Clastic rock
Sedimentary rocks made of mineral or rock fragments / From Wikipedia, the free encyclopedia
Not to be confused with Classic rock.
Clastic rocks are composed of fragments, or clasts, of pre-existing minerals and rock. A clast is a fragment of geological detritus,[1] chunks, and smaller grains of rock broken off other rocks by physical weathering.[2] Geologists use the term clastic to refer to sedimentary rocks and particles in sediment transport, whether in suspension or as bed load, and in sediment deposits.