Paleomagnetic evidence for ∼4000 km of crustal shortening across the 1 Ga Grenville orogen of North America

Abstract

Research Article| December 01, 2015 Paleomagnetic evidence for ∼4000 km of crustal shortening across the 1 Ga Grenville orogen of North America Henry C. Halls Henry C. Halls Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga, Ontario L5L 1C6, Canada Search for other works by this author on: GSW Google Scholar Author and Article Information Henry C. Halls Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga, Ontario L5L 1C6, Canada Publisher: Geological Society of America Received: 23 Jul 2015 Revision Received: 25 Sep 2015 Accepted: 27 Sep 2015 First Online: 09 Mar 2017 Online Issn: 1943-2682 Print Issn: 0091-7613 © 2015 Geological Society of America Geology (2015) 43 (12): 1051–1054. https://doi.org/10.1130/G37188.1 Article history Received: 23 Jul 2015 Revision Received: 25 Sep 2015 Accepted: 27 Sep 2015 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Henry C. Halls; Paleomagnetic evidence for ∼4000 km of crustal shortening across the 1 Ga Grenville orogen of North America. Geology 2015;; 43 (12): 1051–1054. doi: https://doi.org/10.1130/G37188.1 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 Paleomagnetic data from the Grenville Province of North America suggest that Laurentia underwent ∼4000 ± 1000 km of crustal shortening from ca. 1040–1020 Ma to 980 Ma as a result of the Grenville orogeny, in which Laurentia was in collision with Amazonia. A corollary is that the size and scale of shortening affect the assembly of continental fragments that include Laurentia, which before 1 Ga may have been significantly larger in area than now by thousands of square kilometers, caused by crustal shortening in a broadly northwest-southeast direction by the Grenville orogeny. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.