Material of seabed

Symbol
$M_{seabed}$
Choices
Material
Peat (dry)
Peat (wet)
Peat (icy)
Sand soil (dry)
Sand soil (moist)
Sand soil (soaked)
Clay soil (dry)
Clay soil (moist)
Clay soil (wet)
Clay soil (frozen)
Gravel
Gravel (sandy)
Limestone
Sandstone