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- catalog abstract "The Early Proterozoic Michigamme Formation of northern Michigan was deposited in the southeastern part of the Animikie basin. The formation conformably overlies the Goodrich Quartzite and comprises three widespread members a lower member of thin-bedded shale, siltstone, and sandstone; the Bijiki Iron-formation Member; and an upper member of tur- biditic graywacke, siltstone, and mudstone and a few local members. The Goodrich Quartzite is interpreted as having been deposited in a tidally influenced shallow marine environ- ment. The lower member of the Michigamme is interpreted as having been deposited in a tidally influenced environment, the iron-formation member as having been deposited below wave base in somewhat deeper water, and the upper member as having been deposited in still deeper water with turbidity currents being a major depositional mechanism. Several lines of evidence including paleocurrents, paleo- geographic setting, and neodymium isotopes suggest that the graywacke of the southern part of the outcrop area was derived from the south (Early Proterozoic Wisconsin magmatic terranes, Archean miniplates, and older Early Proterozoic sedimentary units formed on the continental margin), and that the graywacke in the northern area was derived from an Archean terrane to the north. The tectonic model that best fits the available data is a northward-migrating foreland basin.".
- catalog alternative "Regional stratigraphic implications and suggested correlations".
- catalog contributor b6754703.
- catalog coverage "Goodrich Quartzite (Mich.)".
- catalog coverage "Michigamme Formation (Mich. and Wis.)".
- catalog created "1994.".
- catalog date "1994".
- catalog date "1994.".
- catalog dateCopyrighted "1994.".
- catalog description "Includes bibliographical references.".
- catalog description "The Early Proterozoic Michigamme Formation of northern Michigan was deposited in the southeastern part of the Animikie basin. The formation conformably overlies the Goodrich Quartzite and comprises three widespread members a lower member of thin-bedded shale, siltstone, and sandstone; the Bijiki Iron-formation Member; and an upper member of tur- biditic graywacke, siltstone, and mudstone and a few local members. The Goodrich Quartzite is interpreted as having been deposited in a tidally influenced shallow marine environ- ment. The lower member of the Michigamme is interpreted as having been deposited in a tidally influenced environment, the iron-formation member as having been deposited below wave base in somewhat deeper water, and the upper member as having been deposited in still deeper water with turbidity currents being a major depositional mechanism. Several lines of evidence including paleocurrents, paleo- geographic setting, and neodymium isotopes suggest that the graywacke of the southern part of the outcrop area was derived from the south (Early Proterozoic Wisconsin magmatic terranes, Archean miniplates, and older Early Proterozoic sedimentary units formed on the continental margin), and that the graywacke in the northern area was derived from an Archean terrane to the north. The tectonic model that best fits the available data is a northward-migrating foreland basin.".
- catalog extent "iv, 31 p. :".
- catalog isPartOf "Contributions to Precambrian geology of Lake Superior region ; ch. R".
- catalog isPartOf "U.S. Geological Survey bulletin ; 1904-R".
- catalog issued "1994".
- catalog issued "1994.".
- catalog language "eng".
- catalog publisher "Denver, CO : U.S. Geological Survey ; Washington : U.S. G.P.O.,".
- catalog spatial "Goodrich Quartzite (Mich.)".
- catalog spatial "Michigamme Formation (Mich. and Wis.)".
- catalog spatial "Michigan.".
- catalog subject "557.3 s 551.7/15/09774 20".
- catalog subject "Geology Michigan.".
- catalog subject "Geology, Stratigraphic Proterozoic.".
- catalog subject "QE75 .B9 no. 1904-R QE653.5".
- catalog title "Regional stratigraphic implications and suggested correlations".
- catalog title "Sedimentology and provenance of the Early Proterozoic Michigamme Formation and Goodrich Quartzite, northern Michigan : regional stratigraphic implications and suggested correlations / by Richard W. Ojakangas.".
- catalog type "text".