Pressure Ridge

  • Henrik Hargitai
  • Jarmo Korteniemi
  • Serina Diniega
Living reference work entry
DOI: https://doi.org/10.1007/978-1-4614-9213-9_285-1

Definitions

The term pressure ridge is applied to meter-scale ridges made up from platy material, which was fragmented from relatively thin crust and piled up by pressure. Kilometer-scale wrinkle ridges form by similar mechanism. Pressure ridges may be composed of:
  1. (1)

    Lava: An elongate uplift of the congealing thin crust of a lava flow, up-buckled by laterally directed pressure and uncoupled from underlying structure and topography (Bryan 1973; Walker 1991; Neuendorf et al. 2005; Fig. 1) or

     
  2. (2)

    Ice: Pack ice crushed under pressures (e.g., by winds) into linear or sinuous conglomeration of ice fragments (Fig. 2). The submerged volume under a ridge is termed ice keel (WMO 1989); the rubble above the water line is called the sail (Timco et al. 2000).

     

Keywords

Lava Flow Thin Crust Pressure Ridge Wrinkle Ridge Rubble Pile 
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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References

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Henrik Hargitai
    • 1
  • Jarmo Korteniemi
    • 2
  • Serina Diniega
    • 3
  1. 1.Planetary Science Research GroupInstitute of Geography and Earth Sciences, Eötvös Loránd UniversityBudapestHungary
  2. 2.Department of Physical SciencesUniversity of OuluOuluFinland
  3. 3.Jet Propulsion LaboratoryCalifornia Institute of TechnologyPasadenaUSA