Peter C. Burns

TL;DR: The geomeffy, bond valences, and polymerization of hexavalent uranium polyhedra from 105 well-refined structures are analyzed in this article, where a series of coordiaation polyhedr4 from square bipyramidal polyhedras with uranyl ions to holosymmehic octahedral geometry are discussed.

TL;DR: In this article, 368 inorganic crystal structures that contain essential U6+ are considered (of which 89 are minerals) and arranged on the basis of the topological details of their structural units, which are formed by the polymerization of polyhedra containing higher-valence cations.

TL;DR: The state of knowledge on the chemical and physical processes following the nuclear reactor accident is reviewed and how these results may inform decision-making during future events are considered, and priorities for research needed to develop future predictive models are discussed.

TL;DR: Despite the production of H2S and the abundance of sulfide oxidizing microbes, preliminary delta 34S data do not uniquely define the microbial metabolic pathways present in the spring system, which suggests that the high extent of CO2 degassing and large open-system solute reservoir in these thermal systems overwhelm biological controls on travertine crystal chemistry.

TL;DR: In this article, a hierarchical structural classification for Utu minerals and inorganic phases, based on the polymerization of coordination polyhedra of higher bond-valence, was developed for UG.