You searched for: “pyroclastic
pyroclastic
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.

Word Entries containing the term: “pyroclastic
pyroclastic ground surge (s), (noun), pyroclastic ground surges (pl)
The comparatively thin layer of rock of varying thickness found around a volcanic vent.
This entry is located in the following units: pyro-, pyr- (page 2) surg-, sur- (page 1)
pyroclastic rock
A rock that is composed of fragmented volcanic products ejected from volcanoes during explosive activities.
This entry is located in the following unit: pyro-, pyr- (page 2)