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USGS CMG InfoBank Geology School: lead-207

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Title Comment Keywords
Uranium-235 21:37 - 22:16 (00:39) / 0.8 MB radioisotope, uranium-235, element, lead-207, isotope, "absolute age dating"
Geology School Keywords
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Page Last Modified: Tue Feb 5 05:13:04 PST 2013  (chd)