Lake Vostok cross-section,artwork

Numéro d’image : 11575525
Lake Vostok cross-section,artwork
Lake Vostok cross-section,cutaway artwork. This lake in Antarctica,the largest known subglacial lake in the region,has a surface area of around 14,000 square kilometres. Liquid water is thought to take thousands of years to pass through the lake (arrows). Ice cores have been taken (apparatus at upper centre) to a depth of several kilometres. Ice-penetrating radar and other studies have identified hundreds of lakes and shallow,swamp-like features below the Antarctic ice. It is thought that these environments form vast watersheds connected by rivers and streams that flow under the kilometres-thick ice sheet. When studying such ecosystems,care must be taken to avoid contamination
Licence : Droits gérés
Crédit: Science Photo Library / Rager Fuller, Nicolle / National Science Foundation
Taille de l’image : 4979 px × 3543 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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