“…However, as the number of sources and the spatial scale increases, a single property becomes inadequate for discriminating a wide range of potential sources, and thus, composite fingerprints of multiple properties have been widely used for some time (Collins & Walling, ; Collins, Walling, & Leeks, ; Collins, Walling, Webb, & King, ; Koiter et al, ; Laceby & Olley, ; Walling, ; Walling & Woodward, ; Wilkinson, Hancock, Bartley, Hawdon, & Keen, ). Multiple composite fingerprints have also increasingly been used applying selected independent statistical tests as a means of exploring the uncertainty associated with using different combinations of tracer properties (Collins et al, ; Evrard et al, ; Palazon et al, ; Zhang, Liu, Liu, & Zhang, ). Comprehensive reviews of existing work using sediment source fingerprinting and associated uncertainties and limitations have recently been provided by Owens et al () and Collins et al ().…”