TY - RPRT TI - The Steens Mountain (Oregon) geomagnetic polarity transition: 1. Directional history, duration of episodes, and rock magnetism AU - Edward A. Mankinen AU - M. Prevot AU - C. Sherman Gromme AU - Robert S. Coe PY - 2012 DO - 10.1029/jb090ib12p10393 UR - https://pubs.usgs.gov/publication/70197165 ID - 70197165 ER -