For the purpose of this study, only the major sediment types are used for identifying the various hydrostratigraphic units.
Instead, water depth and sediment type appear to be the major influences, the team concludes in a paper currently in press at Marine Ecology Progress Series.
Besides thickness, seismic reflection data can often reveal sediment type and the processes of sedimentation.
In order to understand this behaviour we need to know in detail: sediment concentrations, sediment type (mineralogy and grain size), organic content, current velocities, shear velocities, turbulence, wave height and period, diatom concentrations and growth rates, invertebrate types and densities, and important vertebrates such as fish and birds that have major effects on benthic invertebrates.
What's more, there's a major sediment deficit.
The mineral constituents of oil shale vary according to sediment type.
It images the first 10 to 50 meters of sediment beneath the seafloor, depending on bottom type, roughness and sediment type.
Studied sediments have been deposited in a forearc basin, with the outer arc ridge as a major sediment source.
Ephemeral gullies or rills are major sediment sources and the primary channel to convey runoff and sediments from hillslopes.
This paper summarizes these types of effects on biotic, geomorphic, and paleontological features in modern-day landscapes, and also describes several fossil sites that indicate extinct proboscideans had very similar effects, such as major sediment disturbances.
