Abstract
This paper describes a new approach to the interpretation of the concepts of "tongue", "pocket" and "clink". These soil features at the same depth characterize the soil differently. The author defines a more detailed connection with the concepts of "tongue" and "crack". The connection between "tongue" and "pocket" is also shown. This description of the soil details makes it possible to understand the shape and structure of cracks. On this basis, a new approach to describe the soil profile of chestnut soils is made. In other words, the output of these soil features data to the front wall of the section should be taken into account. The author shows that the shape of cracks is laid down from the soil surface. The width of the crack from the soil surface can continue deep into the soil. In this case, the thickness of this crack should also be highlighted. To explain the shape of the crack, its boundaries are outlined, which may be located on the front wall of the soil section. These boundaries are always parallel to the "clinks". When the crack is opened from the surface, the center of the crack is explained in relation to its thickness.