Articles | Volume 15, issue 4
Brief communication
19 Apr 2021
Brief communication |  | 19 Apr 2021

Brief communication: New radar constraints support presence of ice older than 1.5 Myr at Little Dome C

David A. Lilien, Daniel Steinhage, Drew Taylor, Frédéric Parrenin, Catherine Ritz, Robert Mulvaney, Carlos Martín, Jie-Bang Yan, Charles O'Neill, Massimo Frezzotti, Heinrich Miller, Prasad Gogineni, Dorthe Dahl-Jensen, and Olaf Eisen

Data sets

VHF Radio Echo Sounding from Dome C to Little Dome C D. Lilien, D. Steinhage, D. Taylor, J.-B. Yan, C. O'Neill, H. Miller, P. Gogineni, D. Dahl-Jensen, and O. Eisen

Short summary
We collected radar data between EDC, an ice core spanning ~800 000 years, and BELDC, the site chosen for a new oldest ice core at nearby Little Dome C. These data allow us to identify 50 % older internal horizons than previously traced in the area. We fit a model to the ages of those horizons at BELDC to determine the age of deep ice there. We find that there is likely to be 1.5 Myr old ice ~265 m above the bed, with sufficient resolution to preserve desired climatic information.