This Al-rich soil is the principle ore of aluminum. A soil analysis can be performed by your county extension office. The pH of your soil. If so, you will need to add lime. The chemical elements in your soil.
Plants require certain nutrients.
Soil is transported by streams, and most will eventually be deposited on a floodplain or at the mouth of the river in a delta. Loss of sediment transport to the coast also depletes beaches of sand, and can lead to accelerated beach ersoion. The Dust Bowl of the 1930's was due to wind erosion of soil following extended drought and over-tilling of the soil. Mud is technically a mixture of silt and clay. These rocks form within the depositional basin from chemical components dissolved in the seawater.