In the Arctic regions of the Mackenzie Delta small hills, so-called Pingos, arise in the flat tundra landscape. They form in permafrost areas where there was once a lake that has since dried up or drained. The thawed, water saturated soil under the former lake freezes slowly. The expanding ice pushes up the soil until a volcano-like cone appears. The process takes hundreds of years. Pingos can reach a height of more than 40 m.
TITLE |
PINGO, MACKENZIE DELTA, CANADA |
LOCATION |
Mackenzie Delta, Kanada |
DATE |
August 2005 |
HEIGHT |
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TECHNIC |
Hasselblad body, Zeiss lens |
FORMAT |
medium format, 6 x 6 |
REMARK |
aerial image |
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[INFORMATION]