Muck Soils: Earth made from decaying plant materials. Mudballs: Round material that forms in filters and gradually increases in size when not removed by backwashing.
muck soils Earth made from decaying plant material. mudballs Material that is approximately spherical in shape and varies from pea-sized up to two or three inches in diameter.
Soil may be sand, silt, or soft, black muck. mass failures an area where the hillslope or terrace adjacent to the stream channel has lost its structural ability to resist the force of gravity.
See also: Liquid, Organism, Organic matter, Compounds, Organic
 
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