinent Rift Magmatism and the Paleogeography of Laurentia

    THEMED ISSUE: Tectonics at the Micro- to Macroscale: Contributions in Honor of the University of Michigan Structure-Tectonics Research Group of Ben van der Pluijm and Rob Van der Voo The end of Midcontinent Rift magmatism and the paleogeography of Laurentia Luke M. Fairchild1, Nicholas L. Swanson-Hysell1, Jahandar Ramezani2, Courtney J. Sprain1, and Samuel A. Bowring2 1DEPARTMENT OF EARTH AND PLANETARY SCIENCE, UNIVERSITY OF CALIFORNIA, BERKELEY, CALIFORNIA 94720, USA 2DEPARTMENT OF EARTH, ATMOSPHERIC AND PLANETARY SCIENCES, MASSACHUSETTS INSTITUTE OF TECHNOLOGY, CAMBRIDGE, MASSACHUSETTS 02139, USA ABSTRACT Paleomagnetism of the North American Midcontinent Rift provides a robust paleogeographic record of Laurentia (cratonic North America) from ca. 1110 to 1070 Ma, revealing rapid equatorward motion of the continent throughout rift magmatism. Existing age and paleomagnetic constraints on the youngest rift volcanic and sedimentary rocks have been interpreted to record a slowdown of this motion as rifting waned. We present new paleomagnetic and geochronologic data from the ca. 1090–1083 Ma “late-stage” rift volcanic rocks exposed as the Lake Shore Traps (Michigan), the Schroeder-Lutsen basalts (Minnesota), and the Michipicoten Island Formation (Ontario). The paleomagnetic data allow for the development of paleomagnetic poles for the Schroeder-Lutsen basalts (187.8°E, 27.1°N; A95 = 3.0°, N = 50) and the Michipicoten Island Formation (174.7°E, 17.0°N; A95 = 4.4°, N = 23). Temporal constraints on late-stage paleomagnetic poles are provided by high-precision, 206Pb-238U zircon dates from a Lake Shore Traps andesite (1085.57 ± 0.25 Ma; 2σ internal errors), a Michipicoten Island Formation tuff (1084.35 ± 0.20 Ma) and rhyolite (1083.52 ± 0.23 Ma), and a Silver Bay aplitic dike from the Beaver Bay Complex (1091.61 ± 0.14 Ma), which is overlain by the Schroeder-Lutsen basalt flows.
  • MIDCONTINENT RIFT SYSTEM BIBLIOGRAPHY by Steven A

    MIDCONTINENT RIFT SYSTEM BIBLIOGRAPHY by Steven A

    MIDCONTINENT RIFT SYSTEM BIBLIOGRAPHY By Steven A. Hauck December 1995 Technical Report NRRI/TR-95/33 Funded by the Natural Resources Research Institute In Preparation for the 1995 International Geological Correlation Program Project 336 Field Conference in Duluth, MN Natural Resources Research Institute University of Minnesota, Duluth 5013 Miller Trunk Highway Duluth, MN 55811-1442 TABLE OF CONTENTS INTRODUCTION ................................................... 1 THE DATABASE .............................................. 1 Use of the PAPYRUS Retriever Program (Diskette) .............. 3 Updates, Questions, Comments, Etc. ......................... 3 ACKNOWLEDGEMENTS ....................................... 4 MIDCONTINENT RIFT SYSTEM BIBLIOGRAPHY ......................... 5 AUTHOR INDEX ................................................. 191 KEYWORD INDEX ................................................ 216 i This page left blank intentionally. ii INTRODUCTION The co-chairs of the IGCP Project 336 field conference on the Midcontinent Rift System felt that a comprehensive bibliography of articles relating to a wide variety of subjects would be beneficial to individuals interested in, or working on, the Midcontinent Rift System. There are 2,543 references (>4.2 MB) included on the diskette at the back of this volume. PAPYRUS Bibliography System software by Research Software Design of Portland, Oregon, USA, was used in compiling the database. A retriever program (v. 7.0.011) for the database was provided by Research Software Design for use with the database. The retriever program allows the user to use the database without altering the contents of the database. However, the database can be used, changed, or augmented with a complete version of the program (ordering information can be found in the readme file). The retriever program allows the user to search the database and print from the database. The diskette contains compressed data files.
  • WISCONSIN CONSERVATION COMMISSION 223 (2) Nothing In

    WISCONSIN CONSERVATION COMMISSION 223 (2) Nothing In

    WISCONSIN CONSERVATION COMMISSION 223 (2) Nothing in this section shall prohibit or restrict the use of dogs in field trial areas or for hunting purposes in any area which is open to hunting. History: Cr. Register, June, 1964, No. 102, eff. 7-1-64; am. Register, June, 1965, No. 114, eff. 7-1-65. WCD 45.06 Fires. (1) It shall be unbwful for any person to start, tend or maintain any fire or to burn any refuse except at designated fireplaces in any state park, state park recreation area, improved campsite in any state forest, fish hatchery or the State Experimental Game and Fur Farm. The aforementioned is also unlawful when fireplaces are provided at other campsites, picnic grounds and other designated similar public use areas on state forest lands or other lands under the management, supervision and control of the state conservation commission of Wisconsin. (2) It shall be unlawful for any person to leave any fire unat­ tended, 01' to throwaway any matches, cigarettes, cigars, 01' pipe ashes 01' any embers without first extinguishing them, 01' to start, tend or use in any manner any fire contrary to posted notice on any lands or property under the management, supervision and control of the commission. History: Cr. Register, June, 1964, No. 102, eff. 7-1-64; am. Register, June, 1965, No. 114, eff. 7-1-65. WCD 45.07 Peddling and soliciting. (1) It shall be unllawful for any person to peddle or solicit business of any nature Whatever, 01' to distribute handbills 01' other advertising matter, to post unauthor­ ized signs on any lands, structures, or property under the manage­ ment, supervision and control of the commission or to use such lands, structures or property as a base of commercial operations for solicit­ ing or conducting business, peddling 01' providing services within or outside of such lands, structures or property unless first authorized in writing by the state conservation commission 01' its duly author­ ized agents.