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Structural geology of the subprovince boundaries in the Archean Superior Province of northern Minnesota and adjacent Ontario

Robert L. Bauer, Dyanna M. Czeck, Peter J. Hudleston and Basil Tikoff
Structural geology of the subprovince boundaries in the Archean Superior Province of northern Minnesota and adjacent Ontario (in Archean to Anthropocene; field guides to the geology of the Mid-Continent of North America, James D. Miller (editor), George J. Hudak (editor), Chad Wittkop (editor) and Patrick I. McLauglin (editor))
Field Guide (Geological Society of America) (September 2011) 24: 203-241

Abstract

The geometric, kinematic, and deformational features along the subprovince boundaries of the Archean Superior Province are keys to understanding the tectonic amalgamation of the province. This field trip investigates the structural geology along two of the subprovince boundaries--the Wabigoon-Quetico and Quetico-Vermilion--of the Superior Craton. These boundaries separate the relatively high-grade gneisses of the Quetico Belt from typical low-grade granite-greenstone terranes to its north (Wabigoon) and south (Wawa). Both boundaries are characterized by different styles of transpressional deformation and strike-slip tectonism. Along the Wabigoon-Quetico boundary, deformation is recorded by a variety of structures controlled by competence contrast of heterogeneous lithologies at a variety of scales: from weak greenstones surrounding more competent gneiss domes to deformed polymictic conglomerates. Along the Quetico-Vermilion boundary, we will emphasize the role of plutonism and pluton geometry on subsequent deformation. Lastly, we characterize multiple deformation episodes in the Vermilion District in Minnesota.


ISSN: 2333-0937
EISSN: 2333-0945
Serial Title: Field Guide (Geological Society of America)
Serial Volume: 24
Title: Structural geology of the subprovince boundaries in the Archean Superior Province of northern Minnesota and adjacent Ontario
Title: Archean to Anthropocene; field guides to the geology of the Mid-Continent of North America
Author(s): Bauer, Robert L.Czeck, Dyanna M.Hudleston, Peter J.Tikoff, Basil
Author(s): Miller, James D.editor
Author(s): Hudak, George J.editor
Author(s): Wittkop, Chadeditor
Author(s): McLauglin, Patrick I.editor
Affiliation: University of Missouri, Department of Geological Sciences, Columbia, MO, United States
Affiliation: University of Minnesota-Duluth, Department of Geological Sciences, Duluth, MN, United States
Pages: 203-241
Published: 201109
Text Language: English
Publisher: Geological Society of America, Boulder, CO, United States
References: 116
Accession Number: 2012-009900
Categories: Structural geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sects., geol. sketch maps
N47°30'00" - N48°00'00", W92°34'60" - W91°45'00"
Secondary Affiliation: Natural Resources Research Institute, USA, United StatesMinnesota State University, USA, United StatesWisconsin Geological and Natural History Survey, USA, United StatesUniversity of Wisconsin-Milwaukee, USA, United StatesUniversity of Minnesota, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201205
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