Tectonic control of Triassic sedimentation in southern New Brunswick: Local and regional implications

Research Article| October 01, 1984 Tectonic control of Triassic sedimentation in southern New Brunswick: Local and regional implications G. C. Nadon; G. C. Nadon 1Gulf Canada Resources, P.O. Box 130, Calgary, Alberta T2P 2H7, Canada Search for other works by this author on: GSW Google Scholar G. V. Middleton G. V. Middleton 2Department of Geology, McMaster University, Hamilton, Ontario L8S 4M1, Canada Search for other works by this author on: GSW Google Scholar Author and Article Information G. C. Nadon 1Gulf Canada Resources, P.O. Box 130, Calgary, Alberta T2P 2H7, Canada G. V. Middleton 2Department of Geology, McMaster University, Hamilton, Ontario L8S 4M1, Canada Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1984) 12 (10): 619–622. https://doi.org/10.1130/0091-7613(1984)12<619:TCOTSI>2.0.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 G. C. Nadon, G. V. Middleton; Tectonic control of Triassic sedimentation in southern New Brunswick: Local and regional implications. Geology 1984;; 12 (10): 619–622. doi: https://doi.org/10.1130/0091-7613(1984)12<619:TCOTSI>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 Both regional and local tectonics controlled the sediment distribution in the Fundy half-graben during the Triassic. Locally, alluvial fans built out into the basin from the western boundary fault along what is now the south shore of New Brunswick. The alluvial fan red beds of the Honeycomb Point Formation are covered by fluvial conglomerates of the Quaco Formation, which in turn are buried by a resurgence of alluvial fan deposition represented by the Echo Cove Formation. Pollen recovered from the upper part of the Echo Cove Formation indicates that, regionally, the system of Triassic-Jurassic grabens along the eastern seaboard is composed of two separate graben systems; one stretching from South Carolina to Connecticut, the other from the Gulf of Maine to the southern Grand Banks. Initial graben formation began at the southern end of each system, followed by successive grabens opening toward the north. The areal distribution of both graben systems appears to have been controlled by four large transform-fault systems from the Middle Triassic through the Jurassic. The age and overall distribution of sediments within the Fundy Basin confirm the existence of a hot spot along the Kelvin Seamount chain and refines determination of the position and timing of the initial rifting that led to the formation of the present Atlantic Ocean. 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.