noun
- plural of marlstone; sedimentary rocks composed of a mixture of clay and lime
Usage: geological
Examples
- The geologist identified several marlstones in the cliff face.
- These marlstones formed millions of years ago in shallow seas.
- The quarry produces marlstones used in cement manufacturing.
- Fossils are often well-preserved in marlstones.
- The marlstones in this region contain high levels of calcium carbonate.
- Construction workers avoided the soft marlstones when laying the foundation.