El Zorro
08-03-2005, 01:00 PM
Does anyone know what this thing is?
Rwootton
08-04-2005, 05:40 PM
Pingos are formed in permafrost and are large ice-cored hills, 10s m high and up to 1200 m in diameter.
source:
http://www.geo.wvu.edu/~kite/Geol221_2001Lect22Periglacial/sld052.htm
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