OPTIMIZEDSTORAGE CONDITION OF DEEP ICE THE VIEWPOINT OF AIR-HYDRATECORE SAMPLES FROM ANALYSIS

Experimental data on the dissociation rate ot' air-hydrate crystals in Vostok cores, Antarctica, and Dye-3 cores, Greenland, during their long term stoTage revealed that dissociation of the crystals affected the volumc expansion of deep ice cores. The temperature dependence ot' thc dissociation rate of the air-hydTate crystals determines the optimizcd storage temperature and the time period for beth the transportation of ice ceres and their leng steragc plans. The results also suggest that dcep ice cores should be stored in the shape of bulk samples to prevent the from dissociating, including the air-hydrate crystals.