how can radiometric dating be used in the field of taxonomy

The acidity of the oceans is directly related to the carbonate cycle. J Non-Cryst Solids — Furthermore, the decay of Thorium to lead was unknown. Then, in a potassium-bearing system isolated from external influences, the growth of radiogenic 40 Ar and 40 Ca follows the equation:. Hodson, M. In , they further suggested that soil-derived carbon older carbon absorbed by plant roots is a possible reason for the old phytolith ages obtained for living plants Santos et al. Second, if the phytolith dating results are older than expected even ten thousand years older , one should repeat the experiment and revaluate if the protocols used could exclude all carbonate and other minerals from the samples.

HOW CAN RADIOMETRIC DATING BE USED IN THE FIELD OF TAXONOMY / janiceclark.net

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