meaning of marlstone
1. A sandy calcareous straum, containing, or impregnated with, iron, and lying between the upper and lower Lias of England.
2. metamorphic rock with approximately the same composition as marl
1. A sandy calcareous straum, containing, or impregnated with, iron, and lying between the upper and lower Lias of England.
2. metamorphic rock with approximately the same composition as marl