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Radioactive and radiogenic isotopes in sediments from Cooper Creek, Western Arnhem Land

Frostick, Alison, Bollhoefer, A., Parry, David L., Munksgaard, Niels C. and Evans, Ken G. (2008). Radioactive and radiogenic isotopes in sediments from Cooper Creek, Western Arnhem Land. Journal of Environmental Radioactivity,99(3):468-482.

Document type: Journal Article

IRMA ID 80801800xPUB3
Title Radioactive and radiogenic isotopes in sediments from Cooper Creek, Western Arnhem Land
Author Frostick, Alison
Bollhoefer, A.
Parry, David L.
Munksgaard, Niels C.
Evans, Ken G.
Journal Name Journal of Environmental Radioactivity
Publication Date 2008
Volume Number 99
Issue Number 3
ISSN 0265-931X   (check CDU catalogue open catalogue search in new window)
Start Page 468
End Page 482
Total Pages 15
Place of Publication United Kingdom
Publisher Elsevier
Field of Research 0399 - Other Chemical Sciences
0599 - Other Environmental Sciences
HERDC Category C1 - Journal Article (DEST)
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.
Keywords Stable lead isotopes
Mine site rehabilitation
Radionuclides
Trace metals
DOI http://dx.doi.org/10.1016/j.jenvrad.2007.08.015   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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Created: Fri, 12 Sep 2008, 08:35:25 CST by Administrator