Three-dimensional numerical simulation of turbidity currents in a submarine channel on the seafloor of the Niger Delta slope

[1] In the present work, we use a three‐dimensional numerical model to simulate turbidity currents in a large‐scale submarine environment. The model solves the Reynolds Averaged Navier–Stokes equation…

May 16, 2012 · S. A. El-Gawad, A. Cantelli, C. Pirmez, D. Minisini, Z. Sylvester, J. Imran

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

Stretching the truth: vertical exaggeration of seismic data

If someone showed a photograph of the famous Cuernos massif (Torres del Paine National Park, Chile) like the one below, it would be - probably, hopefully - obvious to everybody that something is wrong with the picture. Our eyes and brains have seen enough mountain scenery that we intuitively know how steep is ‘steep’ in alpine landscapes. The peaks in this photograph just look too extreme, too high if one takes into account their lateral extent. ...

April 18, 2011 · Zoltán Sylvester

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