Figure 10. Stable isotope results for suspended sediment samples from the Tualatin River basin, Oregon, with shading showing groups of Tualatin River samples. Trends with river mile shown with a correlation coefficient (Spearman ρ) were statistically significant (α=0.05, α=0.08 for ρ*, NS=not significant). [^a=fraction that settled after 24 hours, ^b=fraction remaining suspended after 24 hours, TR=Tualatin River, number following TR=river mile location, L-Su=late-summer].

First posted August 17, 2010