. Author manuscript; available in PMC: 2013 Jun 5.

Published in final edited form as: Environ Sci Technol. 2012 May 11;46(11):6150–6157. doi: 10.1021/es204123z

Table 1.

Sample descriptions, abbreviations used in text, and literature sources. Mixture ratio indicates the ratio of the volume of the uraninite-favoring system (Bio1) to the volume of the monomeric U(IV)-favoring system (Bio5) in a sample.

Category	Name	Bio1: Bio5	Description	Sources

Biologically reduced systems	Bio1	100:0	uraninite-favoring condition	Schofield et al., 2008
	Bio2	75:25
	Bio3	50:50	Mixtures of Bio1 and Bio5
	Bio4	25:75
	Bio5	100:0	monomeric U(IV)-favoring condition	Bernier-Latmani et al., 2010

Biogenic Fe minerals	Vivianite	-	Monomeric U(IV) produced by biogenic vivianite	Veeramani et al., 2011
Biogenic Fe minerals	Magnetite	-	Uraninite produced by biogenic magnetite

Sediment	Sediment	-	Reduced U in biostimulated Rifle, CO sediments	Sharp et al., 2011