 | | Report (issue) | | KEWEENAWAN) ON ISLE ROYALE, MICHIGAN Prepared in cooperation with the National Park Service GEOLOGICAL...Keweenawan) on Isle Royale, Michigan By N. KING HUBER GEOLOGY OF ISLE ROYALE NATIONAL PARK, MICHIGAN GEOLOGICAL...PAPER 754-C Prepared in cooperation with the National Park Service UNITED STATES GOVERNMENT PRINTING OFFICE...Lake Volcanics on the Keweenaw Peninsula__ 3 The Portage Lake Volcanics on Isle Royale ....................--------------·------------- 18 The Portage Lake Volcanics on Isle Royale--Continued Volcanic rocks-Continued Stratigraphic |  | | 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...the Bicentennial celebration: "to forge a new national commitment, a new spirit for '76, a spirit which...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 |  | | 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 (issue) | | cameo blank was so marked that the artist could not usa it in the regular course of his work, he would throw...ballast. The numerous specimens termed Brighton, Isle of Wight, Aberystwith, and Irish pebbles, as well...ardent mineral collector, we camped in a tourist park at Two Harbors, Minn., about 25 miles northeast...those much-desired pebbles were found. Leaving the park area, we strolled along the beach and it was not...route and entered the Michigan side of Lake Superior. On the beach at Essay Park, about two miles south |  | | Book (edition) | | ~ ele Or WHITMAN COLLEGE LIBRARY GEOLOGY OF NATIONAL PARKS PENROSE MEMORIAL LIBRARY Whitman College...Class of 1957 25th ~ Reunion Fund GEOLOGY OF NATIONAL PARKS Third Edition Ann G. Harris Youngstown...eastern tip of Anacapa Islands in Channel Islands National Park, California. The bedrock is volcanic. Photograph...Photograph courtesy Channel Islands National Park Collection. The drawings by Genevieve Shimer on pages 1...475, and 497 are maps of the national parks from A Guide to the National Parks—Their Landscape and Geology |  | | Book (edition) | | Minor time divisions are not included except for national parks where the terms significance. Adapted from...President, Director of National Book Program Alfred C. Grisanti Assistant Director of National Book Program Paul...Contents Preface xi Acknowledgments xiii U.S. National Parks Location Map xiv Part | ScENERY DEVELOPED...The Geologic View of Time 5 1. Grand Canyon National Park Geologic Features 10 Box 1.1 How Rocks Are...CLASSIFIED Geologic History 5. Canyonlands National Park 7 13 19 Box 1.2 AN OUTLINE OF THE GEOLOGIC |  | | Book (volume) | | Special acknowledgment is due the United States National Museum, in particular to Dr. George Switzer, for...Photographs and information on the Petrified Forest National Monument were supplied by Fred C. Fagergren, Superintendent...respect to Isle Royale National Park were rendered by Superintendent John G. Lewis and Park Historian...Historian Lloyd Abelson in the case of Pipestone National Monument. Information on gems and gemstones in the American...of Mines, Mining and Geology; on the State of Michigan by Robert W. Kelley of the Department of Conservation; |  | | Report (issue) | | Francisco, California. Daily Grass Valley Union, Nevada County, California. Daily Evening Gazette, Reno, Nevada...Standard, Eureka, Humboldt County, 1. 2. 3. 4. 5. 6. 10. 11. 12. County Tribune, California. California...California. Inyo Independent, Inyo County, California. Arizona Gazette, Phoenix, Arizona Territory. Ventura...interesting to note the composite character of the National and State exhibits what one is deficient in, another...of a CommisStill the World's Fair was a great national success in every sense sioner. except financially |  | | Journal (article/letter/editorial) | | showing"algal" and other organic (?) structures 1. Basal conglomerate(not everywherepresent) All these formations...carbonate member (locallybased by lenses of conglomerate, andgrit), in contactwith graniticrocksto the...appearto be preSteeprockin age. Steeprock Group Conglomerate,Grit, Arkose, and Greywacke.--A coarseclastic...ce. Actual contactsare rarely exposed. In Conglomerate bay (at the north endof Middle Arm) the basalbedsare...10 feet of this contactthe arkosepasses into conglomerate, which is continuously and perfectlyexposedin |  | | Report (volume) | | cientlfica Circular Classe classification Company, County Collections Committee Communications Comparative...Comparative consolidated Conference Congress, etc. conglomerate Conservation Contributions Cooperative correlation...NW______.._. new series nacional Nachrichten National, Natural naturforscher, naturforschende naturhistorisch...Abstracts nos. 5, 6. Bethlehem, Pa. Los Angeles County Museum: Publications nos. 4-7; Quarterly vol. 6...D. F. Michigan Academy of Science, Arts and Letters, Papers vol. 30. Ann Arbor, Mich. Michigan Geological |
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