Sentences with phrase «pyrite uranium»
X-ray spectroscopic analyses conducted at the Advanced Photon Source at Argonne National Laboratory confirmed that framboidal pyrite uranium occurred in both oxidized and reduced forms.
https://www.pnnl.gov/ Not exact matches
«Uranium in framboidal pyrite from a naturally bioreduced alluvial sediment.»
«The results were really exciting,» said Qafoku, «because this was the first time that uranium was found to be associated with naturally occurring framboidal pyrites in alluvial sediments.»
Framboidal pyrites may also serve as long - term sources of contaminant uranium under conditions of slow oxidation.
Electron microprobe analysis produced elemental mappings showing that uranium was associated with framboidal pyrite.
Clearly not all pyrites, framboidal or otherwise, contain high uranium, so understanding what controls uranium uptake in pyrite is a crucial next step.