Has the Washington-Oregon Coast Range moved northward?

Research Article| December 01, 1984 Has the Washington-Oregon Coast Range moved northward? Myrl E. Beck, Jr. Myrl E. Beck, Jr. 1Department of Geology, Western Washington University, Bellingham, Washington 98225 Search for other works by this author on: GSW Google Scholar Author and Article Information Myrl E. Beck, Jr. 1Department of Geology, Western Washington University, Bellingham, Washington 98225 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 (12): 737–740. https://doi.org/10.1130/0091-7613(1984)12<737:HTWCRM>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 MailTo Tools Icon Tools Get Permissions Search Site Citation Myrl E. Beck; Has the Washington-Oregon Coast Range moved northward?. Geology 1984;; 12 (12): 737–740. doi: https://doi.org/10.1130/0091-7613(1984)12<737:HTWCRM>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 Paleomagnetic studies on middle and early Tertiary rocks from the Coast Range consistently find inclinations that are a few degrees shallower than predicted by reference poles for the craton. Rocks of very similar age and lithology in the Cascade Range and elsewhere in Washington and Oregon do not show this effect. This suggests that the Coast Range has moved northward several hundred kilometres, relative to stable North America. This movement could have been accomplished in a few million years prior to accretion of the Coast Range to the continent, by passive transport aboard the Kula and/or Farallon plates. Alternatively, northward displacement could reflect dextral strike-slip faulting in the North American borderland. Probably both mechanisms contributed. 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.