@article{oai:nipr.repo.nii.ac.jp:00003774,
 author = {Uchida, Tsutomu and Mae, Shinji and Hondoh, Takeo and Duval, Paul and Lipenkov, Volodya Ya.},
 journal = {Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology},
 month = {Sep},
 note = {P(論文), Microscopic observations of air-hydrate crystals in Vostok ice cores, Antarctica, revealed that air-hydrate crystals acted as obstacles to the grain boundary migration. About half of the air-hydrate crystals were observed to be located on the grain boundaries; their volume concentrations were more than (10)^3 times larger than dust concentration (J. R. PETIT et al., Nature, 326,62,1990). The presence of air-hydrate crystals on grain boundary was considered to reduce effectively the ice grain growth rate. However, air-hydrate crystals did not result in marked changes in grain size associated with climate transitions.},
 pages = {7--13},
 title = {Effects of air-hydrate crystals on ice grain growth},
 volume = {7},
 year = {1993}
}