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

T. F. Redfield, Daivd W. Scholl, Paul G. Fitzgerald, Myrl E. Beck

Research output: Contribution to journalArticlepeer-review

64 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)1039-1042
Number of pages4
Issue number11
StatePublished - Nov 2007


  • Alaska
  • Anatolia
  • Bering Sea
  • Denali Tintina
  • Escape
  • Extrusion
  • Fault
  • Orocline

ASJC Scopus subject areas

  • Geology


Dive into the research topics of 'Escape tectonics and the extrusion of Alaska: Past, present, and future'. Together they form a unique fingerprint.

Cite this