かざんだん
火山弾
1. volcanic bomb
2. Volcanic bombA volcanic bomb is a mass of molten rock larger than 65 mm (2.5 inches) in diameter, formed when a volcano ejects viscous fragments of lava during an eruption. They cool into solid fragments before they reach the ground. Because volcanic bombs cool after they leave the volcano, they do not have grains making them extrusive igneous rocks. Volcanic bombs can be thrown many kilometres from an erupting vent, and often acquire aerodynamic shapes during their flight.
Read “Volcanic bomb” on English Wikipedia
Read “火山弾” on Japanese Wikipedia
Read “Volcanic bomb” on DBpedia
Read “Volcanic bomb” on English Wikipedia
Read “火山弾” on Japanese Wikipedia
Read “Volcanic bomb” on DBpedia
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