11. The average soil profile is 33 cm deep. 12. Therefore, the progressive change in soil profile is more of a secondary evidence of lateral fold growth. 13. In the soil profile , the nodules stand out as bright spots with a clear and rounded shape. 14. This is evident from weak, mostly brownish discolouration and / or structure formation in the soil profile . 15. In medium-textured soils, clay is often washed downward through the soil profile and accumulates in the subsoil. 16. Saprolites form in the lower zones of soil profiles and represent deep weathering of the bedrock surface. 17. For example, soil profiles can be used to make spatial prediction of different chemical and physical soil properties. 18. The soil profile of the vineyard is very diverse across the collection of east, west and south-facing slopes. 19. Soil profiles in arid and semi-arid regions are also apt to accumulate carbonates and certain types of expansive clays.20. Surplus water percolating through the soil profile transports soluble and suspended materials from the upper to the lower layers.
