Submarine permafrost in the nearshore zone of the southwestern Kara Sea
The results of seismic studies in the shallow waters of the southwestern Kara Sea show the presence of a seismic unit that can be interpreted as relict submarine permafrost. The permafrost table has a strongly dissected upper surface and is located at a water depth of 5-10 m. A 3D modeling of the pe...
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Veröffentlicht in: | Geo-marine letters 2005-06, Vol.25 (2-3), p.183-189 |
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creator | Rekant, P Cherkashev, G Vanstein, B Krinitsky, P |
description | The results of seismic studies in the shallow waters of the southwestern Kara Sea show the presence of a seismic unit that can be interpreted as relict submarine permafrost. The permafrost table has a strongly dissected upper surface and is located at a water depth of 5-10 m. A 3D modeling of the permafrost table suggests the presence of relict buried thermodenudational depressions (up to 2 km across) at a water depth of 5-10 m. The depressions may be considered to be paragenetic to thermocirques found at the Shpindler site. Relict thermocirques are completely filled with sediment and not exposed at the sediment surface. [PUBLICATION ABSTRACT] |
doi_str_mv | 10.1007/s00367-004-0199-5 |
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subjects | Coasts Ice Marine Permafrost Sediments Seismology Shallow water Three dimensional imaging Water depth |
title | Submarine permafrost in the nearshore zone of the southwestern Kara Sea |
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