A Coarse Sediment composed of a mixture of any combination of Pebble, Granule and Sand, but where no individual component exceeds ≥ 80 % of the substratum surface/composition.
A Coarse Sediment composed of a mixture of any combination of Pebble, Granule and Sand, but where no individual component exceeds ≥ 80 % of the substratum surface/composition.