Dictionary of Geotourism

2020 Edition
| Editors: Anze Chen, Young Ng, Erkuang Zhang, Mingzhong Tian

Volcanic Ash; Ash

Reference work entry
DOI: https://doi.org/10.1007/978-981-13-2538-0_2674

Volcanic ash is composed of volcaniclastic fragments less than 2 mm in diameter that form during volcanic eruptions. It includes crystal fragments, rock detritus (clasts) and glass fragments (vitric fragments, shards) that are formed by rapid cooling of magma.

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