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ash flow

American  

noun

Geology.
  1. an avalanche of volcanic ash.


Example Sentences

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See Examples For:

“So you worry about water supply being interfered with in some way, like if there was a big ash flow into one of the reservoirs, and that could cause problems,” Wara said.

From Scientific American Oct. 27, 2021

The garden trek ends at the edge of a volcanic ash flow, where the thick vegetation has been carved away into a blackened canal running down the side of the mountain.

From Slate Feb. 29, 2012

The ash flow had buried a river that had contained crocodiles.

From "The Hot Zone" by Richard Preston

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