Ice skater
An ice canter is the term used for attachments that have been ground into a characteristic, often keel-like shape by glacier- related deterrence . At first glance, they resemble the Windkantern , but they have a different history.
Origin and Distribution
Ice canters are mostly found in the glacial till . The glacial ice gradually deposits the glacial till, which means that the particles of the glacial till are smeared onto the subsoil grain by grain from the ice, which slowly melts at its base. There are two ways in which large debris can get scratched from the glacier. Either it's still in the ice and moving. Then the bottom of the piece is sanded over the substrate. When it has been deposited and no longer moves, the glacier above (or rather the moraine material in it) grinds the stone. Since attachments are mostly aligned (longitudinal axis in the direction of movement of the glacier), the attachments are usually sanded above and below , so ice canters are not so common. If, however, the stone rotates when it is deposited, two surfaces can be ground that meet at a more or less acute angle. An ice cream maker is created. As the glacier continues to deposit material, the till is also deposited over the bed load. The stone then appears to float in the till. In contrast to the more convex surfaces of a wind canter, the surfaces of an ice canter are more flat.
Eiskanter are common in the formerly glaciated areas of Central Europe (Alpine foothills, northern Germany).
literature
- Dirk Pittermann: Scratched attachments and ice canter transport marks of glacial origin . In: Messages from the NGM . tape 7 , no. 1 , November 2007, p. 37–39 ( verwaltungsportal.de [PDF; 545 kB ]).