A multi-technique study of altered granitic rock from the Krunkelbach Valley uranium deposit, Southern Germany.

ABSTRACT: Herein, a multi-technique study was performed to reveal the elemental speciation and microphase composition in altered granitic rock collected from the Krunkelbach Valley uranium (U) deposit area near an abandoned U mine, Black Forest, Southern Germany. The former Krunkelbach U mine with 1-2 km surrounding area represents a unique natural analogue site with the rich accumulation of secondary U minerals suitable for radionuclide migration studies from a spent nuclear fuel (SNF) repository. Based on a micro-technique analysis using several synchrotron-based techniques such as X-ray fluorescence analysis, X-ray absorption spectroscopy, powder X-ray diffraction and laboratory-based scanning electron microscopy and Raman spectroscopy, the complex mineral assemblage was identified. While on the

SUBMITTER: Pidchenko I 

PROVIDER: S-EPMC9055283 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature