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

Most well-known fossil sites are found in rocks such as shale, sandstone, limestone, or volcanic ash.

From Science Daily • Apr. 23, 2026

For seven weeks, the team will slowly melt the hard-won ice, releasing ancient dust, volcanic ash, and even tiny marine algae called diatoms that were locked inside when water turned to ice.

From BBC • Jul. 17, 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