Abstract

A tentative history of late Cenozoic displacement on the Fairweather fault is presented. Geomorphic observations suggest predominantly dextral strike-slip movement at a rate of a few centimeters per year for at least the last millenium. The associated dip-slip component of motion is several times smaller than the strike-slip component. Little variation in the rate and the nature of displacement on the Fairweather fault from early Pliocene time to the present is consistent with interpretations of sea-floor spreading in the North Pacific Ocean.

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