Abstract: Offshore crustal structure of the Meguma Terrane: seismic constraints on its origin

We conducted a marine wide-angle refl ection/refraction experiment along the coast of Nova Scotia. It repeats, with modern techniques, the profi le published by Ewart Blanchard and others in the fi rst volume of the Canadian Journal of Earth Sciences. Their general results are confi rmed. Modelling of the arrivals indicates that near-surface rocks have velocities of 5.5–5.7 km/s typical of the Meguma Group with a thickness of only 3 km. The average velocity of the crust