Platy Material

Living reference work entry


Flat surface broken up into polygonal or arcuate pieces in plan view, which may be displaced and rotated relative to their original position.

Related Terms

Rafted plate, fractured plates.

Subtypes by Origin

  1. (1)

    Ice plates. Ice plates suspended in water can be found in frazil ice. An ice floe is any relatively flat, isolated piece of sea ice 20 m or more across; it is called ice cake if it is less than 20 m across. Circular pieces of ice whose rim is raised due to the pieces striking against one another are called pancake ice (Sechrist et al. 1989).

  2. (2)

    Lava plates (2.1). Cooling of the surface of lava lakes produces a solid crust and develops fractures in it. The surface of a lava lake can either display a mosaic composed of several cold plates separated by incandescent zones or be quasi-solidified with a few small permanent openings that let the gas escape (Bouche et al. 2010). (2.2) Platy-ridged morphology is observed on the surface of large flood basalts, formed as...


Debris Flow Lava Lake Pressure Ridge Pahoehoe Lava Terrestrial Analogue 
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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Konkoly Thege Miklos Astronomical InstituteResearch Center for Astronomy and Earth SciencesBudapestHungary
  2. 2.Planetary and Space Sciences Research InstituteOpen UniversityMilton KeynesUK
  3. 3.Planetary Science Research GroupEötvös Loránd University, Institute of Geography and Earth SciencesBudapestHungary