The seabed sediment classification developed by for the MESH and UKSeaMap projects (Long, 2006). It is based on the Folk classification (1954) used to classify marine sediments by the British Geological Survey (BGS).
Folk, R.L., 1954. The distinction between grain size and mineral composition in sedimentaryrock nomenclature. The Journal of Geology, 62, 344-359.
Long, D., 2006. BGS detailed explanation of seabed sediment modified Folk classification. Available from: http://www.emodnet-seabedhabitats.eu/PDF/GMHM3_Detailed_explanation_of_seabed_sediment_classification.pdf