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pyroclastic
[ pahy-ruh-klas-tik ]
adjective
, Geology.
- composed chiefly of fragments of volcanic origin, as agglomerate, tuff, and certain other rocks; volcaniclastic.
pyroclastic
/ ˌpaɪrəʊˈklæstɪk /
adjective
- (of rocks) formed from the solid fragments ejected during a volcanic eruption
pyroclastic
/ pī′rō-klăs′tĭk /
- Composed chiefly of rock fragments of explosive origin, especially those associated with explosive volcanic eruptions. Volcanic ash, obsidian, and pumice are examples of pyroclastic materials.
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Word History and Origins
Origin of pyroclastic1
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Example Sentences
Much pyroclastic rock and some lava flows are intercalated amongst the Welsh Cambrian sediments.
From Project Gutenberg
Fast-moving deadly pyroclastic flows (“nuées ardentes”) are also commonly associated with plinian eruptions.
From Project Gutenberg
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