A Combined (U‐Th)/He and Cosmogenic 3He Record of Landscape Armoring by Biogeochemical Iron Cycling
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DOI: 10.1002/2017jf004282
Abstract: (U‐Th)/He geochronology and cosmogenic ^3He in iron oxides reveal mineral precipitation ages as old as 55 Ma and exposure ages greater than 5 Ma for canga‐cemented plateaus in the Quadrilatero Ferrifero, Brazil, showing that lateritic… read more here.
Keywords: combined cosmogenic; cosmogenic 3he; record; landscape ... See more keywords