A new report from the USGS describes uranium isotope data from "analyses completed at
Northern Arizona University for groundwater and solid-phase leachate samples
that were collected in and around Tuba City Open Dump, Tuba City, Arizona, in
2008."
Ref: Johnson, R.H., Horton, R.J., Otton, J.K., and Ketterer, M.K., 2012, 234U/238U isotope data from groundwater and solid-phase leachate samples near Tuba City Open Dump, Tuba City, Arizona: U.S. Geological Survey Open-File Report 2012–1126, 2 p.
Cladophlebis denticulata Plant Fossil
8 hours ago
Thank you for the interesting information
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