Pot holes in Stångehuvud   To the home page

The two pot holes above Hästevik are exciting reminders of the time when the ice was melting.

It is not known in detail how pot holes were formed. The theory that a stone was rotating in the bottom and created the excavations is highly uncertain. Some geologists believe that the so-called cavitation phenomenon is part of the explanation for the formation of pot holes. According to this explanation water molecules in heavy swirls of meltwater would have passed between gaseous and liquid form. At the low pressure prevailing inside the swirls the water molecules "exploded" with extreme erosive effects in the rock. According to this theory pot holes would have been formed in a very short time, perhaps only in a few days!