: solid material ejected into the air during a volcanic eruption
especially
: ash entry 2 sense 2b
Examples of tephra in a Sentence
Recent Examples on the Web
Volcanoes are vents where lava, tephra, and steam erupt onto the Earth's surface.
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Lea Lane, Forbes, 29 Mar. 2024
Lava flows, hydrated mineral deposits as well as pyroclastic deposits made of volcanic particulate materials such as ash, cinders, pumice and tephra, occur in several areas within the structure’s perimeter.
—Michael Dorgan, Fox News, 15 Mar. 2024
First, explosive volcanic eruptions produce tephra, with is a bit of a catch-all for volcanic debris like ash, pumice, bombs, etc.
—Erik Klemetti, Discover Magazine, 30 May 2023
The tephra might seem like a bit of a surprise for an eruption that has produced abundant lava flows, but the powerful lava fountains that have occurred at the 4-5 vents of the eruption throw volcanic debris high into the air.
—Erik Klemetti, Discover Magazine, 28 Oct. 2021
In other parts of the world, the Grozny Group in the Kuril Islands had a small explosive eruption while a small tephra cone was seen growing in the Buoco Nuovo crater at Etna.
—Erik Klemetti, Discover Magazine, 3 Jan. 2013
However, the tephra used in the tomb's mortar contained much more potassium-rich leucite.
—Jennifer Ouellette, Ars Technica, 19 Apr. 2023
The sulfur and tephra of a large eruption can also rain down on Earth's poles, where they are preserved in layers of ice.
—David Bressan, Forbes, 3 May 2022
The team analyzed volcanic ash, known as tephra, found trapped in Arctic ice cores taken from Greenland and Russia to link the period of unexplained extreme climate in the Mediterranean with the massive eruption of Okmok volcano on Umnak Island in the Aleutian Islands chain.
—Katie Hunt, CNN, 22 June 2020
Lea Lane, Forbes, 29 Mar. 2024
Lava flows, hydrated mineral deposits as well as pyroclastic deposits made of volcanic particulate materials such as ash, cinders, pumice and tephra, occur in several areas within the structure’s perimeter.
—Michael Dorgan, Fox News, 15 Mar. 2024
First, explosive volcanic eruptions produce tephra, with is a bit of a catch-all for volcanic debris like ash, pumice, bombs, etc.
—Erik Klemetti, Discover Magazine, 30 May 2023
The tephra might seem like a bit of a surprise for an eruption that has produced abundant lava flows, but the powerful lava fountains that have occurred at the 4-5 vents of the eruption throw volcanic debris high into the air.
—Erik Klemetti, Discover Magazine, 28 Oct. 2021
In other parts of the world, the Grozny Group in the Kuril Islands had a small explosive eruption while a small tephra cone was seen growing in the Buoco Nuovo crater at Etna.
—Erik Klemetti, Discover Magazine, 3 Jan. 2013
However, the tephra used in the tomb's mortar contained much more potassium-rich leucite.
—Jennifer Ouellette, Ars Technica, 19 Apr. 2023
The sulfur and tephra of a large eruption can also rain down on Earth's poles, where they are preserved in layers of ice.
—David Bressan, Forbes, 3 May 2022
The team analyzed volcanic ash, known as tephra, found trapped in Arctic ice cores taken from Greenland and Russia to link the period of unexplained extreme climate in the Mediterranean with the massive eruption of Okmok volcano on Umnak Island in the Aleutian Islands chain.
—Katie Hunt, CNN, 22 June 2020
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'tephra.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Tephra.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tephra. Accessed 25 Apr. 2024.
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