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Permanent link (DOI): https://doi.org/10.7939/R39882T9C

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Cambrian-Ordovician successions and detrital zircon geochronology of North Wales and Nova Scotia Open Access

Descriptions

Other title
Subject/Keyword
Welsh Basin
Detrital Zircon Geochronology
Meguma terrane
Provenance
Appalachians
Caledonides
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Pothier, Hayley Dawn
Supervisor and department
Waldron, John W. F. (Department of Earth and Atmospheric Sciences)
Examining committee member and department
Waldron, John W. F. (Department of Earth and Atmospheric Sciences)
Currie, Claire A. (Department of Physics)
Gingras, Murray K. (Department of Earth and Atmospheric Sciences)
DuFrane, S. Andrew (Department of Earth and Atmospheric Sciences)
Department
Department of Earth and Atmospheric Sciences
Specialization

Date accepted
2014-01-21T10:13:38Z
Graduation date
2014-06
Degree
Master of Science
Degree level
Master's
Abstract
The Appalachian-Caledonide Orogen resulted in the collision of Laurentia, Baltica and many peri-Gondwanan terranes, of which two share similar histories. The Harlech Dome and St. Tudwal’s Peninsula, in North Wales, and the Meguma Terrane of southern Nova Scotia, in Atlantic Canada, preserve similar sedimentary successions of Cambrian age. U-Pb detrital zircon data from these regions show a West African source in the Cambrian. In the Harlech Dome this is replaced by a probable Ganderian source by the Tremadocian. Correlative rocks of the Lumsden Dam Formation of the Meguma terrane lack this Ganderian signature. This suggests North Wales was juxtaposed with the Monian Composite Terrane by this time along the Menai Strait Fault System, which has a history of sinistral strike-slip movement. This strike-slip tectonic regime could also account for the removal of the Meguma Terrane from an original position adjacent to the Harlech Dome and the basins’ divergent Ordovician histories.
Language
English
DOI
doi:10.7939/R39882T9C
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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