Interpretation for the vanishment of hokutolite from aquatic parameters and radiochemical processes in the environment of Peito Hot Spring Area (Taiwan)

Abstract: Relationships between aquatic parameters and nuclide activities of uranium/thorium-series as well as radiochemical processes occurred in Peito Hot Spring Area were investigated in this research. Artificial mixing of tap water with channeled spring water were found causing temperature decrease, lowering Ra2+ concentration and inhibiting hokutolite crystallization. A novel mechanism was derived from this work to interpret the vanishment of hokutolite, which could also be applied in studying radiochemistry, migration of the radionuclides as well as the recovery and conservation of hokutolite. [Copyright &y& Elsevier]