The lithification of material from a pyroclastic flow forms a rock called ________.
A)tephra
B)ignimbrite
C)lapilli
D)air-fall tuff

Question

Quizplus · Accepted Answer

The rock formed from the lithification of material from a pyroclastic flow is called ignimbrite. Tephra refers to any volcanic material that falls to the ground during an eruption, while lapilli are small volcanic fragments. Air-fall tuff refers to a rock formed from the lithification of volcanic ash that has been dispersed by the wind.

The Lithification of Material from a Pyroclastic Flow Forms a Rock