Ice edge location
The edge of the ice marks the former front of the Ice Age glaciers in Northern Germany, which was reached at each stage . This neutral-sounding term was introduced because most terminal moraine lines are not continuously available, but the former course of the ice edge can often still be reconstructed quite well using other evidence. The term “Eisrandlage” is therefore closely linked to the glacial series .
In addition to the existing terminal moraines, the indications for an ice edge location include:
- In the young moraine land, the appearance of kettle basins and lakes proves the presence of the glacier in the area concerned.
- Sanders that border on northern ground moraine areas without a terminal moraine . The sander edge thus corresponds to the position of the ice edge.
- The presence of glacial till , which is deposited under the ice, also demonstrates the presence of the former glacier.
- High-altitude terraces on rivers and glacial valleys , which would be inconceivable without the blockage of today's deeper drainage routes by glacial ice.
Since all of northern Germany was shaped by the landscape of the Ice Age glaciers, there are several ice edge layers that are assigned to the Saale and Vistula ice ages .
Well-known ice edge locations in Germany:
- The ice edge of the Rehburg phase , which stretches from the north of the Dutch city of Zwolle to the north of Magdeburg . It was created in the older stage (Drenthe Stadium) of the Saale Ice Age and can be easily recognized in the terrain.
- The main edge of the ice during the Warthe stage in the Saale Ice Age forms the main heights of the southern ridge today .
- The Brandenburg ice edge location (after the state of Brandenburg ) marks the furthest advance of the inland ice during the Vistula Ice Age .
- The Frankfurt ice edge location , after the city of Frankfurt (Oder) , represents a remelting stop of the inland ice between the Brandenburg and Pomeranian ice edge locations.
- The Pomeranian ice edge is the most strongly developed ice edge in northern Germany. It also has an almost closed terminal moraine.
Individual evidence
- ↑ Inga Treptow: The Harburg Mountains - an example of the glacial series in the North German glaciation area . In: Academic series . GRIN, 2008, ISBN 3-640-11476-0 , pp. 11 ( map in google book search).