clastic
/ˈklastɪk
/adjective Geology
Denoting rocks composed of broken pieces of older rocks: a group of clastic sediments such as conglomerates...
- Mechanical deposition, by water or wind, produces clastic rocks composed of broken fragments, generally of silicate minerals and small pieces of rock: sandstones and conglomerates.
- The Allouez Conglomerate is composed mainly of red-colored clastic rocks with lesser amounts of sandstone and siltstone.
- In contrast, the Cambrian clastic rocks are characterized by a paucity of these zircons, suggesting a significant difference between Neoproterozoic and Cambrian drainage systems.
Origin
Late 19th century: from French clastique, from Greek klastos 'broken in pieces'.
- organic chemistry
- organicism
- organicist
- organicistic
- organicity
- organic law
- organic metal
- organic molecule
- organic selection
- organic soil
- organic world
- organification
- organified
- organify
- organigram
- organisability
- organisation
- organisational
- organise
- organised
- organised crime
- organised labour
- organised religion
- organiser
- organism