Abstract
Palaeomagnetic secular variation curves, that have been dated by varve analysis (counting annual laminations), are used to date four Holocene lacustrine sediment sequences from central Finland and northwest Russia (lat. 62–66°N). Several fine-scale geomagnetic declination and inclination fluctuations can be identified during the last 3200 yr, which is the most accurately dated interval in the present data. Relative palaeomagnetic dating is a powerful dating tool for sediments of large and deep lakes in northern Europe, which are difficult to date using the 14C method because of low organic content, contamination by older carbon and/or scarcity of terrestrial macrofossils suitable for AMS 14C dating. The dating error during the last 3200yr is estimated to be less than ±50 yr. Such accuracy is not readily attainable using other methods.
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