Research Article| September 01, 1989 Tectono-stratigraphic terranes in Cape Breton Island, Nova Scotia: Implications for the configuration of the northern Appalachian orogen Sandra M. Barr; Sandra M. Barr 1Department of Geology, Acadia University, Wolfville, Nova Scotia B0P 1X0, Canada Search for other works by this author on: GSW Google Scholar Robert P. Raeside Robert P. Raeside 1Department of Geology, Acadia University, Wolfville, Nova Scotia B0P 1X0, Canada Search for other works by this author on: GSW Google Scholar Author and Article Information Sandra M. Barr 1Department of Geology, Acadia University, Wolfville, Nova Scotia B0P 1X0, Canada Robert P. Raeside 1Department of Geology, Acadia University, Wolfville, Nova Scotia B0P 1X0, Canada Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1989) 17 (9): 822–825. https://doi.org/10.1130/0091-7613(1989)017<0822:TSTICB>2.3.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 Sandra M. Barr, Robert P. Raeside; Tectono-stratigraphic terranes in Cape Breton Island, Nova Scotia: Implications for the configuration of the northern Appalachian orogen. Geology 1989;; 17 (9): 822–825. doi: https://doi.org/10.1130/0091-7613(1989)017<0822:TSTICB>2.3.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 Cape Breton Island is divided into four terranes on the basis of contrasts in pre-Carboniferous geology. The Blair River Complex in the north is an exposure of North American Grenvillian basement, analogous to the Humber zone basement in Newfoundland. Ordovician to Devonian metavolcanic, metasedimentary, gneissic, and granitic rocks of the Aspy terrane are correlative with parts of the Gander terrane of Newfoundland and New Brunswick. The Bras d'Or terrane, characterized by low-pressure gneisses, a carbonate-clastic platform sequence, and late Precambrian-Early Cambrian plutons, may be correlative with units previously included in the Gander terrane in southern Newfoundland and the Avalon terrane in southern New Brunswick. The Mira terrane in southeastern Cape Breton Island, including late Precambrian to Early Cambrian volcanic and sedimentary sequences and fossiliferous Cambrian-Ordovician units, is clearly part of the Avalon terrane. Therefore, with the exception of the Dunnage terrane, which is not represented in Cape Breton Island, the terranes of Newfoundland continue through Cape Breton Island. They are offset to the northwest to the mainland part of the Appalachian orogen in New Brunswick. 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.
No takes yet. Share an insight, caveat, or question.
Barr et al. (1989) studied this question.