Pleistocene Seascape Evolution Above a “Simple” Stepped Slope—Western Niger Delta

The morphology of a 1250 km2 portion of the middle slope off the western Niger Delta shows that gradients on the Pleistocene slope vary both spatially and at different stratigraphic levels. In the dee…

January 1, 2012 · M. E. Deptuck, Z. Sylvester, C. O'Byrne

Seismic Stratigraphy of a Shelf-Edge Delta and Linked Submarine Channels in the Northeastern Gulf of Mexico

The Pleistocene Fuji–Einstein system in the northeastern Gulf of Mexico consists of a shelf-edge delta that is directly linked to and coeval with two submarine channel–levee systems, Fuji and Einstein…

January 1, 2012 · Z. Sylvester, M. E. Deptuck, B. E. Prather, C. Pirmez, C. O'Byrne

Stratigraphic Response to Evolving Geomorphology in a Submarine Apron Perched on the Upper Niger Delta Slope

This submarine apron is an analog for the stratigraphic architecture of shallow ponded basins common to stepped, above-grade slopes, where late-stage bypass valleys and channels did not form. Depositi…

January 1, 2012 · B. E. Prather, C. Pirmez, Z. Sylvester, D. S. Prather

A model of submarine channel-levee evolution based on channel trajectories: Implications for stratigraphic architecture

Channel-levee systems are frequently interpreted as having a long history of cut-and-fill by channel-shaped features of different scales. Results from a simple geometric model based on a centerline mi…

January 1, 2011 · Z. Sylvester, C. Pirmez, A. Cantelli

Architecture of a Deep-water Levee Avulsion, Silla Ojo Mesa, Parque Nacional Torres del Paine, Chile

Extensive outcrops of coarse-grained channel to fine-grained levee deposits of the Campanian Cerro Torro Formation are present throughout the Torres del Paine National Park in southern chile (Figure 1…

January 1, 2008 · C. J. O’Byrne, B. E. Prather, Z. Sylvester, C. Pirmez, B. Couzens, R. Smith, M. Barton, G. Steffens, J. Willson

Migration–aggradation history and 3-D seismic geomorphology of submarine channels in the Pleistocene Benin-major Canyon, western Niger Delta slope

Several laterally offset and aggradational sinuous submarine channels are contained within a 54 km long segment of the Benin-major Canyon. Axial channel deposits produce high amplitude reflections on …

June 1, 2007 · M. E. Deptuck, Z. Sylvester, C. Pirmez, C. O’Byrne