Biogenic non-crystalline U(IV) revealed as major component in uranium ore deposits
Abstract
Historically, it is believed that crystalline uraninite, produced via the abiotic reduction of hexavalent uranium (U(VI)) is the dominant reduced U species formed in low-temperature uranium roll-front ore deposits. Here we show that non-crystalline U(IV) generated through biologically mediated U(VI) reduction is the predominant U(IV) species in an undisturbed U roll-front ore deposit in Wyoming, USA. Characterization of U species revealed that the majority (~58-89%) of U is bound as U(IV) to C-containing organic functional groups or inorganic carbonate, while uraninite and U(VI) represent only minor components. The uranium deposit exhibited mostly 238U-enriched isotope signatures, consistent with largely biotic reduction of U(VI) to U(IV). This finding implies that biogenic processes are more important to uranium ore genesis than previously understood. The predominance of a relatively labile form of U(IV) also provides an opportunity for a more economical and environmentally benign mining process, as well as the design of more effective post-mining restoration strategies and human health-risk assessment.
- Authors:
-
- Colorado State Univ., Fort Collins, CO (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- U.S. Geological Survey, Boulder, CO (United States)
- EXAFS Analysis, Bolingbrook, IL (United States)
- Leibniz Univ. Hannover, Hannover (Germany)
- Ecole Polytechnique Federale de Lausanne, Lausanne (Switzerland)
- Colorado State Univ., Fort Collins, CO (United States)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1379874
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 8; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 58 GEOSCIENCES; Element cycles; Geochemistry; Microbial ecology; Nuclear waste
Citation Formats
Bhattacharyya, Amrita, Campbell, Kate M., Kelly, Shelly D., Roebbert, Yvonne, Weyer, Stefan, Bernier-Latmani, Rizlan, and Borch, Thomas. Biogenic non-crystalline U(IV) revealed as major component in uranium ore deposits. United States: N. p., 2017.
Web. doi:10.1038/ncomms15538.
Bhattacharyya, Amrita, Campbell, Kate M., Kelly, Shelly D., Roebbert, Yvonne, Weyer, Stefan, Bernier-Latmani, Rizlan, & Borch, Thomas. Biogenic non-crystalline U(IV) revealed as major component in uranium ore deposits. United States. https://doi.org/10.1038/ncomms15538
Bhattacharyya, Amrita, Campbell, Kate M., Kelly, Shelly D., Roebbert, Yvonne, Weyer, Stefan, Bernier-Latmani, Rizlan, and Borch, Thomas. Thu .
"Biogenic non-crystalline U(IV) revealed as major component in uranium ore deposits". United States. https://doi.org/10.1038/ncomms15538. https://www.osti.gov/servlets/purl/1379874.
@article{osti_1379874,
title = {Biogenic non-crystalline U(IV) revealed as major component in uranium ore deposits},
author = {Bhattacharyya, Amrita and Campbell, Kate M. and Kelly, Shelly D. and Roebbert, Yvonne and Weyer, Stefan and Bernier-Latmani, Rizlan and Borch, Thomas},
abstractNote = {Historically, it is believed that crystalline uraninite, produced via the abiotic reduction of hexavalent uranium (U(VI)) is the dominant reduced U species formed in low-temperature uranium roll-front ore deposits. Here we show that non-crystalline U(IV) generated through biologically mediated U(VI) reduction is the predominant U(IV) species in an undisturbed U roll-front ore deposit in Wyoming, USA. Characterization of U species revealed that the majority (~58-89%) of U is bound as U(IV) to C-containing organic functional groups or inorganic carbonate, while uraninite and U(VI) represent only minor components. The uranium deposit exhibited mostly 238U-enriched isotope signatures, consistent with largely biotic reduction of U(VI) to U(IV). This finding implies that biogenic processes are more important to uranium ore genesis than previously understood. The predominance of a relatively labile form of U(IV) also provides an opportunity for a more economical and environmentally benign mining process, as well as the design of more effective post-mining restoration strategies and human health-risk assessment.},
doi = {10.1038/ncomms15538},
journal = {Nature Communications},
number = ,
volume = 8,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}
}
Web of Science
Works referenced in this record:
Extracellular reduction of uranium via Geobacter conductive pili as a protective cellular mechanism
journal, September 2011
- Cologgi, D. L.; Lampa-Pastirk, S.; Speers, A. M.
- Proceedings of the National Academy of Sciences, Vol. 108, Issue 37, p. 15248-15252
ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT
journal, June 2005
- Ravel, B.; Newville, M.
- Journal of Synchrotron Radiation, Vol. 12, Issue 4
Quantitative Separation of Monomeric U(IV) from UO 2 in Products of U(VI) Reduction
journal, May 2012
- Alessi, Daniel S.; Uster, Benjamin; Veeramani, Harish
- Environmental Science & Technology, Vol. 46, Issue 11
Low-temperature isotopic fractionation of uranium
journal, December 2007
- Stirling, Claudine H.; Andersen, Morten B.; Potter, Emma-Kate
- Earth and Planetary Science Letters, Vol. 264, Issue 1-2
Aqueous uptake of uranium onto pyrite surfaces; reactivity of fresh versus weathered material
journal, November 2007
- Scott, T. B.; Riba Tort, O.; Allen, G. C.
- Geochimica et Cosmochimica Acta, Vol. 71, Issue 21
Fractionation studies of trace elements in contaminated soils and sediments: a review of sequential extraction procedures
journal, June 2002
- Gleyzes, Christine; Tellier, Sylvaine; Astruc, Michel
- TrAC Trends in Analytical Chemistry, Vol. 21, Issue 6-7
Uranium isotopic compositions of the crust and ocean: Age corrections, U budget and global extent of modern anoxia
journal, October 2015
- Tissot, François L. H.; Dauphas, Nicolas
- Geochimica et Cosmochimica Acta, Vol. 167
The UWXAFS analysis package: philosophy and details
journal, March 1995
- Stern, E. A.; Newville, M.; Ravel, B.
- Physica B: Condensed Matter, Vol. 208-209
Three examples illustrating the analysis of organic matter associated with uranium ores
journal, January 1990
- Landais, Patrick; Dubessy, Jean; Poty, Bernard
- Organic Geochemistry, Vol. 16, Issue 1-3
Spectroscopic Evidence of Uranium Immobilization in Acidic Wetlands by Natural Organic Matter and Plant Roots
journal, February 2015
- Li, Dien; Kaplan, Daniel I.; Chang, Hyun-Shik
- Environmental Science & Technology, Vol. 49, Issue 5
U(VI) Reduction to Mononuclear U(IV) by Desulfitobacterium Species
journal, June 2010
- Fletcher, Kelly E.; Boyanov, Maxim I.; Thomas, Sara H.
- Environmental Science & Technology, Vol. 44, Issue 12
Spectroscopic Evidence of Uranium Immobilization in Acidic Wetlands by Natural Organic Matter and Plant Roots
journal, February 2015
- Li, Dien; Kaplan, Daniel I.; Chang, Hyun-Shik
- Environmental Science & Technology, Vol. 49, Issue 5
Non-uraninite Products of Microbial U(VI) Reduction
journal, December 2010
- Bernier-Latmani, Rizlan; Veeramani, Harish; Vecchia, Elena Dalla
- Environmental Science & Technology, Vol. 44, Issue 24
Uranium isotopic compositions of the crust and ocean: Age corrections, U budget and global extent of modern anoxia
journal, October 2015
- Tissot, François L. H.; Dauphas, Nicolas
- Geochimica et Cosmochimica Acta, Vol. 167
Iron disulfide minerals and the genesis of roll-type uranium deposits
journal, February 1983
- Reynolds, Richard L.; Goldhaber, Martin B.
- Economic Geology, Vol. 78, Issue 1
Microbial reduction of uranium
journal, April 1991
- Lovley, Derek R.; Phillips, Elizabeth J. P.; Gorby, Yuri A.
- Nature, Vol. 350, Issue 6317
Isotopic Evidence for Reductive Immobilization of Uranium Across a Roll-Front Mineral Deposit
journal, June 2016
- Brown, Shaun T.; Basu, Anirban; Christensen, John N.
- Environmental Science & Technology, Vol. 50, Issue 12
Reduction of uranium by cytochrome c3 of Desulfovibrio vulgaris.
journal, January 1993
- Lovley, D. R.; Widman, P. K.; Woodward, J. C.
- Applied and Environmental Microbiology, Vol. 59, Issue 11
Uranium Transformations in Static Microcosms
journal, January 2010
- Kelly, Shelly D.; Wu, Wei-Min; Yang, Fan
- Environmental Science & Technology, Vol. 44, Issue 1
Hydrogeochemical evolution and C isotope study of groundwaters from “Mina Fe” U deposit (Salamanca, Spain): implications for processes in radwaste disposal
journal, March 2005
- Villar, L. Pérez del; Garralón, A.; Delgado, A.
- Applied Geochemistry, Vol. 20, Issue 3
Long-term solid-phase fate of co-precipitated U(VI)-Fe(III) following biological iron reduction by Thermoanaerobacter
journal, September 2012
- Madden, A. S.; Swindle, A. L.; Beazley, M. J.
- American Mineralogist, Vol. 97, Issue 10
Biogenic and petroleum-related ore-forming processes in Dongsheng uranium deposit, NW China
journal, September 2007
- Cai, Chunfang; Li, Hongtao; Qin, Mingkuan
- Ore Geology Reviews, Vol. 32, Issue 1-2
Uranium Uptake from Aqueous Solution by Interaction with Goethite, Lepidocrocite, Muscovite, and Mackinawite: An X-ray Absorption Spectroscopy Study
journal, March 2000
- Moyes, Lesley N.; Parkman, Richard H.; Charnock, John M.
- Environmental Science & Technology, Vol. 34, Issue 6
SIXPack a Graphical User Interface for XAS Analysis Using IFEFFIT
journal, January 2005
- Webb, S. M.
- Physica Scripta
An ab initio molecular orbital study of the nuclear volume effects in uranium isotope fractionations
journal, October 2008
- Abe, Minori; Suzuki, Tatsuya; Fujii, Yasuhiko
- The Journal of Chemical Physics, Vol. 129, Issue 16
U(VI) Reduction to Mononuclear U(IV) by Desulfitobacterium Species
journal, June 2010
- Fletcher, Kelly E.; Boyanov, Maxim I.; Thomas, Sara H.
- Environmental Science & Technology, Vol. 44, Issue 12
Non-uraninite Products of Microbial U(VI) Reduction
journal, December 2010
- Bernier-Latmani, Rizlan; Veeramani, Harish; Vecchia, Elena Dalla
- Environmental Science & Technology, Vol. 44, Issue 24
Three examples illustrating the analysis of organic matter associated with uranium ores
journal, January 1990
- Landais, Patrick; Dubessy, Jean; Poty, Bernard
- Organic Geochemistry, Vol. 16, Issue 1-3
Kinetics of Uranium(VI) Reduction by Hydrogen Sulfide in Anoxic Aqueous Systems
journal, August 2006
- Hua, Bin; Xu, Huifang; Terry, Jeff
- Environmental Science & Technology, Vol. 40, Issue 15, p. 4666-4671
Persistent U(IV) and U(VI) following in-situ recovery (ISR) mining of a sandstone uranium deposit, Wyoming, USA
journal, December 2015
- Gallegos, T. J.; Campbell, K. M.; Zielinski, R. A.
- Applied Geochemistry, Vol. 63
238 U/ 235 U isotope ratios of crustal material, rivers and products of hydrothermal alteration: new insights on the oceanic U isotope mass balance
journal, February 2015
- Noordmann, Janine; Weyer, Stefan; Georg, R. Bastian
- Isotopes in Environmental and Health Studies, Vol. 52, Issue 1-2
Isotopic Evidence for Reductive Immobilization of Uranium Across a Roll-Front Mineral Deposit
journal, June 2016
- Brown, Shaun T.; Basu, Anirban; Christensen, John N.
- Environmental Science & Technology, Vol. 50, Issue 12
238U/235U isotope ratios of crustal material, rivers and products of hydrothermal alteration: new insights on the oceanic U isotope mass balance
text, January 2015
- Noordmann, Janine; Weyer, Stefan; Georg, R. Bastian
- Taylor & Francis
Uranium Reduction
journal, October 2006
- Wall, Judy D.; Krumholz, Lee R.
- Annual Review of Microbiology, Vol. 60, Issue 1
Uranium mobility in organic matter-rich sediments: A review of geological and geochemical processes
journal, August 2016
- Cumberland, Susan A.; Douglas, Grant; Grice, Kliti
- Earth-Science Reviews, Vol. 159
Sequential extraction procedure for the speciation of particulate trace metals
journal, June 1979
- Tessier, A.; Campbell, P. G. C.; Bisson, M.
- Analytical Chemistry, Vol. 51, Issue 7
Relative Reactivity of Biogenic and Chemogenic Uraninite and Biogenic Noncrystalline U(IV)
journal, August 2013
- Cerrato, José M.; Ashner, Matthew N.; Alessi, Daniel S.
- Environmental Science & Technology, Vol. 47, Issue 17
Quantitative Separation of Monomeric U(IV) from UO 2 in Products of U(VI) Reduction
journal, May 2012
- Alessi, Daniel S.; Uster, Benjamin; Veeramani, Harish
- Environmental Science & Technology, Vol. 46, Issue 11
Mechanism of Uranium Reduction and Immobilization in Desulfovibrio vulgaris Biofilms
journal, August 2015
- Stylo, Malgorzata; Neubert, Nadja; Roebbert, Yvonne
- Environmental Science & Technology, Vol. 49, Issue 17
Abiotic Reductive Immobilization of U(VI) by Biogenic Mackinawite
journal, February 2013
- Veeramani, Harish; Scheinost, Andreas C.; Monsegue, Niven
- Environmental Science & Technology, Vol. 47, Issue 5
Uranium Isotope Fractionation
journal, January 2017
- Andersen, Morten B.; Stirling, Claudine H.; Weyer, Stefan
- Reviews in Mineralogy and Geochemistry, Vol. 82, Issue 1
Structure of Biogenic Uraninite Produced by Shewanella oneidensis Strain MR-1
journal, November 2008
- Schofield, Eleanor J.; Veeramani, Harish; Sharp, Jonathan O.
- Environmental Science & Technology, Vol. 42, Issue 21
Structure of Biogenic Uraninite Produced by Shewanella oneidensis Strain MR-1
journal, November 2008
- Schofield, Eleanor J.; Veeramani, Harish; Sharp, Jonathan O.
- Environmental Science & Technology, Vol. 42, Issue 21
Enhanced Uranium Immobilization and Reduction by Geobacter sulfurreducens Biofilms
journal, August 2014
- Cologgi, Dena L.; Speers, Allison M.; Bullard, Blair A.
- Applied and Environmental Microbiology, Vol. 80, Issue 21
The SILVA ribosomal RNA gene database project: improved data processing and web-based tools
journal, November 2012
- Quast, Christian; Pruesse, Elmar; Yilmaz, Pelin
- Nucleic Acids Research, Vol. 41, Issue D1
Abiotic Reductive Immobilization of U(VI) by Biogenic Mackinawite
journal, February 2013
- Veeramani, Harish; Scheinost, Andreas C.; Monsegue, Niven
- Environmental Science & Technology, Vol. 47, Issue 5
QIIME allows analysis of high-throughput community sequencing data
journal, April 2010
- Caporaso, J. Gregory; Kuczynski, Justin; Stombaugh, Jesse
- Nature Methods, Vol. 7, Issue 5
Natural fractionation of 238U/235U
journal, January 2008
- Weyer, S.; Anbar, A. D.; Gerdes, A.
- Geochimica et Cosmochimica Acta, Vol. 72, Issue 2
Interaction between aqueous uranium (VI) and sulfide minerals: Spectroscopic evidence for sorption and reduction
journal, July 1994
- Wersin, Paul; Hochella, Michael F.; Persson, Per
- Geochimica et Cosmochimica Acta, Vol. 58, Issue 13
The role of anaerobic respiration in the immobilization of uranium through biomineralization of phosphate minerals
journal, April 2013
- Salome, Kathleen R.; Green, Stefan J.; Beazley, Melanie J.
- Geochimica et Cosmochimica Acta, Vol. 106
Relationship between the hydrogeochemical environment and sandstone-type uranium mineralization in the Ili basin, China
journal, January 2011
- Yue, Shujuan; Wang, Guangcai
- Applied Geochemistry, Vol. 26, Issue 1
The SILVA ribosomal RNA gene database project: improved data processing and web-based tools
journal, November 2012
- Quast, Christian; Pruesse, Elmar; Yilmaz, Pelin
- Nucleic Acids Research, Vol. 41, Issue D1
Multiple mechanisms of uranium immobilization by Cellulomonas sp. strain ES6
journal, October 2010
- Sivaswamy, Vaideeswaran; Boyanov, Maxim I.; Peyton, Brent M.
- Biotechnology and Bioengineering, Vol. 108, Issue 2
Kinetics of Uranium(VI) Reduction by Hydrogen Sulfide in Anoxic Aqueous Systems
journal, August 2006
- Hua, Bin; Xu, Huifang; Terry, Jeff
- Environmental Science & Technology, Vol. 40, Issue 15, p. 4666-4671
Reduction of Uranium(VI) to Uranium(IV) by Clostridia
journal, May 2008
- Gao, W.; Francis, A. J.
- Applied and Environmental Microbiology, Vol. 74, Issue 14
The effect of pH and natural microbial phosphatase activity on the speciation of uranium in subsurface soils
journal, October 2011
- Beazley, Melanie J.; Martinez, Robert J.; Webb, Samuel M.
- Geochimica et Cosmochimica Acta, Vol. 75, Issue 19
Natural variations in uranium isotope ratios of uranium ore concentrates: Understanding the 238U/235U fractionation mechanism
journal, March 2010
- Brennecka, Gregory A.; Borg, Lars E.; Hutcheon, Ian D.
- Earth and Planetary Science Letters, Vol. 291, Issue 1-4
Characterization of cores from an in-situ recovery mined uranium deposit in Wyoming: Implications for post-mining restoration
journal, December 2014
- WoldeGabriel, G.; Boukhalfa, H.; Ware, S. D.
- Chemical Geology, Vol. 390
Multiple mechanisms of uranium immobilization by Cellulomonas sp. strain ES6
journal, October 2010
- Sivaswamy, Vaideeswaran; Boyanov, Maxim I.; Peyton, Brent M.
- Biotechnology and Bioengineering, Vol. 108, Issue 2
Sandstone hosted uranium deposits of the Great Divide Basin, Wyoming, USA
journal, June 2012
- Abzalov, M. Z.; Paulson, O.
- Applied Earth Science, Vol. 121, Issue 2
Relative Reactivity of Biogenic and Chemogenic Uraninite and Biogenic Noncrystalline U(IV)
journal, August 2013
- Cerrato, José M.; Ashner, Matthew N.; Alessi, Daniel S.
- Environmental Science & Technology, Vol. 47, Issue 17
Mechanism of Uranium Reduction and Immobilization in Desulfovibrio vulgaris Biofilms
journal, August 2015
- Stylo, Malgorzata; Neubert, Nadja; Roebbert, Yvonne
- Environmental Science & Technology, Vol. 49, Issue 17
Age of uranium mineralization at the Highland Mine, Powder River basin, Wyoming, as indicated by U-Pb isotope analyses
journal, May 1983
- Santos, Elmer S.; Ludwig, Kenneth R.
- Economic Geology, Vol. 78, Issue 3
Reduction of uranium by Desulfovibrio desulfuricans.
journal, January 1992
- Lovley, D. R.; Phillips, E. J.
- Applied and Environmental Microbiology, Vol. 58, Issue 3
Fractionation of 238U/235U by reduction during low temperature uranium mineralisation processes
journal, February 2014
- Murphy, Melissa J.; Stirling, Claudine H.; Kaltenbach, Angela
- Earth and Planetary Science Letters, Vol. 388
QIIME allows analysis of high-throughput community sequencing data
journal, April 2010
- Caporaso, J. Gregory; Kuczynski, Justin; Stombaugh, Jesse
- Nature Methods, Vol. 7, Issue 5
Uranium Isotope Fractionation during Adsorption, (Co)precipitation, and Biotic Reduction
journal, November 2016
- Dang, Duc Huy; Novotnik, Breda; Wang, Wei
- Environmental Science & Technology, Vol. 50, Issue 23
Uranium isotopic fractionation factors during U(VI) reduction by bacterial isolates
journal, July 2014
- Basu, Anirban; Sanford, Robert A.; Johnson, Thomas M.
- Geochimica et Cosmochimica Acta, Vol. 136
Uranium isotopes fingerprint biotic reduction
journal, April 2015
- Stylo, Malgorzata; Neubert, Nadja; Wang, Yuheng
- Proceedings of the National Academy of Sciences, Vol. 112, Issue 18
Coexisting coffinite and uraninite in some sandstone-host uranium ores of Wyoming
journal, April 1980
- Ludwig, K. R.; Grauch, R. I.
- Economic Geology, Vol. 75, Issue 2
Uranium isotopes fingerprint biotic reduction
journal, April 2015
- Stylo, Malgorzata; Neubert, Nadja; Wang, Yuheng
- Proceedings of the National Academy of Sciences, Vol. 112, Issue 18
Unstable sulfur compounds and the origin of roll-type uranium deposits
journal, April 1969
- Granger, H. C.; Warren, C. G.
- Economic Geology, Vol. 64, Issue 2
Hydrothermal alteration of organic matter in uranium ores, Elliot Lake, Canada: Implications for selected organic-rich deposits
journal, July 1993
- Mossman, D. J.; Nagy, Bartholomew; Davis, D. W.
- Geochimica et Cosmochimica Acta, Vol. 57, Issue 14
Microbial reduction of uranium
journal, April 1991
- Lovley, Derek R.; Phillips, Elizabeth J. P.; Gorby, Yuri A.
- Nature, Vol. 350, Issue 6317
Uranium mobility in organic matter-rich sediments: A review of geological and geochemical processes
journal, August 2016
- Cumberland, Susan A.; Douglas, Grant; Grice, Kliti
- Earth-Science Reviews, Vol. 159
Isotope fractionation during oxidation of tetravalent uranium by dissolved oxygen
journal, February 2015
- Wang, Xiangli; Johnson, Thomas M.; Lundstrom, Craig C.
- Geochimica et Cosmochimica Acta, Vol. 150
Variations in 238U/235U in uranium ore deposits: Isotopic signatures of the U reduction process?
journal, July 2009
- Bopp, Charles John; Lundstrom, Craig C.; Johnson, Thomas M.
- Geology, Vol. 37, Issue 7
New average values for the n(238U)/n(235U) isotope ratios of natural uranium standards
journal, July 2010
- Richter, S.; Eykens, R.; Kühn, H.
- International Journal of Mass Spectrometry, Vol. 295, Issue 1-2
An ab initio molecular orbital study of the nuclear volume effects in uranium isotope fractionations
journal, October 2008
- Abe, Minori; Suzuki, Tatsuya; Fujii, Yasuhiko
- The Journal of Chemical Physics, Vol. 129, Issue 16
Characterization of cores from an in-situ recovery mined uranium deposit in Wyoming: Implications for post-mining restoration
journal, December 2014
- WoldeGabriel, G.; Boukhalfa, H.; Ware, S. D.
- Chemical Geology, Vol. 390
Uranium redox transition pathways in acetate-amended sediments
journal, March 2013
- Bargar, J. R.; Williams, K. H.; Campbell, K. M.
- Proceedings of the National Academy of Sciences, Vol. 110, Issue 12
Hydrouranium anomalies as an effective tool in exploration of concealed unconformity related U-deposit in Srisailam sub-basin, Andhra Pradesh — Case study from Chitrial area
journal, November 2011
- Verma, M. B.; Dandele, P. S.; Nagendra Babu, G.
- Journal of the Geological Society of India, Vol. 78, Issue 5
Works referencing / citing this record:
A New Frontier for Palaeobiology: Earth's Vast Deep Biosphere
journal, June 2019
- McMahon, Sean; Ivarsson, Magnus
- BioEssays, Vol. 41, Issue 8
The Role of Organic Matter on Uranium Precipitation in Zoovch Ovoo, Mongolia
journal, May 2019
- Rallakis, Dimitrios; Michels, Raymond; Brouand, Marc
- Minerals, Vol. 9, Issue 5