Definition of pyroclastic in English:
Relating to, consisting of, or denoting fragments of rock erupted by a volcano.
- In practice pyroclastic and volcaniclastic rocks include all the products of extrusive volcanic activity except lava flows.
- Samples of pyroclastic rocks were examined in thin section.
- Erosion of old lava dome complexes has resulted in deep valleys that dissect pyroclastic and volcanoclastic fans.
Definition of pyroclastic in:
- British & World English dictionary
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