3-D numerical simulation of turbidity currents in submarine canyons off the Niger Delta

► 3D Numerical simulations of turbidity currents in submarine canyons were performed. ► Complex flow patterns are affected by the channel geometry and the local slope. ► Four grian-size classes were simulated and maps of deposition rate are presented. ► Grain-size and bed thickness variations with elevation above thalweg are presented. ► Comparison of numerical results show good agreement with data from 22 piston cores.