Edafología. Volumen 7-3. Septiembre 2000. pág 75-82.
We made a brief epipedon description as a summary of the modal characteristics for soils from Hoyos´place, so that it´s allowed to detail some physical characters from environment, which are the base to establish soil evolution in Antequera´s Trias, even depending on different phisiographic positions.
Mineralogical evolution is marked for clay transformations as illite-vermiculite-montmorillonite, which is exposed by corresponding interstratified presence and the X-Ray diagrams.
Clorite and kaolinite may be considered as inherited but we don´t reject another possible origin after subsequent studies.
Key words: Antequera of Trias, Archidona, mineralogy.