1. Discrimination between sediment and soil samples for forensic purposes using elemental data: An investigation of particle size effects 
Kenneth Pye, Simon J. Blott, Debra J. Croft, Samantha J. Witton 
Forensic Science International 
Volume 167, Issue 1, Pages (March 2007)
DOI: /j.forsciint
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2. Fig. 1 The study area and locations of sampling sites.
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3. Fig. 2
Graphical comparisons of particle size parameters: (a) mean, (b) median, (c) primary mode, (d) %sand, (e) %silt, (f) %clay, (g) % <150μm, (h) % 63–150μm, (i) % 20–63μm, and (j) % <20μm in 17 sediment samples from the River Avon, determined by laser granulometry.
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4. Fig. 3
Averages and standard deviations for (a) %SiO2, (b) %Fe2O3, (c) Ba, (d) Cu, (e) Ce and (f) U in the bulk sediments and four different size fractions of 17 sediment samples from the River Avon.
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5. Fig. 4
Bivariate plots of (a) Al2O3/Fe2O3 vs. Al2O3/K2O and (b) SiO2/Al2O3 vs. K2O/Na2O ratios for the bulk sediments and four different size fractions of 17 sediment samples from the River Avon.
Forensic Science International  , 30-42DOI: ( /j.forsciint )
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6. Fig. 5
Plots for the first and second principal components using data for all 49 elements determined by ICP-AES and ICP-MS: (a) bulk sediments, (b) <150μm fractions, (c) 63–150μm fractions, (d) 20–63μm fractions, (e) <20μm fractions and (f) bulk samples and all size fractions combined.
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7. Fig. 6
Agglomerative hierarchical cluster dendrograms calculated using Ward's method based on data for 49 elements determined by ICP-AES and ICP-MS: (a) bulk sediments, (b) <150μm fractions, (c) 63–150μm fractions, (d) 20–63μm fractions and (e) <20μm fractions.
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8. Fig. 7
Histograms showing along-river variation in values of the Al2O3/K2O ratio and SiO2/Al2O3 ratio: (a and f) bulk sediments; (b and g) <150μm fractions, (c and h) 63–150μm fractions, (d and i) 20–63μm fractions and (e and j) <20μm fractions.
Forensic Science International  , 30-42DOI: ( /j.forsciint )
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