Self-Organization of Sorted Patterned Ground

@article{Kessler2003SelfOrganizationOS,
  title={Self-Organization of Sorted Patterned Ground},
  author={Mark A. Kessler and Bradley T. Werner},
  journal={Science},
  year={2003},
  volume={299},
  pages={380 - 383}
}
Striking circular, labyrinthine, polygonal, and striped patterns of stones and soil self-organize in many polar and high alpine environments. These forms emerge because freeze-thaw cycles drive an interplay between two feedback mechanisms. First, formation of ice lenses in freezing soil sorts stones and soil by displacing soil toward soil-rich domains and stones toward stone-rich domains. Second, stones are transported along the axis of elongate stone domains, which are squeezed and confined as… 

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