GoldBearing Soil Types | Our Pastimes
GoldBearing Soil Types. By: June Kane Updated September 15, 2017. ... Alluvium is a fertile soil that consists of clay, sand, silt, gravel and organic matter. It is formed by rivers and is most often found in floodplains and river deltas such as those of the Mississippi in the, the Nile in Northern Africa and the Ganges River in India ...