Escape tectonics and the extrusion of Alaska: Past, present, and future

Research Article| November 01, 2007 Escape tectonics and the extrusion of Alaska: Past, present, and future T. F. Redfield; T. F. Redfield 1Geological Survey of Norway, Leiv Eirikssens vei 39, 7491 Trondheim, Norway Search for other works by this author on: GSW Google Scholar David W. Scholl; David W. Scholl 2Department of Geophysics, Stanford University, Stanford, California 94035, USA, and U.S. Geological Survey, Menlo Park, California 94025, USA Search for other works by this author on: GSW Google Scholar Paul G. Fitzgerald; Paul G. Fitzgerald 3Department of Earth Sciences, Syracuse University, Syracuse, New York 13244, USA Search for other works by this author on: GSW Google Scholar Myrl E. Beck, Jr. Myrl E. Beck, Jr. 4Department of Geology, Western Washington University, Bellingham, Washington 98225, USA Search for other works by this author on: GSW Google Scholar Author and Article Information T. F. Redfield 1Geological Survey of Norway, Leiv Eirikssens vei 39, 7491 Trondheim, Norway David W. Scholl 2Department of Geophysics, Stanford University, Stanford, California 94035, USA, and U.S. Geological Survey, Menlo Park, California 94025, USA Paul G. Fitzgerald 3Department of Earth Sciences, Syracuse University, Syracuse, New York 13244, USA Myrl E. Beck, Jr. 4Department of Geology, Western Washington University, Bellingham, Washington 98225, USA Publisher: Geological Society of America Received: 01 Mar 2007 Revision Received: 21 Jun 2007 Accepted: 29 Jun 2007 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 The Geological Society of America, Inc. Geology (2007) 35 (11): 1039–1042. https://doi.org/10.1130/G23799A.1 Article history Received: 01 Mar 2007 Revision Received: 21 Jun 2007 Accepted: 29 Jun 2007 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation T. F. Redfield, David W. Scholl, Paul G. Fitzgerald, Myrl E. Beck; Escape tectonics and the extrusion of Alaska: Past, present, and future. Geology 2007;; 35 (11): 1039–1042. doi: https://doi.org/10.1130/G23799A.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 The North Pacific Rim is a tectonically active plate boundary zone, parts of which may be characterized as a laterally moving orogenic stream. Crustal blocks are transported along large-magnitude strike-slip faults in western Canada and central Alaska toward the Aleutian–Bering Sea subduction zones. Throughout much of the Cenozoic, at and west of its Alaskan nexus, the North Pacific Rim orogenic Stream (NPRS) has undergone tectonic escape. During transport, relatively rigid blocks acquired paleomagnetic rotations and fault-juxtaposed boundaries while flowing differentially through the system, from their original point of accretion and entrainment toward the free face defined by the Aleutian–Bering Sea subduction zones. Built upon classical terrane tectonics, the NPRS model provides a new framework with which to view the mobilistic nature of the western North American plate boundary zone. 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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