We now know the age of the glaciation accurately from radiometric dating of the carbon-14 in logs buried in the drift.

我们现在通过测量掩埋在漂流物中木头放射性的碳-14元素，以精确地确定冰川作用的时期。

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Carbon dating works by comparing the amount of carbon 14, which is a less common and less stable form of carbon, to the more abundant carbon 12.

碳的年代测定工作是将碳14(碳处于这种状态并不常见，也不稳定)与碳12(碳的常见状态)的含量进行对比。

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The project aims to find Lisa's bones and possibly reconstruct her face using carbon dating, DNA analysis and forensic techniques.

这次项目旨在找到丽莎的骨头，然后可能可以利用碳年代测定法、DNA 分析和法医技术重新将她的面容建立起来。

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The team collected pieces of the coral and then used radio-carbon dating methods to find their age.

VOA: special.2009.05.12

Although there were no machines for detecting them systematically before 1935, cosmic rays have left their footprints in the geological record by creating radioactive elements such as the carbon-14 used in carbon-dating.

ECONOMIST: Global warming: In flux | The

There are many different isotopes of carbon and one that we have probably heard of is in the form of carbon-14, known for radio-carbon dating, but where does this radioactive isotope come from?

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To do the sleuth work for the various lawsuits, Koch has assigned private investigators (who he described as ex-CIA and ex-FBI agents) tasks ranging from tracking down printers of counterfeit wine labels, to carbon-dating bottles and listening in on a phone call with Greenberg.

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