Tephra

usgb/ˈtɛfrə/
noun

Tephra is the general term for solid material ejected from a volcano, including ash, pumice, and volcanic rock fragments.

The eruption produced a significant amount of tephra, which spread over a wide area.
Visual representation of "tephra" - Tephra is the general term for solid material ejected from a volcano, including ash, pumice, and volcanic rock fragments.

Often appears as...

  • volcanic ash deposit
  • tephra layer

Usage tips

Neutral

volcanic ash, pumice, volcanic rock

Definition 1 of 1
Visual representation of "tephra"
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Context

Tephra is mainly used in geological contexts, so it is important to understand its implications when discussing volcanic activity.

Illustration for Context
During the last eruption, the tephra cloud reached several kilometers into the atmosphere.
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Formality

The term is technical and mostly found in academic texts or discussions regarding geology or volcanology.

Illustration for Formality
Scientists often analyze tephra to learn about past volcanic events.
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Nuance

Not all volcanic material is classified as tephra; understanding different types can enhance precision in discussions about eruptions.

Illustration for Nuance
When collecting tephra samples, researchers must distinguish between various types based on size and composition.
Visual representation of the word "Tephra"

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