Formation ages and thermal histories of fracture-filling hematite and Mn-oxide in Precambrian basement from (U-Th)/He dating and 4He/3He diffusion experiments

Peter W Reiners, University of Arizona, Geosciences, Tucson, AZ, United States, David L Shuster, Berkeley Geochronology Center, Berkeley, CA, United States and Nathan Evenson, University of Arizona, Department of Geosciences, Tucson, AZ, United States
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