And remember, zircons are also used in radiometric dating.
请住,锆石用于辐射 测年。
If this surface is in fact fossilized lava flow, researchers may discern the lake's age, thanks to radiometric dating.
如果这个表面实际上是化石熔岩流,研究人员可以通过射性测年法辨别出该湖的年龄。
But even with radiometric dating, as decay measurements became known, it would be decades before we got within a billion years or so of Earth's actual age.
但是,即使利用射性测定年代法,即后来所谓的衰变计法,要等几十年以后我们才得出地球的真正年龄大约是在10亿年以内。
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