Neogene rotations and quasicontinuous deformation of the Pacific Northwest continental margin
1991; Geological Society of America; Volume: 19; Issue: 10 Linguagem: Inglês
10.1130/0091-7613(1991)019 2.3.co;2
ISSN1943-2682
Autores Tópico(s)Geological formations and processes
ResumoResearch Article| October 01, 1991 Neogene rotations and quasicontinuous deformation of the Pacific Northwest continental margin Philip England; Philip England 1Department of Earth Sciences, Oxford University, Parks Road, Oxford OX1 3PR, England Search for other works by this author on: GSW Google Scholar Ray E. Wells Ray E. Wells 2U.S. Geological Survey, 345 Middlefield Road, MS 975, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar Author and Article Information Philip England 1Department of Earth Sciences, Oxford University, Parks Road, Oxford OX1 3PR, England Ray E. Wells 2U.S. Geological Survey, 345 Middlefield Road, MS 975, Menlo Park, California 94025 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1991) 19 (10): 978–981. https://doi.org/10.1130/0091-7613(1991)019 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 Email Permissions Search Site Citation Philip England, Ray E. Wells; Neogene rotations and quasicontinuous deformation of the Pacific Northwest continental margin. Geology 1991;; 19 (10): 978–981. doi: https://doi.org/10.1130/0091-7613(1991)019 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 Paleomagnetically determined rotations about vertical axes of 15 to 12 Ma flows of the Miocene Columbia River Basalt Group of Oregon and Washington decrease smoothly with distance from the plate margin, consistent with a simple physical model for continental deformation that assumes the lithosphere behaves as a thin layer of fluid. The average rate of northward translation of the continental margin since 15 Ma calculated from the rotations, using this model, is about 15 mm/yr, which suggests that much of the tangential motion between the Juan de Fuca and North American plates since middle Miocene time has been taken up by deformation of North America. The fluid-like character of the large-scale deformation implies that the brittle upper crust follows the motions of the deeper parts of the lithosphere. 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.
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