Figure 10From: Distribution of U and REE on colloids in granitic groundwater and quality-controlled sampling at the Mizunami underground research laboratory Size-fractionated concentrations of REEs from water-conducting fractures in excavation walls. (a) LREE and (b) HREE in the ASP-198 fracture, and (c) LREE and (d) HREE in the ASP-199 fracture.Back to article page