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    • Cosmogenic and Nucleogenic 3He in Apatite, Titanite, and Zircon 

      Farley, K. A.; Libarkin, J.; Mukhopadhyay, Sujoy; Amidon, W. (Elsevier, 2006)
      Cosmogenic He-3 was measured in apatite, titanite, and zircon and cosmogenic Ne-21 in quartz at 13 depth intervals in a 2.7-m long drill core in a Miocene ignimbrite from the Altiplano of Bolivia. All three He-3 depth ...