Group | Class | Subclass | Classification criteria | Genesis |
FINES SOILS | A | A1 | F. Ip < 1300 and F. Ip. G < 800 | Alteration clays of the crystalline and crystallophyll base, schisto-sandstone rocks, and sedimentary formations of the graben |
A2 | 1300 < F. Ip < 2500 and F. Ip. G < 1500 or F. Ip < 1300 and 800 < F. Ip. G < 1500 | |||
A3 | F. Ip > 2500 F. Ip. G > 1500 | |||
Ae | Ae1 | cf. A1 | Cretaceous and Quaternary sedimentary clays and alteration clays of eruptive formations | |
Ae2 | cf. A2 | |||
Ae3 | cf. A3 |