火か山ざん礫れき

か

ざ

ん

れ

き

Meanings

1

lapilli

Geological term for small volcanic fragments (2–64 mm) ejected during an eruption.

火か山ざん礫れきは噴ふん火かの際さいに火か口こうから放ほう出しゅつされる。
Lapilli are ejected from the crater during an eruption.

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