Through the centre runs the Kyritz Lake Chain and the chain of elongated tunnel valleys around Lake Ruppin.
22.
Ryesgade lies on the southern slope of a tunnel valley that runs through the central part of the city.
23.
In southern Africa a Permo-Carboniferous tunnel valley system has been identified in northern Cape Province, South Africa.
24.
Tunnel valleys were formed by subglacial erosion by water and served as subglacial drainage pathways carrying large volumes of melt water.
25.
The filled configuration is significant because filled tunnel valleys become excellent reservoirs for either water ( aquifer ) or for oil.
26.
Melt water carried debris and flowed beneath the glacier under high pressure, to produce tunnel valleys, deeply incised water routes.
27.
Typical landforms within the " Zungenbecken " of the Alpine Foreland are drumlins, but there are rarely any tunnel valleys.
28.
With progressive sediment erosion by the meltwater, ice deforms under its own weight into the cavity to creating an ever larger tunnel valley.
29.
These thick layers of ice cut through the Platteville limestone cap rock with tremendous force, forming tunnel valleys, and released glacial meltwater.
30.
Tunnel valleys appear in the technical literature under several terms, including tunnel channels, subglacial valleys, iceways, snake coils and linear incisions.
