dating who pays - Pb and cs dating
The facility has undertaken these analyses for research projects based in many areas of the world.
This approach can also be used in a number of other ways to investigate the distribution of radioisotopes in the environment through measurements of a wide range of environmental and ecological samples.
As a fallout radionuclide that is rapidly and strongly adsorbed by the surface soil, unsupported Cs except that its fallout input is essentially constant through time and the supply to the soil surface is being continuously replenished.
This explains the slight differences in the depth distributions of the two radionuclides evident in Fig. Because of the continuous surface replenishment, unsupported Cs the lack of significant replenishment over the past 20 years, coupled with biological activity within the soil and some downward diffusion, have caused the level of maximum concentration to be displaced a few centimetres below the surface.
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