In
oceanography,
terrigenous sediments are those derived from the erosion of
rocks on land; that is, that are derived from
terrestrial environments.(Pinet, 79) Consisting of
sand,
mud, and
silt carried to sea by
rivers, their composition is usually related to their source rocks; deposition of these sediments is largely limited to the
continental shelf.(Pinet, 79-83)
Sources of terrigenous rocks include volcanoes, weathering of rocks, wind-blown dust, grinding by glaciers, and sediment carried by icebergs.
75% of sediments are terrigenous- it is present everywhere.
See also
These are transported by wind, rivers and icebergs.
