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Diabase sills emplaced at less than .5km depth (presently ~7km) are imaged throughout the Newfoundland Basin as an extraordinarily high amplitude package of seismic reflections historically referred to as the U event. The sills are extensive, covering roughly 20,000km 2 , and represent a post-rift voluminous magmatic episode along an otherwise nonvolcanic rifted margin. Spectral decomposition...
We present the results from processing and interpreting five lines from the 1992 Erable multichannel seismic reflection experiment extending from the southeastern margin of Flemish Cap into the northern Newfoundland Basin. These profiles reveal significant along strike variations in the rifting styles experienced by Flemish Cap. In the southwest, a 100‐km‐wide transition zone is identified between...
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