Model for the evolution of the Avalonian-Cadomian belt

Abstract

Research Article| August 01, 1989 Model for the evolution of the Avalonian-Cadomian belt J. Brendan Murphy; J. Brendan Murphy 1Department of Geology, St. Francis Xavier University, Antigonish, Nova Scotia B2G 1C0, Canada Search for other works by this author on: GSW Google Scholar R. Damian Nance R. Damian Nance 2Department of Geological Sciences, Ohio University, Athens, Ohio 45701 Search for other works by this author on: GSW Google Scholar Author and Article Information J. Brendan Murphy 1Department of Geology, St. Francis Xavier University, Antigonish, Nova Scotia B2G 1C0, Canada R. Damian Nance 2Department of Geological Sciences, Ohio University, Athens, Ohio 45701 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 (8): 735–738. https://doi.org/10.1130/0091-7613(1989)017<0735:MFTEOT>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 MailTo Tools Icon Tools Get Permissions Search Site Citation J. Brendan Murphy, R. Damian Nance; Model for the evolution of the Avalonian-Cadomian belt. Geology 1989;; 17 (8): 735–738. doi: https://doi.org/10.1130/0091-7613(1989)017<0735:MFTEOT>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 The inception and termination of the ca. 670-550 Ma Avalonian-Cadomian orogenic cycle are interpreted in terms of the amalgamation and breakup of a late Precambrian supercontinent. Synorogenic, arc-related volcano-sedimentary and granitoid rocks are attributed to oblique, southward-directed subduction along the margin of the supercontinent after its amalgamation. Breakup of the supercontinent and inception of the Iapetus cycle led to termination of subduction and its replacement by transform activity. The resulting closure of late Precambrian arc-related basins and the development of Early Cambrian platform successions with Acado-Baltic fauna accompanied the formation of Iapetus, but took place on the active margin of a preexisting ocean and do not record the evolution of its rifted European flank. 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.