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Richard W. Ojakangas

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Sedimentology and provenance of the Early Proterozoic Michigamme Formation and Goodrich Quartzite, northern Michigan: regional stratigraphic implications and suggested correlations

by Richard W. Ojakangas First published in 1994 — 3 editions

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Basement Tectonics 10

by Richard W. Ojakangas, Albert B. Dickas, and Green, John C. First published in 2010 — 2 editions

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The earth, past& present

by Richard W. Ojakangas First published in 1976 — 2 editions
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Precambrian geology of the southern Canadian Shield and the eastern Baltic Shield: U.S.A.-U.S.S.R.-Canada joint seminar, August 21-23, 1990, Duluth, Minnesota

by Richard W. Ojakangas First published in 1991 — 1 edition

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Middle Proterozoic to Cambrian rifting, central North America

by Richard W. Ojakangas, Albert Brinkley Dickas, and Green, John C. First published in 1997 — 1 edition

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Early Proterozoic Rocks of the Great Lakes Region: Sudbury, Ontario, Canada to Duluth, Minnesota, U. S. a, July 1 - 7 1989

by G. B. Morey, Ken Card, Klaus Schulz, John S. Jasner, and Richard W. Ojakangas First published in 2013 — 1 edition

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Geology, sulfide mineralization, and geochemistry of the Birchdale-Indus area, Koochiching County, northwestern Minnesota

by Richard W. Ojakangas First published in 1977 — 1 edition

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Minnesota's geology

by Richard W. Ojakangas First published in 1982 — 1 edition

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Roadside geology of Minnesota

by Richard W. Ojakangas First published in 2009 — 1 edition

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Schaum's outline of theory and problems of introductory geology

by Richard W. Ojakangas First published in 1991 — 1 edition
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Roadside geology of Minnesota

by Richard W. Ojakangas First published in 2009 — 1 edition

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Minnesota's geology, by Richard W. Ojakangas and Charles L. Matsch

by Richard W. Ojakangas and Charles L. Matsch First published in 1982 — 1 edition

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OLID: OL718084A

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