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Date: 2012-03-12 23:50:47Chemistry Light sources Geochronology Cosmologists Russell Humphreys Radiometric dating Noble gas Age of the Earth Zircon Physics Matter Helium | Microsoft Word - Loechelt Manuscript R8s9.docAdd to Reading ListSource URL: www.asa3.orgDownload Document from Source WebsiteFile Size: 1,76 MBShare Document on Facebook |