A cryptodepression is a depression in the Earth's surface that is below mean sea level, and which is filled by a lake. The term is derived from the Ancient Greek word κρύπτoς ('hidden') and depression.
Lakes are often long and narrow. Further, the surrounding landscape and the shore of the lake can be very steep.
Simple calculation example: Lago O'Higgins/San Martín Surface elevation 250 m - Maximal depth 836 m = _________________________________ Cryptodepression -586 m
- Glacial lakes and moraine-dammed lakes: major prealpine lakes in Italy have cryptodepressions created by erosion. In other parts of the Alps, Swiss, Bavarian and Austrian lakes, cryptodepressions are not found because the lakes have significantly higher elevations. In North America, two of the Finger Lakes in New York, Cayuga Lake and Seneca Lake, are examples of cryptodepressions.
- Rift valleys: the deepest known cryptodepression on Earth is in Lake Baikal (-1200 m).
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- Fairbridge, R. W. (1968), "Cryptodepressions", in Fairbridge, R.W. (editor), Encyclopedia of Earth Science, Geomorphology, Berlin: SpringerCS1 maint: Extra text: editors list (link)
- Neuendorf, K.K.E.; Mehl, Jr., J.P.; Jackson, J.A. (editors) (2005). Glossary of Geology (5th edition). Alexandria, Virginia: American Geological Institute. p. 155.CS1 maint: Extra text: authors list (link)
- "criptodepressione". Enciclopedia Treccani (in Italian). Retrieved 11 October 2013.
- Fairbridge, R. W. (1968), "Cryptodepressions", in Fairbridge, R.W. (editor), Encyclopedia of Earth Science, Geomorphology, Berlin: Springer, archived from the original on 12 October 2013, retrieved 11 October 2013CS1 maint: Extra text: editors list (link)
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