Sublimation of ice through sediment in Beacon Valley, Antarctica
published at : Special issue : the geomorphic and climatic significance of rock glaciers
The time-dependent physics of ice sublimation through thin layers of till is considered, to determine whether sublimation could be sufficiently slow to permit the preservation of ice for 8 MA in the Dry Valleys, Antarctica. Steady-state models suggest that sublimation is rate-controlled by vapor transport. A time-dependent model coupling vapor concentration, air pressure, temperature and ice concentration is formulated, and the resulting equations solved non-linearly. The results mean either that vapor transport is being slowed down by some unconsidered physical process or that the ice is much younger than 8 Ma
published at : Geografiska annaler. Series A. Physical geography / ISSN 0435-3676 / CODEN GAPGAP
Editor : Svenska sällskapet för antropologi och geografi, Stockholm - SUEDE (1965)
Millesime : 1998, vol. 80, no 3-4 [pp. 209-219]
Bibliographic references : 18 ref.
INIST-CNRS, Cote INIST : 2704 A