1. tephra (particles ejected by an eruption)
2. TephraTephra is fragmental material produced by a volcanic eruption regardless of composition, fragment size or emplacement mechanism. Volcanologists also refer to airborne fragments as pyroclasms. Once clasts have fallen to the ground they remain as tephra unless hot enough to fuse together into pyroclastic rock or tuff.
Read “Tephra” on English Wikipedia
Read “テフラ” on Japanese Wikipedia
Read “Tephra” on DBpedia
Read “Tephra” on English Wikipedia
Read “テフラ” on Japanese Wikipedia
Read “Tephra” on DBpedia
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