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USGS CMG InfoBank Geology School: isotopic ratio

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Title Comment Keywords
Determining the Age of Rocks 22:16 - 23:19 (01:03) / 1.1 MB "geologic age", mineralogy, mineral, element, isotope, "mass spectrometer", "isotopic ratio", "absolute age dating"
Geology School Keywords
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URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/keypage/isoto.html
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Page Last Modified: Tue Feb 5 05:13:03 PST 2013  (chd)