Комментарий к фотографии от автора:
Compressed forces which appear while temperature drops, contact with
resistance of uneven shorelines to which ice shell is "soldered on"
along the whole contour of the lake. The forces tear ice to 10-30 km.
fields, and form among them thermic joints, which called permanent
cracks. The location and direction of the cracks do not change,
while their breadth always varies from up 0,5 to 4 meters.
In the picture: a permanent crack at Shamanka Rock (Olkhon Island).
|