Figure 6From: Distribution of U and REE on colloids in granitic groundwater and quality-controlled sampling at the Mizunami underground research laboratory Changes in concentrations of U and colloid-forming elements from the boreholes. The concentrations of (a) U, (b) TOC, (c) Fe, and (d) Al during groundwater exchange in the 09MI20 (triangles) and the 10MI26 (circles) boreholes.Back to article page