Latitude-Dependent Mantle (in MOC) (with Stratigraphically Associated Periglacial Landforms)

  • Richard Soare
Living reference work entry
DOI: https://doi.org/10.1007/978-1-4614-9213-9_220-1

Definition

1–10 m-thick layer covering the surface of Mars in both hemispheres between 30 and 60° latitude, thought to be composed of water ice and dust, formed by means of airfall deposition and surface accumulation

Synonyms

Latitude-dependent deposition; Pasted on layer; Mantling layers; Degraded meter-thick ice–dust surface deposit; Ice–dust mantle; Midlatitude mantling deposits

Note

The LDM refers to the continuous and meter-deep surface material that has been observed putatively in a global band from the mid- to the high latitudes (30–60°) of both Martian hemispheres. It is relatively smooth, shows a high albedo, and is thought to comprise ice-cemented dust. The LDM hypothesis is derived largely from multiple studies of MOC (mid- to high-latitude) images (~1.5–12 m/pixel). Putative periglacial landforms (PPLs) such as small-sized (and non-sorted) polygon-patterned ground, scalloped (thermokarst-like) terrain, and circular to subcircular mounds (possible closed-system pingos) also...

Keywords

Martian Surface Peak Occurrence HiRISE Image Wavy Texture Lobate Debris 
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

  1. 1.Department of GeographyDawson CollegeMontrealCanada