Deep Seismic-Reflection Profile Across the Northern Appalachians

Research Article| February 01, 1986 Deep seismic reflection profile across the northern Appalachians C. E. Keen; C. E. Keen 1Atlantic Geoscience Centre, Geological Survey of Canada, Bedford Institute of Oceanography Dartmouth, Nova Scotia B2Y 4A2, Canada Search for other works by this author on: GSW Google Scholar M. J. Keen; M. J. Keen 1Atlantic Geoscience Centre, Geological Survey of Canada, Bedford Institute of Oceanography Dartmouth, Nova Scotia B2Y 4A2, Canada Search for other works by this author on: GSW Google Scholar B. Nichols; B. Nichols 1Atlantic Geoscience Centre, Geological Survey of Canada, Bedford Institute of Oceanography Dartmouth, Nova Scotia B2Y 4A2, Canada Search for other works by this author on: GSW Google Scholar I. Reid; I. Reid 1Atlantic Geoscience Centre, Geological Survey of Canada, Bedford Institute of Oceanography Dartmouth, Nova Scotia B2Y 4A2, Canada Search for other works by this author on: GSW Google Scholar G. S. Stockmal; G. S. Stockmal 1Atlantic Geoscience Centre, Geological Survey of Canada, Bedford Institute of Oceanography Dartmouth, Nova Scotia B2Y 4A2, Canada Search for other works by this author on: GSW Google Scholar S. P. Colman-Sadd; S. P. Colman-Sadd 2Department of Mines and Energy, Government of Newfoundland and Labrador, P.O. Box 4750, St. John's, Newfoundland AIC 5T7, Canada Search for other works by this author on: GSW Google Scholar S. J. O'Brien; S. J. O'Brien 2Department of Mines and Energy, Government of Newfoundland and Labrador, P.O. Box 4750, St. John's, Newfoundland AIC 5T7, Canada Search for other works by this author on: GSW Google Scholar H. Miller; H. Miller 3Department of Earth Sciences, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X5, Canada Search for other works by this author on: GSW Google Scholar G. Quinlan; G. Quinlan 3Department of Earth Sciences, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X5, Canada Search for other works by this author on: GSW Google Scholar H. Williams; H. Williams 3Department of Earth Sciences, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X5, Canada Search for other works by this author on: GSW Google Scholar J. Wright J. Wright 3Department of Earth Sciences, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X5, Canada Search for other works by this author on: GSW Google Scholar Geology (1986) 14 (2): 141–145. https://doi.org/10.1130/0091-7613(1986)14<141:DSRPAT>2.0.CO;2 Article history first online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation C. E. Keen, M. J. Keen, B. Nichols, I. Reid, G. S. Stockmal, S. P. Colman-Sadd, S. J. O'Brien, H. Miller, G. Quinlan, H. Williams, J. Wright; Deep seismic reflection profile across the northern Appalachians. Geology 1986;; 14 (2): 141–145. doi: https://doi.org/10.1130/0091-7613(1986)14<141:DSRPAT>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 A marine seismic reflection line across the northeast extremity of the Canadian Appalachians in Newfoundland indicates a collisional suture(?) in the lower crust beneath the central ophiolitic Dunnage terrane. The thrust and fold belt (miogeocline) above the Grenville basement, and the Dunnage and Gander tectonostratigraphic terranes all appear to be allochthonous with respect to lower crustal basement. The Gander-Avalon terrane boundary to the east is a near-vertical feature that penetrates the crust. The data also suggest that the ancient passive margin of North America extends eastward under the Dunnage terrane for about 70 km. The Newfoundland deep seismic experiment indicates major tectonic differences compared to results for the southern Appalachians. 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.