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Distribution and characteristics of Taconian and Acadian deformation, southern Québec Appalachians

1994; Geological Society of America; Volume: 106; Issue: 9 Linguagem: Inglês

10.1130/0016-7606(1994)106 2.3.co;2

1943-2674

Alain Tremblay, Nicolas Pinet,

Geology and Paleoclimatology Research

Research Article| September 01, 1994 Distribution and characteristics of Taconian and Acadian deformation, southern Québec Appalachians ALAIN TREMBLAY; ALAIN TREMBLAY 1Centre géoscientifique de Québec, INRS-Géoressources, 2700 rue Einstein, Sainte-Foy, Québec G1V 4C7, Canada Search for other works by this author on: GSW Google Scholar NICOLAS PINET NICOLAS PINET 1Centre géoscientifique de Québec, INRS-Géoressources, 2700 rue Einstein, Sainte-Foy, Québec G1V 4C7, Canada Search for other works by this author on: GSW Google Scholar Author and Article Information ALAIN TREMBLAY 1Centre géoscientifique de Québec, INRS-Géoressources, 2700 rue Einstein, Sainte-Foy, Québec G1V 4C7, Canada NICOLAS PINET 1Centre géoscientifique de Québec, INRS-Géoressources, 2700 rue Einstein, Sainte-Foy, Québec G1V 4C7, Canada Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1994) 106 (9): 1172–1181. https://doi.org/10.1130/0016-7606(1994)106 2.3.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation ALAIN TREMBLAY, NICOLAS PINET; Distribution and characteristics of Taconian and Acadian deformation, southern Québec Appalachians. GSA Bulletin 1994;; 106 (9): 1172–1181. doi: https://doi.org/10.1130/0016-7606(1994)106 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 SocietyGSA Bulletin Search Advanced Search Abstract The regional structure of the southern Québec Appalachians is redefined in terms of superposed Taconian and Acadian deformation events. Taconian structures and metamorphism dominate in Cambro-Ordovician rocks west of the Baie Verte-Brompton Line (BBL). The Taconian orogen is subdivided into a northwestern external zone, composed of fault-imbricated continental rocks displaying single-phase foreland structures, and a south-eastern internal zone of polydeformed and metamorphosed continental and oceanic rocks. The structural relationships of Cambro-Ordovician rocks astride the BBL demonstrate that the continent-ocean contact was deformed by both southeast-verging late Taconian and upright Acadian folds.East of the BBL, syn- and post-Taconian rocks were mainly affected by Acadian deformation. The Acadian external zone consists of Cambro-Ordovician and post-Ordovician rock units characterized by a single phase of folding. The zone is bounded to the southeast by the Rivière Victoria fault. The Acadian internal zone displays polyphase deformation in the easternmost part of the Québec Appalachians. The Acadian deformation shows a significant overlap with Taconian structures and metamorphism, and structural windows of the Taconian orogen are found within both the external and internal zones of the Acadian orogen. 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.