Core drilling through the ross ice shelf (antarctica) confirmed Basal freezing.


New techniques that have been used to obtain a continuous ice core through the whole 416-meter thickness of the Ross Ice Shelf at Camp J-9 have demonstrated that the bottom 6 meters of the ice shelf consists of sea ice. The rate of basal freezing that is forming this ice is estimated by different methods to be 2 centimeters of ice per year. The sea ice is composed of large vertical crystals, which form the waffle-like lower boundary of the shelf. A distinct alignment of the crystals throughout the sea ice layer suggests the presence of persistent long-term currents beneath the ice shelf.

Cite this paper

@article{Zotikov1980CoreDT, title={Core drilling through the ross ice shelf (antarctica) confirmed Basal freezing.}, author={I A Zotikov and Victor S Zagorodnov and J V Raikovsky}, journal={Science}, year={1980}, volume={207 4438}, pages={1463-5} }