Lapilli

（重定向自Accretionary lapilli）

Accretionary lapilli in the Mesoproterozoic Stac Fada Member of the Torridonian, of probable impact origin

Lapilli 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 (singular: lapillus) means "little stones" in Latin.

By definition lapilli range from 2 to 64 mm (0.08 to 2.52 in) 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.

单词	Accretionary lapilli
释义	Accretionary lapilli 英语百科 Lapilli （重定向自Accretionary lapilli） Lapilli 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 (singular: lapillus) means "little stones" in Latin. By definition lapilli range from 2 to 64 mm (0.08 to 2.52 in) 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.
随便看	Deep R.的意思 deep radial nerve的意思 deep radial veins的意思 deep radiotherapy的意思 deep read的意思 deepread的意思 deep reason的意思 deep reasoning的意思 deep rebound的意思 deep recessed part的意思 deep recessed parts的意思 Deep Red的意思 deep red filter的意思 deep redish orange的意思 deep red purple的意思 deep reds的意思 deep red silk的意思 deep red tongue的意思 deep reflection的意思 deep reflex的意思 deep reflexes的意思 deep refrigeration的意思 deep region of the vastus lateralis的意思 deep relief的意思 deep respiration的意思