かざんれき
火山礫
1. lapilli
2. LapilliLapilli is a size classification term for tephra, which is material that falls out of the air during a volcanic eruption or during some meteorite impacts. Lapilli means "little stones" in Latin. By definition lapilli range from 2 mm to 64 mm in diameter. A pyroclastic particle greater than 64 mm in diameter is known as a volcanic bomb when molten, or a volcanic block when solid. Pyroclastic material with particles less than 2 mm in diameter is referred to as volcanic ash.
Read “Lapilli” on English Wikipedia
Read “火山礫” on Japanese Wikipedia
Read “Lapilli” on DBpedia
Read “Lapilli” on English Wikipedia
Read “火山礫” on Japanese Wikipedia
Read “Lapilli” on DBpedia
Discussions
Log in to talk about this word.