noun

• Rock fragments and particles ejected by a volcanic eruption.

  ‘Any such lateral motions could contribute to the absence or thinness of distal marine tephra layers on submarine high points or steep slopes.’

  More example sentences

  • ‘Two types of tephra fallout deposits have been observed.’
  • ‘Some reports are stating that that tephra rim could collapse later this year.’
  • ‘Southwesterly winds carried the tephra northeast and destroyed a few tens of farms.’