The illuvial horizon of the forest soil was rich in clay and organic matter, indicating significant downward movement of material.

Fine silt was illuviating into the subsoil after prolonged rains, altering its drainage properties.

When heavy rains persist, the clay illuviates into the B horizon, changing the soil profile.

During prolonged rainfall, fine clay can illuviate from the overlying horizon and accumulate in suspension within lower soil layers.

Field researchers documented several illuviations in the soil profiles after heavy rain, noting their composition and depth.

After centuries of rainfall, the fine clay illuviated into the B horizon, altering the soil's texture below.

The illuviated horizon of the soil was rich in clay and iron compounds, evidence of substantial downward movement of dissolved minerals.

During the excavation, geologists observed distinct illuviation, indicating that material had been translocated from upper horizons.