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Ophiolitic detritus in the Upper Ordovician flysch of Notre Dame Bay and its bearing on the tectonic evolution of western Newfoundland

1979; Geological Society of America; Volume: 7; Issue: 1 Linguagem: Inglês

10.1130/0091-7613(1979)7 2.0.co;2

1943-2682

K. D. Nelson, John Casey,

Geochemistry and Elemental Analysis

Research Article| January 01, 1979 Ophiolitic detritus in the Upper Ordovician flysch of Notre Dame Bay and its bearing on the tectonic evolution of western Newfoundland K. Douglas Nelson; K. Douglas Nelson 1Department of Geological Sciences, State University of New York at Albany, 1400 Washington Avenue, Albany, New York 12222 Search for other works by this author on: GSW Google Scholar John F. Casey John F. Casey 1Department of Geological Sciences, State University of New York at Albany, 1400 Washington Avenue, Albany, New York 12222 Search for other works by this author on: GSW Google Scholar Author and Article Information K. Douglas Nelson 1Department of Geological Sciences, State University of New York at Albany, 1400 Washington Avenue, Albany, New York 12222 John F. Casey 1Department of Geological Sciences, State University of New York at Albany, 1400 Washington Avenue, Albany, New York 12222 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1979) 7 (1): 27–31. https://doi.org/10.1130/0091-7613(1979)7 2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation K. Douglas Nelson, John F. Casey; Ophiolitic detritus in the Upper Ordovician flysch of Notre Dame Bay and its bearing on the tectonic evolution of western Newfoundland. Geology 1979;; 7 (1): 27–31. doi: https://doi.org/10.1130/0091-7613(1979)7 2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Samples from the Upper Ordovician graywacke-shale sequence in western Notre Dame Bay, Newfoundland, contain trace quantities of detrital chromite. The age and provenance of these sedimentary rocks indicate that the chromite was derived from the general area of the ophiolite bodies now exposed in western Newfoundland. These data place a new constraint on tectonic reconstructions of the area for the Ordovician Period. Our analysis of the stratigraphy in Notre Dame Bay, together with recently published isotopic dates for both the Eastern Fleur de Lys terrane and Notre Dame Bay area is compatible with the hypothesis that ophiolite obduction in western Newfoundland resulted from the collision of an island arc with a passive continental margin during Middle Ordovician time. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.