Radioactive dating of rock samples

Different methods of radiometric dating vary in the timescale over which they are accurate and the materials to which they can be applied.

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Carbon 14 is continually being created in the Earth's atmosphere by the interaction of nitrogen and gamma rays from outer space.Geologist determine the age of rocks using radioactive dating.The radioactive dating relies on spontaneous decomposition into other element.The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay.and is now the principal source of information about the absolute age of rocks and other geological features, including the age of fossilized life forms or the age of the Earth itself, and can also be used to date a wide range of natural and man-made materials.The best estimate from this dating technique says the man lived between 33 BC. From the ratio, the time since the formation of the rock can be calculated.

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