Q
why is zircon used to date old rocks
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Zircon is an invaluable tool in the field of radiometric dating. as it contains naturally occurring radioactive elements such as uranium and ochre. As these elements gradually decay into lead. they allow scientists to accurately determine the age of the zircon samples. Additionally. zircons have a high resistance to weathering and erosion. making them ideal for measuring the age of extremely old materials. It should also be noted that when forming from lava. zircons do not incorporate lead into their structure. Therefore. any lead found in zircons is solely due to the decay of uranium and uranium and not due to external contamination. This property further enhances the utility of zircon in radiometric dating.
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