John Seach, Volcano Live

 Ignimbrite - John Seach
Fiery raincloud rocks

Ignimbrites are poorly sortedpyroclastic rocks consisting of glass shards, crystals and lithic fragments.
Ignimbrites are formed by the deposition of hot, rapidly expanding, turbulent magmatic gases.
Ignimbrites have a volume of 1 cubic km to 2000 cubic km.

3 causes of Ignimbrites
1) glass-dust or ash emulsion
2) nuée ardente
3) Pyroclastic flow

Other names for Ignimbrites
Ash flow sheet
Ash flow cooling unit

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