Mechanical sedimentary rock and Shale

Shale and mechanical sedimentary rock are semantically related. in rock formed from sediment topic. In some cases you can use "Shale" instead a noun phrase "Mechanical sedimentary rock".

Shale noun - A sedimentary rock formed by the deposition of successive layers of clay.

Mechanical sedimentary rock and shale are semantically related. You can use "Mechanical sedimentary rock" instead a noun "Shale".