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This dating method covers the past period of years due to the half-life of about 22 years. Subsequently, they are cut into slices of approximately 1 cm and dried, whereupon the content of dry matter and possibly the loss on ignition are determined. In the series of unstable products from the radioactive decay of uranium, lead results from the decay of radon and is a precursor of the stable isotope lead If the concentration of substances at different depths is compared with the corresponding ages, the accumulation rates of these substances at different times may be determined from the sediment accumulation rate. Thus, it will be possible not only to describe the sediment age, but also to give a picture of the dominant mixture of plankton alga at the same time. Democracy, literally, rule by the people.