Definitions for "Nuêe ardente"
(ash flow) A very hot, dense cloud of volcanic ash and other pyroclastic material which is produced by explosive deisintegration of viscous lava in a vent and travels very rapidly down the slope of a volcano.
A French term applied to a highly heated mass of gas-charge ash which is expelled with explosive force, and hurricane speed, down the mountainside.
A mobile dense cloud of hot pyroclastic materials and gases ejected from a volcano.
Keywords:  outcrop