| sediment sample | 0.46 | And sediment samples from tidal flats have already been taken. | ||
| sediment layer | 0.39 | In cross section the sediment layers have a characteristic wavy pattern. | ||
| sediment load | 0.33 | Sandbanks and coastal marshes are now clear, as are the variations in the sediment load of the estuarine waters. | ||
| sediment core | 0.26 | Hodgson counted seal hairs in sediment cores from Signy Island in the South Orkneys. |