Talk:Samarium–neodymium dating

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Accuracy and Valid Date Range?[edit]

One piece of information that is missing is the range of ages that this dating method is believed to be accurate for. Since the 1/2 life is on the order of 10^8, I imagine it will be pretty ancient, and also not be very accurate for "young" dates. --156.80.63.241 15:14, 27 April 2006 (UTC)[reply]