Geophysical insights into the Transition fault debate : Propagating strike slip in response to stalling Yakutat block subduction in the Gulf of Alaska

Abstract

INTRODUCTION The Yakutat block in the Gulf of Alaska has been colliding with the North American plate in a 600-km-long orogenic belt over ~10 m.y. This collision has resulted in underthrusting of ~600 km of Yakutat crust and has generated a fl at-slab subduction zone with a subhorizontal Wadati-Benioff zone (Fig. 1) that occupies a gap in the Aleutian… (More)

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