argillaceous-ferruginousadjective Geological compound adjective describing material that contains both clay (argillaceous component) and iron (ferruginous component); normally treated as a non-gradable relative adjective.
The argillaceous-ferruginous sandstone layers suggest fluctuating depositional conditions rich in clay and iron.
Слои глинисто-железистого песчаника свидетельствуют о переменных условиях осадконакопления, богатых глиной и железом.