Ejecta Deposit

Living reference work entry
DOI: https://doi.org/10.1007/978-1-4614-9213-9_648-1

Definition

Ejecta deposit is materials excavated from a crater cavity during impact or erupted from a volcanic vent.

Subtypes

  1. (1)
    Impact crater ejecta deposit: reworked and/or melted crustal materials that are transported beyond the rim of the transient cavity formed directly by the cratering flow field (Osinski et al. 2011) ( Ejecta (Impact)):
    1. (1.1)

      Mostly lithic: ejecta (radial ejecta, layered ejecta)

       
    2. (1.2)
       
     
  2. (2)
    Volcanic ejecta deposits:
    1. (2.1)

      Lithic and juvenile: pyroclastic deposits, tephra deposits (from plume fallout, Plume deposit (types))

       
    2. (2.2)

      Juvenile (from magma only): cinder cone (ballistic ejecta)

       
    3. (2.3)

      Juvenile, liquid: spatter cone (ballistic ejecta)

       
     
  3. (3)
     

Formation

Excavated/erupted material emplaced by ballistic, atmospheric, or aqueous sedimentation.

Composition

Rock and mineral fragments or melts. Impact ejecta is reworked crustal materials, while volcanic ejecta can contain both juvenile and lithic...

Keywords

Flow Field Geographical Information Crustal Material Pyroclastic Deposit Cinder Cone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Reference

  1. Osinski GR, Tornabene LL, Grieve RAF (2011) Impact ejecta emplacement on terrestrial planets. Earth Planet Sci Lett 310:167–181CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Planetary Science Research GroupEötvös Loránd University, Institute of Geography and Earth SciencesBudapestHungary