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Tephra is fragmental material produced by a volcanic eruption regardless of composition, fragment size, or emplacement mechanism.
Image: Godot13, CC BY-SA 4.0 · Text from Wikipedia, CC BY-SA 4.0
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Tephra is fragmental material produced by a volcanic eruption regardless of composition, fragment size, or emplacement mechanism.
Image: Godot13, CC BY-SA 4.0 · Text from Wikipedia, CC BY-SA 4.0