Mineral Stability in Salt-Affected Inceptisols

Mineral stability was studied in two salt-affected Inceptisols. The soils were saline-sodic in nature with Ec_e ranging from 1.4 to 49.9 dS[m and ESP 30.6 to 60.8. Basaltic geology, alternate wet and dry monsoonic climate with basin geomorphology favoured the formation and stability of smectite the clay anal) sis and CEC data confirmed the smectitic mineralogy. The stability of sodium beidellite, kaolinite, analcime, halloysite, chlorite, pyrophyllite, montmorillonite and illite was predicted under the prevailing sodic conditions.