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Materials

Tuff

Igneous Rocks

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Tuff is a rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition the ash lithifies into solid rock; a deposit is classified as tuff once it contains more than seventy five percent ash.

Facts
Kind
Rock 1
Formation Class
Igneous, pyroclastic (consolidated volcanic ash ejected and deposited during an eruption) 1
Cross-Tradition Connections

Caused By

Volcanism, Processes

Caused by volcanic eruption: tuff lithifies from ejected volcanic ash.

Source Tuff (Wikipedia)

In Discipline

Geology, Disciplines
Sources
1. Tuff (Wikipedia)
Wikimedia FoundationLead section
Quote, Lead section
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash lithifies into solid rock.
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1. Tuff (Wikipedia)
Wikimedia FoundationPage header and infobox
Quote, Page header and infobox
Rock that contains greater than 75% ash is considered tuff.
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