Frost-sorting on level stony ground produces stone circles, such as this one in the Murchisonfjorden area of Nordaustlandet, Svalbard. The outside diameter is approximately 1m. |
Frost-sorting on level stony ground produces stone circles, such as this one in the Murchisonfjorden area of Nordaustlandet, Svalbard. The outside diameter is approximately 1m. |