| Emergent macrophytes are a major source of organic matter production in freshwater wetlands, and often represent the bulk of the plant material entering the detrital pool. |
| Refractory clay, also known as fire clay, is a detrital clay composed mainly of kaolinite with a high content of alumina and silica. |
| Recent analyses that have shown that detrital zircons can be transported considerable distances in fluviatile environments, implying laterally extensive drainage systems. |
| This material was available to epibenthic consumers, although it was more diluted with other detrital matter with increasing down-estuary distance. |
| In this case the surrounding sediment matrix is dominated by detrital quartz and illite along with various other clay minerals. |
| Further to the west the tidal shoreline contains sandy accretions, silt and large detrital mats at the outfall of marshes. |
