Isotopic identification of natural vs. anthropogenic sources of Pb in Laramie basin groundwaters, Wyoming, USA
作者： R. Toner , C. Frost , K. Chamberlain
DOI: 10.1007/S00254-002-0682-0
关键词:
摘要: Water well samples, precipitation, and leachates of aquifer rock samples from the Laramie basin, Wyoming, were analyzed to test suitability Pb isotopes for tracing hydrologic processes in a basin where Sr had proven effective. Leachable host rocks aquifers this have isotopically distinct compositions isotopic would be effective differentiating natural sources Pb. However, almost all cases, signal is apparently swamped by anthropogenic drilled water wells. The these cannot produced any combination precipitation leached alone, but are consistent with mixtures Thorogenic (208Pb) vs. uranogenic (206Pb, 207Pb) was especially useful discriminating samples. It strongly recommended that four reported environmental studies employ approach.
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