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I found this nugget in the article to be of interest: team led by Paul Renne, director of the Berkeley Geochronology Center and an adjunct professor of earth and planetary science at the University of California, Berkeley, said they were able to refine the so-called argon-argon dating method to reduce uncertainty. The method compares the ratio or two types of the element argon found in rocks.The greater precision matters little for recent events in the last few million years, according to Renne, but it can be a major problem for events in the early solar system. For example, a one percent difference at 4.5 billion years is almost 50 million years.The new system reduces that potential uncertainty to one-fourth of one percent, the researchers said.Of course, the young earth wankers will still argue there is error in radiometric dating methods but they just became marginalized by another quarter of a percent.cliff
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