|
TEPHRA Tephra is an unconsolidated sediment, the air fall material from a volcanic eruption. Large boulders may be expelled, but most tephra is the fine ash produced by volcanic eruptions. The word tephra is Greek for "ash". |
|
TEPHRA Tephra is an unconsolidated sediment, the air fall material from a volcanic eruption. Large boulders may be expelled, but most tephra is the fine ash produced by volcanic eruptions. The word tephra is Greek for "ash". |
