A 6-ka climatic cycle during at least the last 50,000 years.

Abstract

The distribution of 264 dates in the interval 12,000-50,000 years BP from terrestrial and raised marine sediments from ic-free intervals in Norway shows a fairly strong cycle with a period of c.6 thousand years. The cycle, or semicycle (sensu-stricto) is supported by spectral analysis and autocorrelation. The latter indicates statistical significance for a 6 ka cycle at probability p<0.05.\r(Forkortet)