Pb 210 dating technique

Posted by / 09-Dec-2019 03:06

Pb 210 dating technique

Join Britannica's Publishing Partner Program and our community of experts to gain a global audience for your work!Many radioactive dating methods are based on minute additions of daughter products to a rock or mineral in which a considerable amount of daughter-type isotopes already exists.This is possible in potassium-argon (K-Ar) dating, for example, because most minerals do not take argon into their structures initially.

Should a point plot below the line, it could indicate that a particular sample was open to migration of the dating elements or that the sample was contaminated and lay below the isochron when the rock solidified.Our website uses cookies to gather anonymous statistics related to our content usage.We use this data to improve our sevices and identify occasional problems.In uranium-lead (U-Pb) dating of zircon, the zircon is found to exclude initial lead almost completely.Minerals too are predictable chemical compounds that can be shown to form at specific temperatures and remain closed up to certain temperatures if a rock has been reheated or altered.

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The objective of this study was to trace the time evolution of metal contaminants in sediments and its correlation with the industrial history of the area.