Record Display for the EPA National Library Catalog


Main Title Thorium-230 Dating of Thermal Waters in the Vicinity of the Nevada Test Site.
Author Holloway, R. W. ; Carilli, J. T. ; Faller, S. H. ; Liu, C. K. ; Kuroda, P. K. ;
CORP Author Environmental Monitoring Systems Lab., Las Vegas, NV. ;Nevada Univ., Las Vegas. Environmental Research Center.
Publisher c1989
Year Published 1989
Report Number EPA/600/J-89/120;
Stock Number PB90-113341
Additional Subjects Lakes ; Springs(Water) ; Radioactive age determination ; Quantitative analysis ; Ground water ; Radiochemistry ; Tables(Data) ; Graphs(Charts) ; Reprints ; Nevada test site ; Thermal waters ; Thermal springs ; Hot springs ; Thorium 230 ; Thorium 232 ; Uranium 234 ; Uranium 238
Library Call Number Additional Info Location Last
NTIS  PB90-113341 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
Radiochemical measurements of the concentrations of thorium and uranium isotopes were carried out for a total of 10 samples of hot springs, mineral springs and lakes collected in the vicinity of the Nevada Test Site. The uranium to thorium ratios in the water samples were found to be generally much greater than those in soils and in rainwater. The apparent (230)Th ages calculated from the (230)Th/(232)Th and (234)U/(238)U ratios for most of these water samples were less than 100 years.