Although minor in abundance in Earth's crust (U, 2–4 ppm; Th, 10–15 ppm) and in seawater
(U, 0.003 ppm; Th, 0.0007 ppm), light actinides (Th, Pa, U, Np, Pu, Am, and Cm) are …

Reactions of the light actinide ions (Th to Cm) at the mineral− aqueous solution interface
have attracted much attention during recent years. Initially research was mainly driven by the …

The zetapotential of calcite in contact with aqueous solutions of varying composition is
determined for pre-equilibrated suspensions by means of electrophoretic measurements …

Lanthanides/actinides sorption speciation on minerals and oxides by means of time
resolved laser fluorescence spectroscopy (TRLFS), extended X-ray absorption fine structure …

Surface reactions on calcite play an important role in geochemical and environmental
systems, as well as many areas of industry. In this review, we present investigations of …

Calcite is the most stable polymorph of calcium carbonate (CaCO3) under ambient
conditions and is ubiquitous in natural systems. It plays a major role in controlling pH in …

Anhydrous carbonate and sulphate-bearing solids are formed on Earth under very different
environmental conditions and are the most abundant constituents in so-called chemical …

Understanding the environmental and biogeochemical behaviour of radionuclides is
essential for managing our nuclear legacy safely. Remediation efforts and the concept of …

The behaviour of U (VI) in hyperalkaline fluid/calcite systems was studied over a range of U
(VI) concentrations (5.27× 10− 5 μM to 42.0 μM) and in two high pH systems, young and old …

Neptunium (V) and uranium (VI) are precipitated from an aqueous potassium–sodium-
containing carbonate-rich solution, and the solid phases are investigated. U/Np M4, 5-edge …