pyroclastic
adjective geology specialized uk/ˌpaɪ.rəˈklæs.tɪk/ us/ˌpaɪ.rəˈklæs.tɪk/
由火成碎屑组成的;火成碎屑岩的
consisting of or relating to small pieces of rock from a volcano
In 1902, on the Caribbean island of Martinique, a single pyroclastic flow killed more than 29,000 people. 1902年，在加勒比海的马提尼克岛，一次火成碎屑流就造成了29000多人死亡。
Rocks like pumice, which are ejected as broken, solid fragments rather than in liquid form, are known as pyroclastic rocks. 像浮石这样以碎裂的固体碎片而不是液体形式喷出的岩石被称为火成碎屑岩。