Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS
NATURE Home Current Season Episode Index NATURE Shop Contact Us For Teachers
Video DatabasePuzzles & FunEpisode PreviewsAnimal Guides
Photo Essay
Under Antarctic Ice
photos   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16 

Previous Photo | Next Photo

 ©2003 Norbert Wu/

back to episode homepage

Sea ice stalactites are hollow, tapering structures up to several feet long. As ice forms from seawater, the salts are left as a brine solution. This dense, chilled brine drains down from the sea ice ceiling, entering the near-freezing seawater below. Ice forms around this draining, flowing brine, forming a hollow ice stalactite. I could often see the denser brine water draining from the tips of these stalactites.

--Norbert Wu