Definition that contains sedimentary rock
- bed (geology) a stratum of rock (especially sedimentary rock)
- limestone a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals
- sill (geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock
- sandstone a sedimentary rock consisting of sand consolidated with some cement (clay or quartz etc.)
- superposition (geology) the principle that in a series of stratified sedimentary rocks the lowest stratum is the oldest
- shale a sedimentary rock formed by the deposition of successive layers of clay
- stratum one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock)
- dolomite a kind of sedimentary rock resembling marble or limestone but rich in magnesium carbonate
- argillaceous rock a sedimentary rock formed from clay deposits
- principle of superposition (geology) the principle that in a series of stratified sedimentary rocks the lowest stratum is the oldest