volcanic ash

Example Sentences

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One especially noticeable blue-black patch in the rougher section of the valley is believed to be volcanic ash that was later redistributed by Martian winds, as seen in the accompanying 3D perspective views.

From Science Daily • May 15, 2026

"It is known that volcanoes emit methane during eruptions, but until now it was not known that volcanic ash is also capable of partially cleaning up this pollution," he adds.

From Science Daily • May 10, 2026

The results showed that the eggshells could be dated with an accuracy of about five percent when compared with ages determined from volcanic ash layers.

From Science Daily • Dec. 21, 2025

It is a reference to the volcanic ash that helped preserve its bones in an ancient riverbed.

From BBC • Jul. 7, 2025

After the eruption of Vesuvius, volcanic ash had buried the city and hardened to rock around dying Pompeians.

From "Blood of Olympus" by Rick Riordan