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Fig. 3.5 a Bivariate plot illustrating the ability of 137 Cs and 210 Pb ex to discriminate between burnt
and unburnt surface and subsurface sediments within a catchment of the Nattai River near Sydney,
Australia. Radionuclide concentrations were measured on the
<
10m particle-size fraction and were
corrected for radioactive decay fromMay 2002 (figure fromWilkinson et al. 2009 ); b Illustration of
the use of 7 Be and 137 Cs to discriminate between sources types within cultivated and uncultivated
fields within a small catchment in Mid Devon, UK (from Walling 2013 )
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