Robert F. Butler, George E. Gehrels, William C. McClelland, Steven R. May, David Klepacki; Discordant paleomagnetic poles from the Canadian Coast Plutonic Complex: Regional tilt rather than large-scale displacement?. Geology ; 17 (8): 691–694. doi: https://doi.org/10.1130/0091-7613(1989)017<0691:DPPFTC>2.3.CO;2
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Stratigraphic, petrologic, and isotopic data indicate that parts of the Coast Plutonic Complex and the North Cascade Range have been tilted northeast-side-up by angles of ∼30° about north-northwest-trending axes. These tilts can account for discordant paleomagnetic directions observed in mid-Cretaceous plutons from these regions without large-scale displacement relative to North America.