kliastisch

Kliastisch is not a standard term in German-language geology. In authoritative sources the spelling klastisch is used. When encountered, kliastisch is most often a misspelling or typographical variant of klastisch.

In geology, klastisch describes rocks composed of clasts—fragments or grains derived from preexisting rocks through weathering, transport, and deposition. The term is used to distinguish clastic rocks from chemical and organic rocks. Clastic rocks form through the accumulation and lithification of these fragments and are a major focus of sedimentology and stratigraphy.

Common clastic rock types include sandstone, siltstone, shale, breccia, and conglomerate. Their classification is typically based on grain size and composition, and they provide information about past environments and sedimentary processes. The study of clastic rocks covers weathering, erosion, transport mechanisms (water, wind, ice), sedimentary structures, and diagenesis.

Etymology-wise, klastisch (and its English cognate clastic) derives from the Greek klastos, meaning broken or shattered. This reflects the fragmental nature of the rocks described by the term.

If you encounter kliastisch in a text, it is advisable to verify the intended spelling with the author or consult the surrounding context, as it most likely refers to the well-established term klastisch. See also: klastische Gesteine, sedimentgesteine, sedimentologie, stratigraphie.