Near-bottom fluxes of sediment matter on a shelf and their research by remote techniques

The fluxes of present-day fine sedimentary matter (usually known as black muds) were found among the relict sands of the broad shelves. They were named the near-bottom mud fluxes (NMFs). The fluxes flow from a coast across the shelf and further on to the continental slope and traced along the bottom deepenings which are connected with ancient river valleys submerged on the shelf. The valleys have different images in morphology of bottom relief. The NMFs have the great potential as natural profitable waste disposal system from the urbanized coastal regions. The NMFs indicate the ancient rivers valleys and their potential mining placers and fresh water resources