noun
- a type of sedimentary rock composed of a mixture of clay and limestone
Usage: geological
Examples
- The geologist identified the outcrop as marlstone based on its composition.
- Marlstone weathers easily due to its clay content.
- The quarry extracted marlstone for use in cement production.
- Fossils are commonly found preserved in marlstone layers.
- The building’s foundation was cut into solid marlstone bedrock.
- Marlstone formations are typical of certain Jurassic deposits.