Date of Award
Fall 12-2-2011
Degree Type
Thesis
Degree Name
Master of Science (MS)
Department
Geosciences
First Advisor
Dr. W. Crawford Elloitt
Second Advisor
Dr. Daniel Deocampo
Third Advisor
Dr. Jeremy Diem
Abstract
The 1.85 Ga Flin Flon paleosol located in Flin Flon, Manitoba, Canada, is studied with the purpose of determining the timing and geochemical trend of uranium migration. Radiometric minimum ages of sediments and paleosols indicates the presence of a post-depositional event, these ages are bracketed by the Trans-Hudson orogeny event (2155–1750 Ma) which resulted in the alteration of κ(Th/U) and µ(U/Pb) ratios by exposing volcanics to the atmosphere and instigating the mobilization of U. The profile shows that the Missi sediments lost Uby 84% average relative to corrected average upper crust value. The upper paleosol gained U by 11% and the lower paleosol lost U by 17%, relative to least weathered parent volcanics. Upward addition of U within the paleosol is associated with metasomatism. Potential mineralization of uranium occurs downgradient of the Missi and paleosol contact.
DOI
https://doi.org/10.57709/2400495
Recommended Citation
Valencia, Federico Arturo, "Whole-Rock Lead-Lead Systematics and Major Element Analyses on the 1.85 GA. FLIN FLON Paleosol, Manitoba, Canada: Implications for Uranium Mobility.." Thesis, Georgia State University, 2011.
doi: https://doi.org/10.57709/2400495