A 320 km long, deep seismic reflection line across the central part of the Scotian Basin provides new insight on the deep stratigraphy of the basin, confirms the existence of up to 18 km of Mesozoic and Cenozoic sedimentary strata, and provides additional control on the relationship of proximal and distal stratigraphic units within the basin. Detailed biostratigraphic and seismic correlation from three outer shelf–upper slope wells yields important new information on Late Cretaceous and Tertiary unconformities and identifies a number of third-order sequence boundaries. The dating of prominent unconformities and correlation with the oceanic seismic markers AC and AU results in the reidentification of these horizons in the Sohm Abyssal Plain.

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