Dr. Hayes’s paper, “Some mathematical and geophysical considerations in radioisotope dating applications,” is published in the journal, Nuclear Technology. The work was supported by the Nuclear Regulatory Commission under grant NRC-HQ-84-14-G-0059 and Oak Ridge National Laboratory through agreement number ORNL-675.  An oversight in a radioisotope dating technique used to date everything from meteorites to geologic samples means that scientists have likely overestimated the age of many samples, according to new research from North Carolina State University.

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