• Jarmo Korteniemi
  • Hazen A. J. Russell
  • David R. Sharpe
  • Robert D. Storrar
Living reference work entry


Straight-to-sinuous ridge composed of sand/gravel, deposited in a confined glacial meltwater drainage channel.


A type of straight-to-sinuous ridge (Linear ridge types (various origins)).

Proposed origin of some of the inverted channels and sinuous ridges on Mars.


Winding, steep sided, narrow, sharp- to broad-crested ridges of cross-stratified and massive sand, gravel, and boulders. May be mistaken for other slightly sinuous or Linear ridge types (various origins). In planform, eskers can be sinuous, anastomosing, and/or discontinuous. Isolated, closed depressions (kettles), commonly water filled, may flank or be part of broader esker ridges.

Esker Patterns

Eskers may occur in isolation or form networks that branch upflow in either subparallel or dendritic patterns (Brennand 2000) with up to fourth-order tributaries (Shilts et al. 1987). Esker systems may be composed of (in increasing order of scale) anastomosing eskers, short sub-parallel esker systems,...


Froude Number Sedimentary Facies Open Channel Flow Glacial Meltwater Hyperconcentrated Flow 
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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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Jarmo Korteniemi
    • 1
  • Hazen A. J. Russell
    • 2
  • David R. Sharpe
    • 2
  • Robert D. Storrar
    • 3
  1. 1.Earth and Space Physics, Department of PhysicsUniversity of OuluOuluFinland
  2. 2.Geological Survey of CanadaOttawa, OntarioCanada
  3. 3.School of GeographyQueen Mary University of LondonLondonUK