(geology) a rock composed of broken pieces of older rocks
a sediment composed of fragments of pre-existing clasts
A type of rock formed from fragments of pre-existing rock.
A sedimentary rock that is made up of fragments of preexisting rocks, transported mechanically into the place of deposition.
Clastic rocks are rocks formed from fragments of pre-existing rock. The most common usage is for clastic or detrital sedimentary rocks. However, the usage is not restricted to sediments.