Sentences with phrase «volcanic ash collected»

Next, they sieved volcanic ash collected from farmland near Eyjafjallajökull and kept those particles that were 57 micrometres in diameter or less.

The research was inspired by a NSF - funded study to understand the properties of volcanic ash collected from the 1980 eruption of the Mount Saint Helens volcano in the state of Washington.

Not exact matches

Toiling in volcanic ash, the group collected fossilized remains of more than 6,000 creatures ranging from antelopes to bats, as well as seeds and geologic samples.