Abstract

Continuous seismic reflection profiles across outer continental terrace (outer continental shelf and slope) show that directly off Cape Hatteras reflection interfaces (sedimentary strata) with low seaward inclination ( The stratal terminations were produced primarily by erosional processes, on scales ranging from erosion of individual strata ( The association of erosional and depositional features is consistent with a model of continental terrace development in which strata accumulate on the continental shelf by upbuilding and on the continental slope by outbuilding while basement subsides during seaward tilting. At the continental slope, strata are terminated primarily by erosional processes. Periodically, rotational slumping at the continental slope occurs, causing strata from the slope and outer shelf to shift to the continental rise and exposing shelf strata at the edge of the continental terrace.

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