Large iron isotope fractionation at the oxic-anoxic boundary in Lake Nyos

Earth and Planetary Science Letters

Volumn 285, Issue 1-2, 2009, Pages 52-60

  Teutsch, Nadya ^a,b   Schmid, Martin ^a   Müller, Beat ^a   Halliday, Alex N ^b,c   Bürgmann, Helmut ^a   Wehrli, Bernhard ^a,b  

^a SWISS FEDERAL INSTITUTE OF AQUATIC SCIENCE AND TECHNOLOGY   (Switzerland)

^b ETH ZURICH   (Switzerland)

^c Physical and Life Sciences Division   (United Kingdom)

Author keywords

iron isotopes; Lake Nyos; reaction transport model

Indexed keywords

CAMEROON; CONCENTRATION PROFILES; DEPTH PROFILE; DISSIMILATORY FE REDUCTIONS; GEOCHEMICAL PROCESS; IRON CONCENTRATIONS; IRON ISOTOPES; ISOTOPIC FRACTIONATIONS; ISOTOPIC SIGNATURES; ISOTOPIC VARIATIONS; POSITIVE VALUE; REACTION-TRANSPORT MODEL; REDOX CYCLES; SETTLING FLUXES; TRANSPORT MODELING; VERTICAL MIXING; VOLCANIC LAKES;

DISSOLUTION; INFILTRATION; IRON COMPOUNDS; ISOTOPES;

LAKES;

ANOXIC CONDITIONS; CONCENTRATION (COMPOSITION); DEGASSING; IRON; ISOTOPIC COMPOSITION; ISOTOPIC FRACTIONATION; LAKE WATER; NUMERICAL MODEL; OXIC CONDITIONS; PARTICLE SETTLING; REACTIVE TRANSPORT; VERTICAL MIXING;

AFRICA; CAMEROON; LAKE NYOS; SUB-SAHARAN AFRICA; WEST AFRICA;

EID: 67650627713     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.epsl.2009.05.044     Document Type: Article

References (59)

1. Anbar A.D. Iron stable isotopes: beyond biosignatures. Earth Planet. Sci. Lett. 217 (2004) 223-236
2. Anbar A.D., Roe J.E., Barling J., and Nealson K.H. Nonbiological fractionation of iron isotopes. Science 288 (2000) 126-128
3. 2+: implications for iron stable isotope geochemistry. Geochim. Cosmochim. Acta 69 (2005) 825-837
4. Archer C., and Vance D. Coupled Fe and S isotope evidence for Archean microbial Fe(III) and sulfate reduction. Geology 34 (2006) 153-156
5. Beard B.L., Johnson C.M., Cox L., Sun H., Nealson K.H., and Aguilar C. Iron isotope biosignatures. Nature 285 (1999) 1889-1892
6. Beard B.L., Johnson C.M., Skulan J.L., Nealson K.H., Cox L., and Sun H. Application of Fe isotopes to tracing the geochemical and biological cycling of Fe. Chem. Geol. 195 (2003) 87-117
7. Bergquist B.A., and Boyle E.A. Iron isotopes in the Amazon River system: weathering and transport signatures. Earth Planet. Sci. Lett. 248 (2006) 54-68
8. Bernard A., and Symonds R.B. The significance of siderite in the sediments from Lake Nyos, Cameroon. J. Volcano. Geotherm. Res. 39 (1989) 187-194
9. Bullen T.D., White A.F., Childs C.W., Vivit D.V., and Schulz M.S. Demonstration of significant abiotic iron isotope fractionation in nature. Geology 29 (2001) 699-702
10. Cornell R.M., and Schwertmann U. The Iron Oxides: Structure, Properties, Reactions, Occurrences and Uses. second ed. (2003), Wiley-VCH, Weinheim, Germany
11. Crosby H.A., Johnson C.M., Roden E.E., and Beard B.L. Coupled Fe(II)-Fe(III) electron and atom exchange as a mechanism for Fe isotope fractionation during dissimilatory iron oxide reduction. Environ. Sci. Technol. 39 (2005) 6698-6704
12. Crosby H.A., Roden E.E., Johnson C.M., and Beard B.L. The mechanisms of iron isotope fractionation produced during dissimilatory Fe(III) reduction by Shewanella putrefaciens and Geobacter sulfurreducens. Geobiology 5 (2007) 169-189
13. Dauphas N., and Rouxel O. Mass spectrometry and natural variations of iron isotopes. Mass Spectrom. Rev. 25 (2006) 515-550
14. Davison W. Iron and manganese in lakes. Earth-Sci. Rev. 34 (1993) 119-163
15. Emmanuel S., Erel Y., Matthews A., and Teutsch N. A preliminary mixing model for Fe isotopes in soils. Chem. Geol. 222 (2005) 23-34
16. Emmenegger L., King D.W., Sigg L., and Sulzberger B. Oxidation kinetics of Fe(II) in a eutrophic Swiss lake. Environ. Sci. Technol. 32 (1998) 2990-2996
17. Evans W.C., Kling G.W., Tuttle M.L., Tanyileke G., and White L.D. Gas buildup in Lake Nyos, Cameroon - the recharge process and its consequences. Appl. Geochem. 8 (1993) 207-221
18. Fehr M.A., Andersson P.S., Hålenius U., and Mörth C.-M. Iron isotope variations in Holocene sediments of the Gotland Deep, Baltic Sea. Geochim. Cosmochim. Acta 72 (2008) 807-826
19. Giggenbach W.F. Water and gas chemistry of Lake Nyos and its bearing on the eruptive process. J. Volcanol. Geotherm. Res. 42 (1990) 337-362
20. Goudsmit G.-H., Burchard H., Peeters F., and Wüest A. Application of k-ε turbulence models to enclosed basins - the role of internal seiches. J. Geophys. Res. 107 (2002) 3230 10.1029/2001JC000954
21. Halbwachs M., Sabroux J.-C., Grangeon J., Kayser G., Touchon-Danguy J.-C., Felix A., Béard J.-C., Villevieille A., Vitter G., Richon P., Wüest A., and Hell J. Degassing the "Killer Lakes" Nyos and Monoun, Cameroon. Eos Trans. AGU 85 (2004) 281-285
22. Ingri J., Malinovsky D., Rodushkin I., Baxter D.C., Widerlund A., Andersson P., Gustafsson O., Forsling W., and Ohlander B. Iron isotope fractionation in river colloidal matter. Earth Planet. Sci. Lett. 245 (2006) 792-798
23. Jeon B.H., Dempsey B.A., and Burgos W.D. Kinetics and mechanisms for reactions of Fe(II) with iron(III)oxides. Environ. Sci. Technol. 37 (2003) 3309-3315
24. Johnson C.M., Beard B.L., and Albarede F. Geochemistry of Non-Traditional Stable Isotopes vol. 55 (2004), Mineralogical Society of America
25. Johnson C.M., Beard B.L., Roden E.E., Newman D.K., and Nealson K.H. In: Johnson C.M., Beard B.L., and Albarède F. (Eds). Isotopic Constraints on Biogeochemical Cycling of Fe. Geochemistry of Non-Traditional Stable Isotopes vol. 55 (2004) 359-408
26. Johnson C.M., Roden E.E., Welch S.A., and Beard B.L. Experimental constraints on Fe isotope fractionation during magnetite and Fe carbonate formation coupled to dissimilatory hydrous ferric oxide reduction. Geochim. Cosmochim. Acta 69 (2005) 963-993
27. Johnson C.M., Beard B.L., Klein C., Beukes N.J., and Roden E.E. Iron isotopes constrain biologic and abiologic processes in banded iron formation genesis. Geochim. Cosmochim. Acta 72 (2008) 151-169
28. Jones S.E., Jago C.F., Bale A.J., Chapman D., Howland R.J.M., and Jackson J. Aggregation and resuspension of suspended particulate matter at a seasonally stratified site in the southern North Sea: physical and biological controls. Cont. Shelf Res. 18 (1998) 1283-1309
29. Kling G.W., Clark M.A., Compton H.R., Devine J.D., Evans W.C., Humphrey A.M., Koenigsberg E.J., Lockwood J.P., Tuttle M.L., and Wagner G.N. The 1986 Lake Nyos gas disaster in Cameroon, West-Africa. Science 236 (1987) 169-175
30. Kling G.W., Evans W.C., Tanyileke G., Kusakabe M., Ohba T., Yoshida Y., and Hell J.V. Degassing Lakes Nyos and Monoun: defusing certain disaster. Proc. Natl. Acad. Sci. U. S. A. 102 (2005) 14185-14190
31. Kusakabe M., Ohsumi T., and Aramaki S. The Lake Nyos gas disaster: chemical and isotopic evidence in waters and dissolved gases from three Cameroonian crater lakes, Nyos, Monoun and Wum. J. Volcanol. Geotherm. Res. 39 (1989) 167-185
32. 2 profiles at Lakes Nyos and Monoun, Cameroon: implications for the degassing strategy and its numerical simulation. J. Volcanol. Geotherm. Res. 97 (2000) 241-260
33. 2 in Lakes Monoun and Nyos, Cameroon, before and during controlled degassing. Geochem. J. 42 (2008) 93-118
34. Lee D.-C., 1994. A chemical, isotopic and geo-chronological study of the Cameroon Line, West Africa. Ph.D. thesis, The University of Michigan.
35. Lockwood J.P., and Rubin M. Origin and age of the Lake Nyos maar, Cameroon. J. Volcanol. Geotherm. Res. 39 (1989) 117-124
36. Malinovsky D.N., Rodyushkin I.V., Shcherbakova E.P., Ponter C., Ohlander B., and Ingri J. Fractionation of Fe isotopes as a result of redox processes in a basin. Geochem. Int. 43 (2005) 797-803
37. Matthews A., Morgans-Bell H.S., Emmanuel S., Jenkyns H.C., Erel Y., and Halicz L. Controls on iron-isotope fractionation in organic-rich sediments (Kimmeridge Clay, Upper Jurassic, Southern England). Geochim. Cosmochim. Acta 68 (2004) 3107-3123
38. Mikutta C., Wiederhold J.G., Cirpka O.A., Hofstetter T.B., Bourdon B., and Von Gunten U. Iron isotope fractionation and atom exchange during sorption of ferrous iron to mineral surfaces. Geochim. Cosmochim. Acta 73 (2009) 1795-1812
39. 2 flux in Lake Nyos, Cameroon. Limnol. Oceanogr. 38 (1993) 739-752
40. Reichert P. AQUASIM - a tool for simulation and data analysis of aquatic systems. Water Sci. Technol. 30 (1994) 21-30
41. Reichert P. AQUASIM 2.0 - User Manual. ed (1998), EAWAG, Dübendorf
42. Reynolds C.S. The Ecology of Freshwater Phytoplankton. ed (1984), Cambridge University Press, Cambridge
43. Roe J.E., Anbar A.D., and Barling J. Nonbiological fractionation of Fe isotopes: evidence of an equilibrium isotope effect. Chem. Geol. 195 (2003) 69-85
44. Schauble E.A., Rossman G.R., and Taylor H.P.J. Theoretical estimates of equilibrium Fe-isotope fractionations from vibrational spectroscopy. Geochim. Cosmochim. Acta 65 (2001) 2487-2497
45. Schmid M., Lorke A., Wüest A., Halbwachs M., and Tanyileke G. Development and sensitivity analysis of a model for assessing stratification and safety of Lake Nyos during artificial degassing. Ocean Dyn. 53 (2003) 288-301
46. Schmid M., Lorke A., Dinkel C., Tanyileke G., and Wüest A. Double-diffusive convection in Lake Nyos, Cameroon. Deep-Sea Res., Part 1 51 (2004) 1097-1111
47. 2 concentrations, temperature and stratification in Lake Nyos for different degassing scenarios. Geochem. Geophys. Geosyst. 7 (2006) Q06019 10.1029/2005GC001164
48. Severmann S., Johnson C.M., Beard B.L., and McManus J. The effect of early diagenesis on the Fe isotope compositions of porewaters and authigenic minerals in continental margin sediments. Geochim. Cosmochim. Acta 70 (2006) 2006-2022
49. Staubwasser M., von Blanckenburg F., and Schoenberg R. Iron isotopes in the early marine diagenetic iron cycle. Geology 34 (2006) 629-632
50. Stookey L.L. Ferrozine: a new spectrophotometric reagent for iron. Anal. Chem. 42 (1970) 119-781
51. Stumm W., and Morgan J.J. Aquatic Chemistry: Chemical Equilibria and Rates in Natural Waters. 3rd ed. (1996), Wiley, New York
52. Teutsch N., Gunten U.v., Porcelli D., Cirpka O.A., and Halliday A.N. Adsorption as a cause for iron isotope fractionation in reduced groundwater. Geochim. Cosmochim. Acta 69 (2005) 4175-4185
53. Thompson A., Ruiz J., Chadwick O.A., Titus M., and Chorover J. Rayleigh fractionation of iron isotopes during pedogenesis along a climate sequence of Hawaiian basalt. Chem. Geol. 238 (2007) 72-83
54. Welch S.A., Beard B.L., Johnson C.M., and Braterman P.S. Kinetic and equilibrium Fe isotope fractionation between aqueous Fe(II) and Fe(III). Geochim. Cosmochim. Acta 67 (2003) 4231-4250
55. Wiederhold J.G., Kraemer S.M., Teutsch N., Borer P.M., Halliday A.N., and Kretzschmar R. Iron isotope fractionation during proton-promoted, ligand-controlled, and reductive dissolution of goethite. Environ. Sci. Technol. 40 (2006) 3787-3793
56. Wiederhold J.G., Teutsch N., Kraemer S.M., Halliday A.N., and Kretzschmar R. Iron isotope Fractionation during pedogenesis on redoximorphic soils. Soil Sci. Soc. Am. J. 71 (2007) 1840-1850
57. Wiederhold J.G., Teutsch N., Kraemer S.M., Halliday A.N., and Kretzschmar R. Iron isotope fractionation in oxic soils by mineral weathering and podzolization. Geochim. Cosmochim. Acta 71 (2007) 5821-5833
58. Wiesli R.A., Beard B.L., and Johnson C.M. Experimental determination of Fe isotope fractionation between aqueous Fe(II), siderite and "green rust" in abiotic systems. Chem. Geol. 211 (2004) 343-362
59. Yamaguchi K.E., Johnson C.M., Beard B.L., and Ohmoto H. Biogeochemical cycling of iron in the Archean-Paleoproterozoic Earth: constraints from iron isotope variations in sedimentary rocks from the Kaapvaal and Pilbara Cratons. Chem. Geol. 218 (2005) 135-169