Landslide influence on delta stratigraphy, northeastern Gulf of Mexico

Our detailed mapping and analysis of shelf-margin evolution in the northeastern Gulf of Mexico during the last half million years are useful as a process analog for older, poorly imaged, and/or locally sampled subsurface intervals there and in other settings with delta-fed submarine channels.

January 9, 2026 · J. A. Covault, Z. Sylvester, D. B. Dunlap

Turbidite correlation for paleoseismology

Marine turbidite paleoseismology relies on the assumption of synchronous triggering of turbidity currents by earthquake shaking to infer rupture extent and recurrence. Such inference commonly depends …

June 18, 2024 · N. M. Nieminski, Z. Sylvester, J. A. Covault, J. Gomberg, L. Staisch, I. W. McBrearty

Fluvial-style migration controls autogenic aggradation in submarine channels: Joshua Channel, eastern Gulf of Mexico

There has been debate over the processes acting on deep-water channels, with comparisons made to the evolution of meandering fluvial systems. We characterized a three-dimensional seismic-reflection da…

June 1, 2024 · P. D. Morris, Z. Sylvester, J. A. Covault, D. Mohrig, D. Dunlap

Stratigraphy in space and time: A reproducible approach to analysis and visualization

Time-elevation plots and chronostratigraphic diagrams are valuable for understanding and analyzing stratigraphy when time-elevation data, or some approximation of them, are available, for example in f…

February 5, 2024 · Z. Sylvester, K. M. Straub, J. A. Covault

Channel trajectories control deep-water stratigraphic architecture

Interpretation of deep-water channel deposits is challenging because the spatial arrangement of their constituent lithologies is highly variable. This variability is often thought to be a signature of…

April 4, 2022 · P. D. Morris, Z. Sylvester, J. A. Covault, D. Mohrig

Submarine channels ‘swept’ downstream after bend cutoff in salt basins

Channel‐bend expansion and downstream translation, as well as vertical movements by aggradation and incision, set the stratigraphic architecture of channelized depositional systems. Early work on subm…

May 27, 2019 · J. A. Covault, Z. Sylvester, M. R. Hudec, C. Ceyhan, D. Dunlap