Mathematics – Logic
Scientific paper
Jan 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999adspr..23..371a&link_type=abstract
Advances in Space Research, Volume 23, Issue 2, p. 371-376.
Mathematics
Logic
5
Scientific paper
Icy formations are often found in the cosmos: there are comet's nuclei, polar caps of Mars and of other planets and Europa, the Jupiter's satellite covered with icy crust. Various inclusions of mineral and organic compounds have been permanently accumulated in the ice thickness which protects them from subsequent environmental influence and ensures their reliable and long-term preservation. So icy bodies are unique objects for searching microorganisms and studying ancient ecological events that occurred during formation of icy layers. Complex microbiological and glaciological investigations at Vostok station carried out during a number of years resulted in the discovery of well-preserved cells of microorganisms of different taxonomic groups, as well as plant pollen and unicellular algae in the ice sheet horizons the age of which exceeds 300,000 years. Upon incubation of some samples with radiocarbon labeled organics an evidence of the preservation of some viable microorganisms has been provided. The investigation of ice bodies in an attempt to find any possible form of microscopical life has an advantage over analogous studies of other cosmic solids because the cells of microorganisms and other inclusions can be released from the melted ice without destruction and can be studied unambiguously by different methods of microscopy.
Abyzov Sabit S.
Barkov Nartsiss I.
Bobin Nikita E.
Kudryashov Boris
Lipenkov Vladimir Y.
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