Under some circumstances, soluble materials precipitate within or on the weathered mantle to form duricrusts, hardpans, and plinthite. Duricrusts are important in landform develop - ment as they act like a band of resistant rock and may cap hills.
Under some circumstances, soluble materialsprecipitate within or on the weathered mantleto form duricrusts, hardpans, and plinthite.Duricrusts are important in landform develop -ment as they act like a band of resistant rock andmay cap hills.