title: Core drilling through the ross ice shelf (antarctica) confirmed Basal freezing.
abstract: 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.
authors.forename: I A
authors.initials: IA
authors.lastname: Zotikov
authors.forename: V S
authors.initials: VS
authors.lastname: Zagorodnov
authors.forename: J V
authors.initials: JV
authors.lastname: Raikovsky