Abstract:
:Protection of the environment post-mining is a key objective of rehabilitation, especially where runoff and erosion from rehabilitated mine sites could potentially lead to contamination of the surrounding land and watercourses. As part of an overall assessment of the success of rehabilitation at the former Nabarlek uranium (U) mine, an appraisal of stable lead (Pb) isotopes, radionuclides and trace metals within sediments and soils was conducted to determine the off site impacts from a spatial and temporal perspective. The study found localised areas on and adjacent to the site where soils had elevated levels of trace metals and radionuclides. Lead isotope ratios are highly radiogenic in some samples, indicating the presence of U-rich material. There is some indication that erosion products with more radiogenic Pb isotope ratios have deposited in sediments downstream of the former ore body. However, there is no indication that the radiogenic erosion products found on the mine site at present have significantly contaminated sediments further downstream of Cooper Creek.
journal_name
J Environ Radioactjournal_title
Journal of environmental radioactivityauthors
Frostick A,Bollhöfer A,Parry D,Munksgaard N,Evans Kdoi
10.1016/j.jenvrad.2007.08.015subject
Has Abstractpub_date
2008-03-01 00:00:00pages
468-82issue
3eissn
0265-931Xissn
1879-1700pii
S0265-931X(07)00226-3journal_volume
99pub_type
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