Author: Paul J. Jr CarterPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 230
Book Description
Finite Strain Estimations for Archean Mona Schist Pillows and Early Proterozoic Enchantment Lake Formation Metawackes in the Eastern Upper Peninsula of Michigan
Author: Paul J. Jr CarterPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 230
Book Description
Regional Finite Strain Patterns in Proterozoic Slates and Quartzites
Author: David B. WestjohnPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 416
Book Description
U.S. Geological Survey Bulletin
Author: 36th Annual Institute on Lake Superior Geology
Author: Institute on Lake Superior Geology. MeetingPublisher:
ISBN:
Category : Geology, Stratigraphic
Languages : en
Pages : 306
Book Description
U.S. Geological Survey Bulletin
Author: Paul Kibler SimsPublisher:
ISBN:
Category : Faults (Geology)
Languages : en
Pages : 268
Book 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.
Masters Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1634
Book Description
Bibliography and Index of Geology
Author: Journal of Research of the U.S. Geological Survey
Author: Geological Survey (U.S.)Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 414
Book Description
Scientific notes and summaries of investigations in geology, hydrology, and related fields.
Sedimentology and Provenance of the Early Proterozoic Michigamme Formation and Goodrich Quartzite, Northern Michigan
Author: Richard W. OjakangasPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 40
Book 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.
Early sedimentary evolution of the Michigan Basin
Author: Paul A. CatacosinosPublisher: Geological Society of America
ISBN: 081372256X
Category : Science
Languages : en
Pages : 258
Book Description