Structural Geology Of Parautochthonous And Allochthonous Terranes Of The Penokean Orogeny In Upper Michigan
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Structural Geology Of Parautochthonous And Allochthonous Terranes Of The Penokean Orogeny In Upper Michigan
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Author : William J. Gregg
language : en
Publisher:
Release Date : 1993
Structural Geology Of Parautochthonous And Allochthonous Terranes Of The Penokean Orogeny In Upper Michigan written by William J. Gregg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Geology, Stratigraphic categories.
Structural Geology Of Parautochthonous And Allochthonous Terranes Of The Penokean Orogeny In Upper Michigan
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Author : William J. Gregg
language : en
Publisher:
Release Date : 1993
Structural Geology Of Parautochthonous And Allochthonous Terranes Of The Penokean Orogeny In Upper Michigan written by William J. Gregg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Geology, Stratigraphic categories.
U S Geological Survey Bulletin
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Author :
language : en
Publisher:
Release Date : 1983
U S Geological Survey Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Geology categories.
U S Geological Survey Bulletin
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Author :
language : en
Publisher:
Release Date : 1983
U S Geological Survey Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Geology categories.
U S Geological Survey Bulletin
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Author : Paul Kibler Sims
language : en
Publisher:
Release Date : 1983
U S Geological Survey Bulletin written by Paul Kibler Sims and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Faults (Geology) categories.
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.
Monthly Catalog Of United States Government Publications
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Author :
language : en
Publisher:
Release Date : 1994
Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Government publications categories.
Petrography And Geochemistry Of Early Proterozoic Granitoid Rocks In Wisconsin Magmatic Terranes Of Penokean Orogen Northern Wisconsin
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Author : Paul Kibler Sims
language : en
Publisher:
Release Date : 1993
Petrography And Geochemistry Of Early Proterozoic Granitoid Rocks In Wisconsin Magmatic Terranes Of Penokean Orogen Northern Wisconsin written by Paul Kibler Sims and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Geochemistry categories.
A reconnaissance study carried out in conjunction with regional geologic mapping.
Monthly Catalogue United States Public Documents
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Author :
language : en
Publisher:
Release Date : 1994
Monthly Catalogue United States Public Documents written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Government publications categories.
U S Geological Survey Bulletin
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Author : Gene L. LaBerge
language : en
Publisher:
Release Date : 1991
U S Geological Survey Bulletin written by Gene L. LaBerge and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Faults (Geology) categories.
A reconnaissance study carried out in conjunction with regional geologic mapping.
Sedimentology And Provenance Of The Early Proterozoic Michigamme Formation And Goodrich Quartzite Northern Michigan
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Author : Richard W. Ojakangas
language : en
Publisher:
Release Date : 1994
Sedimentology And Provenance Of The Early Proterozoic Michigamme Formation And Goodrich Quartzite Northern Michigan written by Richard W. Ojakangas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Geology categories.
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.