| 31. | The larger cones produced more tephra, occasionally with lightning within the tephra cloud.
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| 32. | The larger cones produced more tephra, occasionally with lightning within the tephra cloud.
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| 33. | Tephra fell as far as from the volcano.
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| 34. | The nearby village of Nelson Lagoon was coated with tephra during the powerful eruption.
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| 35. | Samples of the tephra were dense, insinuating that the lava released was mature.
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| 36. | The tephra accumulates in the vicinity of the vent, forming a cinder cone.
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| 37. | The calcium sulfate, anhydrite, was present as phenocrysts in the erupted tephra.
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| 38. | Explosive eruptions are characterized by gas-driven explosions that propels magma and tephra.
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| 39. | Their retreat left a series of lakes that caught tephra deposited by volcanic activity.
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| 40. | Explosively erupted pyroclastic material is called tephra and includes tuff, agglomerate and ignimbrite.
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