Heinrich layer in Antarctic marine sediments and its significance to global changes

Results of grain size analysis and rode magnetic measurements of core NP95- 1 from Prydz Bay, Antarctica revealed two series of ice-rafted detritus lay ers, which correspond to cold climatic events, Younger Dryas and Heinrich e vent 1, occurring at about 11.7-10.3 and 14.3-13.6 kaB. P. respectively. St udies also show that the sequence of paleoclimatic changes in Antarctica ca n be correlated with that in other parts of the world, and that the millenn ial climate of the earth could change synchronously and globally. In additi on, magnetic fabric analysis also shows a close relationship between paleoc limatic change and ocean circulation re-assemblage.