How are climatic and environmental signals preserved in an Ice Sheet ?

Abstract

Snow-ice cores obtained from ice sheets and glaciers are formed from deposited snow and other materials of marine, terrestrial, cosmic and artificial origin.
The depositional mode of these materials is presumed to be a good signal of climatic and environmental changes during the past several hundred thousand years.
In this report, formation processes of these deposits are investigated mainly on the basis of knowledge of regional characteristics of deposition processes obtained from a comprehensive Japanese glaciological study during 19671989 on the Antarctic Ice Sheet.