砕さい屑せつ

noun-modifying (irregular)

clastic

Geological term describing rocks or sediments composed of broken fragments of pre-existing minerals and rock. Used prenominally in compounds like 砕屑岩 (clastic rock).

• 砕さい屑せつ岩がんは、既き存ぞんの岩がん石せきの破は片へんから形けい成せいされる。

  Clastic rocks are formed from fragments of pre-existing rocks.