. The Astrobiology Web: Your Online Guide to the Living Universe TM
An Antarctic Photo Album, Volume 4
by Dale Andersen

Text and Photographs ©copyright 1996 Dale T. Andersen. All Rights Reserved. Reproduced with permission.

[291] Pinnacle Mat

Pinnacle mat located on the bottom of Lake Joyce in Pearse Valley. The depth is approximately 18 meters including 6 meters of ice that is covering the lake. Despite the thick ice-cover, sediment is able to make its way through holes and cracks that develop. The result is a sediment 'dump' on the bottom of the lake (which can be seen in the background of this photograph).

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