Reports

Stalactite Growth beneath Sea Ice

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Science  09 Jan 1970:
Vol. 167, Issue 3915, pp. 171-172
DOI: 10.1126/science.167.3915.171-a

Abstract

Fresh ice stalactites were observed beneath sea ice in Antarctica. They are hollow, tapering, inverted cones having a base diameter between 10 and 20 centimeters and a tip diameter of 4 to 10 centimeters extending downward about 100 centimeters. The stalactites form when dense, chilled brine drains downward from the ice sheet into seawater of norma1 salinity and near-freezing temperature.