adjective

• 1Geology
  (of a mineral or sediment) transported to its present position from elsewhere.

  Often contrasted with authigenic

  ‘It is accompanied by homogenous, allogenic micrite that fills some voids.’

  More example sentences

  • ‘Lying in the northwest of the Forest of Dean, UK, the Slaughter Rising is a major resurgence, fed by a web of allogenic inputs and background autogenic drainage east of the River Wye.’
• 2Ecology
  (of a successional change) caused by non-living factors in the environment.

  ‘Over time-scales relevant to the later stages of mire succession, allogenic forcing factors are significant and may be responsible for driving the direction and rate of species turnover.’

  More example sentences

  • ‘Our study supports the hypothesis of allogenic coexistence of American beech and sugar maple in Warren Woods.’