Аннотация:The results of hydro-geochemical and isotopic studies of tabular ground ice and crater-lake waterfrom the gas-emission crater in the Yamal Peninsula are analyzed. These data are compared with the results of similar studies of tabular and ice-wedge ice, as well as surface and atmospheric waters of the Yamal Peninsula. Similarity in the isotopic and ionic composition of the crater tabular ground ice and stratified tabular ice of Marre-Sale area was found, in contrast to the ionic and isotopic composition of surface and atmospheric waters, as well as polygonal ice wedges in the region.