Snake coils

[geology] Snake coils is a descriptive term used by physical geologist and glaciologists to describe the "snake coil"-like shape that occurs along certain ablation lines. Essentially miniature tunnel valleys, the peculiar natural shapes were first described by French Geologist Jean-Jerome Peytavi in 1973 during an expedition to northern Gre
Found on http://en.wikipedia.org/wiki/Snake_coils_(geology)
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