Geochemical environment of the Coniacian-Santonian western tropical Atlantic at Demerara Rise

Palaeogeography, Palaeoclimatology, Palaeoecology

Volumn 273, Issue 3-4, 2009, Pages 286-301

  Marz C ^a   Beckmann, B ^b   Franke, C ^c   Vogt, Christoph ^a   Wagner, T ^d   Kasten, S ^e  

^a UNIVERSITY OF BREMEN   (Germany)

^b UNIVERSITY OF COLOGNE   (Germany)

^c LABORATOIRE DES SCIENCES DU CLIMAT ET DE L ENVIRONNEMENT   (France)

^d NEWCASTLE UNIVERSITY   (United Kingdom)

^e ALFRED WEGENER INSTITUTE FOR POLAR AND MARINE RESEARCH   (Germany)

Author keywords

Enrichment factors; Iron; Oceanic anoxic event; Phosphorus; Redox changes; Sediment source; Trace elements

Indexed keywords

BOTTOM WATER; CONIACIAN; DETRITUS; IRON; MARINE SEDIMENT; NANOFOSSIL; ORGANIC CARBON; PHOSPHORUS; REDOX CONDITIONS; SANTONIAN; SEDIMENTATION; SHALE; TRACE ELEMENT; TROPICAL REGION; TURBIDITE;

ATLANTIC OCEAN; DEMERARA RISE;

CONIACIAN;

EID: 60649098522     PISSN: 00310182     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.palaeo.2008.05.004     Document Type: Article

References (107)

1. Adelson J.M., Helz G.R., and Miller C.V. Reconstructing the rise of recent coastal anoxia: molybdenum in Chesapeake Bay sediments. Geochim. Cosmochim. Acta 65 (2001) 237-252
2. Algeo T.J. Can marine anoxic events draw down the trace-element inventory of seawater?. Geology 32 (2004) 1057-1060
3. Algeo T.J., and Maynard J.B. Trace element behaviour and redox facies in core shales of the Upper Pennsylvanian Kansas-type cyclothems. Chem. Geol. 206 (2004) 289-318
4. Algeo T.J., and Lyons T.W. Mo-total organic carbon covariation in modern anoxic marine environments: implications for analysis of paleoredox and paleohydrographic conditions. Paleoceanography 21 (2006) PA 1016
5. 2. Palaeogeogr. Palaeoclimatol. Palaeoecol. 256 (2007) 130-155
6. Anderson L.D., Delaney M.L., and Faul K.L. Carbon to phosphorus ratios in sediments: implications for nutrient cycling. Glob. Biogeochem. Cycles 15 (2001) 65-79
7. Arndt S., Brumsack H.-J., and Wirtz K. Cretaceous black shales as active bioreactors: a biogeochemical model for the deep biosphere encountered during ODP Leg 207 (Demerara Rise). Geochim. Cosmochim. Acta 70 (2006) 480-425
8. Beckmann B., Flögel S., Hofmann P., Schulz M., and Wagner T. Orbital forcing of Cretaceous river discharge in tropical Africa and ocean response. Nature 437 (2005) 241-244
9. Beckmann B., Wagner T., and Hofmann P. Linking Coniacian-Santonian (OAE3) black shale formation to African climate variability: a reference section from the eastern tropical Atlantic at orbital time scales (ODP Site 959, off Ivory Coast/ Ghana). In: Harris N.B. (Ed). The Deposition of Organic Carbon-Rich Sediments: Models, Mechanisms, and Consequences. SEPM Spec. Publ. vol. 82 (2005) 125-143
10. Beckmann, B., Hofmann, P., März, C., Schouten, S., Sinninghe Damsté, J.S., Wagner, T., in press. Coniacian-Santonian deep ocean anoxia/euxinia inferred from molecular and inorganic markers: Results from the Demerara Rise (ODP Leg 207). Org. Geochem.
11. Berner R.A. Sedimentary pyrite formation: an update. Geochim. Cosmochim. Acta 48 (1984) 605-615
12. Böttcher M.E., Hetzel S., Brumsack H.-J., and Schipper A. Sulfur-iron-carbon geochemistry in sediments of the Demerara Rise. In: Mosher D.C., Erbacher J., and Malone M.J. (Eds). Proc. ODP, Sci. Results vol. 207 (2006) 1-23 10.2973/odp.proc.sr.2007.108.2006
13. Bornemann A., Friedrich O., Beckmann B., Hofmann P., Schouten S., Sinninghe Damsté J.S., Vogel J., Wagner T., and Norris R.D. Isotopic evidence for glaciation during the Cretaceous supergreenhouse. Science 319 (2008) 189-192
14. Breit G.N., and Wanty R.B. Vanadium accumulation in carbonaceous rocks: a review of geochemical controls during deposition and diagenesis. Chem. Geol. 91 (1991) 83-97
15. Bruland K.W., Donat J.R., and Hutchins D.A. Interactive influences of bioactive trace metals on biological production in oceanic waters. Limnol. Oceanogr. 36 (1991) 1555-1577
16. Brumsack H.-J. The trace metal content of recent organic carbon-rich sediments: implications for Cretaceous black shale formation. Palaeogeogr. Palaeoclimatol. Palaeoecol. 232 (2006) 344-361
17. Burdige D.J. The biogeochemistry of manganese and iron reduction in marine sediments. Earth-Sci. Rev. 35 (1993) 249-284
18. Calvert S.E., and Pedersen T.F. Geochemistry of recent oxic and anoxic marine sediments: implications for the geological record. Mar. Geol. 113 (1993) 67-88
19. Chung F.H. Quantitative interpretation of X-ray diffraction patterns, I. Matrix-flushing method of quantitative multicomponent analysis. J. Appl. Crystallogr. 7 (1974) 513-519
20. Dean W.E., Gardner J.V., and Piper D.Z. Inorganic geochemical indicators of glacial-interglacial changes in productivity and anoxia on the California continental margin. Geochim. Cosmochim. Acta 61 (1997) 4507-4518
21. Delaney M.L. Phosphorus accumulation in marine sediments and the oceanic phosphorus cycle. Glob. Biogeochem. Cycles 12 (1998) 563-572
22. Dellwig O., Böttcher M.E., Lipinski M., and Brumsack H.-J. Trace metals in Holocene coastal peats and their relation to pyrite formation (NW Germany). Chem. Geol. 182 (2002) 423-442
23. Dellwig O., Beck M., Lemke A., Lunau M., Kolditz K., Schnetger B., and Brumsack H.-J. Non-conservative behaviour of molybdenum in coastal waters: coupling geochemical, biological, and sedimentological processes. Geochim. Cosmochim. Acta 71 (2007) 2745-2761
24. Erbacher J., Mosher D.C., and Malone M.J. Shipboard scientific party. Proc. ODP In. Reports vol. 207 (2004) 10.2973/odp.proc.ir.207.2004
25. Erbacher J., Friedrich O., Wilson P.A., Birch H., and Mutterlose J. Stable organic carbon isotope stratigraphy across Oceanic Anoxic Event 2 of Demerara Rise, western tropical Atlantic. Geochem. Geophys. Geosyst. 6 (2005) Q06010 10.1029/2004GC000850
26. Feely R.A., Massoth G.J., Baker E.T., Cowen J.P., Lamb M.F., and Krogslund K.A. The effect of hydrothermal processes on midwater phosphorus distributions in the northeast Pacific. Earth Planet. Sci. Lett. 96 (1990) 305-318
27. Filippelli G.M. Carbon and phosphorus cycling in anoxic sediments of the Saanich Inlet, British Columbia. Mar. Geol. 174 (2001) 307-321
28. Flögel S., and Wagner T. Insolation-control on the Late Cretaceous hydrological cycle and tropical African climate - global climate modelling linked to marine climate records. Palaeogeogr. Palaeoclimatol. Palaeoecol. 235 (2006) 288-304
29. Flögel, S., Beckmann, B., Hofmann, P., Bornemann, A., Norris, R.D., Wagner, T., in press. Evolution of tropical watersheds and continental hydrology during the Late Cretaceous greenhouse; marine carbon burial and possible implications for the future. Earth Planet. Sci. Lett.
30. Forster A., Schouten S., Moriya K., Wilson P.A., and Sinninghe Damsté J.S. Tropical warming and intermittent cooling during the Cenomanian/Turonian oceanic anoxic event 2: sea surface temperature records from the equatorial Atlantic. Paleoceanography 22 (2007) PA1219 10.1029/2006PA001349
31. Forster A., Schouten S., Baas M., and Sinnighe Damsté J.S. Mid-Cretaceous (Albian-Santonian) sea surface temperature records of the tropical Atlantic Ocean. Geology 35 (2007) 919-922
32. François R. A study on the regulation of the concentrations of some trace metals (Rb, Sr, Zn, Pb, Cu, V, Cr, Ni, Mn and Mo) in Saanich Inlet sediments, British Columbia, Canada. Mar. Geol. 83 (1988) 285-308
33. Franke C., Frederichs T., and Dekkers M.J. Efficiency of heavy liquid separation to concentrate magnetic particles. Geophys. J. Int. (2007) 10.1111/j.1365- 246X.2007.03489
34. Friedrich O., and Erbacher J. Benthic foraminiferal assemblages from Demerara Rise (ODP Leg 207, western tropical Atlantic): possible evidence for a progressive opening of the Equatorial Atlantic Gateway. Cretac. Res. 27 (2006) 377-397
35. Friedrich O., Erbacher J., and Mutterlose J. Paleoenvironmental changes across the Cenomanian/Turonian boundary event (oceanic anoxic event 2) as indicated by benthic foraminifera from the Demerara Rise (ODP Leg 207). Rev. Micropaleontol. 49 (2006) 121-139
36. Froelich P.N., Klinkhammer G.P., Bender M.L., Luetge N.A., Heath G.R., Cullen D., and Dauphin P. Early oxidation of organic matter in pelagic sediments of the eastern equatorial Atlantic: suboxic diagenesis. Geochim. Cosmochim. Acta 43 (1979) 1075-1090
37. Goldstein J.I., Newbury D.E., Echlin P., Joy D.C., Romig Jr. A.D., Lyman C.E., Fiori C., and Lifshin E. Scanning electron microscopy and X-Ray microanalysis. 2nd edition (1992), Plenum Press, New York 820 pp.
38. Hardas P., and Mutterlose J. Calcareous nannofossil biostratigraphy of the Cenomanian/Turonian boundary interval of Leg 207 at the Demerara Rise. Rev. Micropaleontol. 49 (2006) 165-179
39. Hastings D.W., Emerson S.R., and Mix A.C. Vanadium in foraminiferal calcite as a tracer for changes in the areal extent of reducing sediments. Paleoceanography 11 (1996) 665-678
40. Hay W.W., DeConto R.M., Wold C.N., Wilson K.M., Voigt S., Schulz M., Rossby Wold A., Dullo W.C., Ronov A.B., Balukhovsky A.B., and Söding E. Alternative global Cretaceous paleogeography. In: Barrera E., and Johnson C.C. (Eds). Evolution of the Cretaceous Ocean-climate System. Geol. Soc. Am. Spec. Paper 332 (1999) 1-47
41. Helz G.R., Miller C.V., Charnock J.M., Mosselmans J.F.W., Pattrick R.A.D., Garner C.D., and Vaughan D.J. Mechanism of molybdenum removal from the sea and its concentration in black shales: EXAFS evidence. Geochim. Cosmochim. Acta 60 (1996) 3631-3642
42. Hetzel A., Brumsack H.-J., Schnetger B., and Böttcher M.E. Inorganic geochemical characterization of lithologic units recovered during ODP Leg 207 (Demerara Rise). In: Mosher D.C., Erbacher J., and Malone M.J. (Eds). Proc. ODP, Sci. Results vol. 207 (2006), Ocean Drilling Program, College Station, TX 1-37
43. Hetzel A., Böttcher M.E., Wortmann U.G., and Brumsack H.-J. Paleo- redox conditions during OAE 2 reflected in Demerara Rise sediment geochemistry (ODP Leg 207). Palaeogeogr. Palaeoclimatol. Palaeoecol. 273 (2009) 302-328
44. Huckriede H., and Meischner D. Origin and environment of manganese-rich sediments within black shale basins. Geochim. Cosmochim. Acta 60 (1996) 1399-1413
45. Huerta-Diaz M.G., and Morse J.W. Pyritization of trace metals in anoxic marine sediments. Geochim. Cosmochim. Acta 56 (1992) 2681-2702
46. Ingall E.D., and Jahnke R.A. Influence of water-column anoxia on the elemental fractionation of carbon and phosphorus during sediment diagenesis. Mar. Geol. 139 (1997) 219-229
47. Ingall E.D., Bustin R.M., and Van Cappellen P. Influence of water column anoxia on the burial and preservation of carbon and phosphorus in marine shales. Geochim. Cosmochim. Acta 57 (1993) 303-316
48. Jacobs E., and Emerson S. Trace metal solubility in an anoxic fjord. Earth Planet. Sci. Lett. 60 (1982) 237-252
49. Junium C.K., and Arthur M.A. Nitrogen cycling during the Cretaceous, Cenomanian-Turonian Oceanic Anoxic Event II. Geochem. Geophys. Geosyst. 8 (2007) Q03002 10.1029/2006GC001328
50. Karpoff A.M., Destrigneville C., and Stille P. Clinoptilolite as a new proxy of enhanced biogenic silica productivity in lower Miocene carbonate sediments of the Bahamas platform: isotopic and thermodynamic evidence. Chem. Geol. 245 (2007) 285-304
51. Kastner M. Zeolites. In: Burns R. (Ed). Marine Minerals. Rev. Mineral. vol. 6 (1980), Mineralogical Society of America 111-122
52. Klinkhammer G.P., and Bender M.L. The distribution of manganese in the Pacific Ocean. Earth Planet. Sci. Lett. 46 (1980) 361-384
53. Lewan M.D. Factors controlling the proportionality of vanadium to nickel ratios in crude oils. Geochim. Cosmochim. Acta 48 (1984) 2231-2238
54. Lewan M.D., and Maynard J.B. Factors controlling the enrichment of vanadium and nickel in the bitumen of organic sedimentary rocks. Geochim. Cosmochim. Acta 46 (1982) 2547-2560
55. Lewis B.L., and Landing W.M. The biogeochemistry of Mn and Fe in the Black Sea. Deep-Sea Res. 38 (1991) 773-803
56. Lewis B.L., and Luther G.W. Processes controlling the distribution and cycling of manganese in the oxygen minimum zone of the Arabian Sea. Deep-Sea Res. II 47 (2000) 1541-1561
57. Lovley D.R. Organic matter remineralization with the reduction of ferric iron: a review. Geomicrobiol. J. 5 (1987) 375-399
58. Lunau M., Lemke A., Dellwig O., and Simon M. Physical and biogeochemical controls of microaggregate dynamics in a tidally affected coastal ecosystem. Limnol. Oceanogr. 51 (2006) 847-859
59. März, C., Poulton, S.W., Beckmann, B., Küster, K., Wagner, T., Kasten, S., in press. Redox sensitivity of P cycling during marine black shale formation - dynamics of sulfidic and anoxic, non-sulfidic bottom waters. Geochim. Cosmochim. Acta.
60. Meyers P.A., Bernasconi S.M., and Forster A. Origins and accumulation of organic matter in expanded Albian to Santonian black shale sequences on the Demerara Rise, South American margin. Org. Geochem. 37 (2006) 1816-1830
61. Morford J.L., and Emerson S.E. The geochemistry of redox sensitive trace metals in sediments. Geochim. Cosmochim. Acta 63 (1999) 1735-1750
62. Morford J.L., Emerson S.R., Breckel E.J., and Kim S.H. Diagenesis of oxyanions (V, U, Re, and Mo) in pore waters and sediments from a continental margin. Geochim. Cosmochim. Acta 69 (2005) 5021-5032
63. Morse J.W., and Luther III G.W. Chemical influences on trace metal-sulfide interactions in anoxic sediments. Geochim. Cosmochim. Acta 63 (1999) 3373-3378
64. Morse J.W., Millero F.J., Cornwell J.C., and Rickard D. The chemistry of hydrogen sulphide and iron sulphide systems in natural waters. Earth-Sci. Rev. 24 (1987) 1-42
65. Mosher D.C., Erbacher J., and Malone M.J. Shipboard scientific party. Proc. ODP Sci. Results vol. 207 (2007) 10.2973/odp.proc.sr.207.2007
66. Musavu-Moussavou B., and Danelian T. The radiolarian response to oceanic anoxic event 2 in the southern part of the Northern proto-Atlantic (Demerara Rise, ODP Leg 207). Rev. Micropal. 49 (2006) 141-163
67. Nealson K.H., and Myers C.R. Microbial reduction of manganese and iron: new approaches to carbon cycling. Appl. Environ. Microbiol. 58 (1992) 439-443
68. Nederbragt A.J., Thurow J., and Pearce R. Sediment composition and cyclicity in the Mid-Cretaceous at Demerara Rise, ODP Leg 207. In: Mosher D.C., Erbacher J., Malone M.J., et al. (Eds). Proc. ODP Sci. Results vol. 207 (2007) 1-31 10.2973/odp.proc.sr.207.103.2007
69. Neumann T., Heiser U., Leosson M.A., and Kersten M. Early diagenetic processes during Mn-carbonate formation: evidence from the isotopic composition of authigenic Ca-rhodochrosites of the Baltic Sea. Geochim. Cosmochim. Acta 66 (2002) 867-879
70. Paytan A., and Griffith E.M. Marine barite: recorder of variations in ocean export productivity. Deep-Sea Res. II 54 (2007) 687-705
71. Paytan A., Kastner M., Campbell D., and Thiemens M.H. Seawater sulfur isotope fluctuations in the Cretaceous. Science 304 (2004) 1663-1665
72. Percy, D., Li, X., Taylor, G.T., Astor, Y., Scranton, M.I., in press. Controls on iron, manganese and intermediate oxidation state sulfur compounds in the Cariaco Basin. Mar. Chem.
73. Pletsch T., Erbacher J., Holbourn A.E.L., Kuhnt W., Moullade M., Oboh-Ikuenobede F.E., Söding E., and Wagner T. Cretaceous separation of Africa and South America: the view from the West African margin (ODP Leg 159). J. S. Am. Earth Sci. 14 (2001) 142-174
74. Poulton S.W., and Canfield D.E. Co-diagenesis of iron and phosphorus in hydrothermal sediments from the southern East Pacific rise: implications for the evaluation of paleoseawater phosphate concentrations. Geochim. Cosmochim. Acta 70 (2006) 5883-5898
75. Poulton S.W., Krom M.D., and Raiswell R. A revised scheme for the reactivity of iron (oxyhyr)oxide minerals towards dissolved sulfide. Geochim. Cosmochim. Acta 68 (2004) 3703-3715
76. Redfield A.C. The biological control of chemical factors in the environment. Am. Sci. 64 (1958) 205-221
77. Reitz A., Wille M., Nägler T., and De Lange G.J. Atypical Mo isotope signatures in eastern Mediterranean sediments. Chem. Geol. 245 (2007) 1-8
78. Rosenthal Y., Lam P., Byle E.A., and Thomson J. Authigenic cadmium enrichments in suboxic sediments: precipitation and postdepositional mobility. Earth Planet. Sci. Lett. 132 (1995) 99-111
79. Ruttenberg K.C. Development of a sequential extraction method for different forms of phosphorus in marine sediments. Limnol. Oceanogr. 37 (1992) 1460-1482
80. Schenau S.J., and De Lange G.J. A novel chemical extraction method to quantify fish debris in marine sediments. Limnol. Oceanogr. 45 (2000) 963-971
81. Schenau S.J., Slomp C.P., and De Lange G.J. Phosphogenesis and active phosphorite formation in sediments from the Arabian Sea oxygen minimum zone. Mar. Geol. 169 (2000) 1-20
82. Schlanger S.O., and Jenkyns H.C. Cretaceous oceanic anoxic events: causes and consequences. Geol. Mijnb. 55 (1976) 179-184
83. Scholz F., and Neumann T. Trace element diagenesis in pyrite-rich sediments of the Achterwasser lagoon, SW Baltic Sea. Mar. Chem. 107 (2007) 516-532
84. Schoonen M.A.A. Mechanisms of sedimentary pyrite formation. In: Amend J.P., Edwards K.J., and Lyons T.W. (Eds). Sulfur Biogeochemistry-Past and Present. GSA Spec. Pap. vol. 379 (2004) 117-134
85. Schulz H.D. Quantification of Early Diagenesis: dissolved constituents in pore water and signals in the solid phase. In: Schulz H.D., and Zabel M. (Eds). Marine Geochemistry (2004), Springer 73-124
86. Shimmield G.B., and Price N.B. The behaviour of molybdenum and manganese during early sediment diagenesis offshore Baja California, Mexico. Mar. Chem. 19 (1986) 261-280
87. Sinninghe Damsté J.S., and De Leeuw J.W. Analysis, structure and geochemical significance of organically-bound sulphur in the geosphere: state of the art and future research. Org. Geochem. 16 (1990) 1077-1101
88. Sinninghe Damsté J.S., Kok M.D., Köster J., and Schouten S. Sulfurized carbohydrates: an important sedimentary sink for organic carbon?. Earth Planet. Sci. Lett. 164 (1998) 7-13
89. Slomp C.P., Van der Gaast S.J., and Van Raaphorst W. Phosphorus binding by poorly crystalline iron oxides in North sea sediments. Mar. Chem. 52 (1996) 55-73
90. Stone A.T., and Morgan J.J. Reductive dissolution of metal oxides. In: Stumm W. (Ed). Aquatic Surface Chemistry (1987), Wiley, Chichester 221-254
91. Stumm W., and Sulzberger B. The cycling of iron in natural environments: considerations based on laboratory studies of heterogeneous redox processes. Geochim. Cosmochim. Acta 56 (1992) 3233-3257
92. Tebo B.M. Manganese(II) oxidation in the suboxic zone of the Black Sea. Deep-Sea Res. 38 Suppl. 2 (1991) 883-905
93. Thurow J. Diagenetic history of Cretaceous radiolarians, North Atlantic Ocean (ODP Leg 103 and DSDP Holes 398D and 603B). In: Boillot G., Winterer E.L., et al. (Eds). Proc. ODP Sci. Results vol. 103 (1988) 531-555
94. Torres M.E., Brumsack H.J., Bohrmann G., and Emeis K.C. Barite fronts in continental sediments: a new look at barium remobilization in the zone of sulfate reduction and formation of heavy barites in authigenic fronts. Chem. Geol. 127 (1996) 125-139
95. Tribovillard N., Riboulleau A., Lyons T., and Baudin F. Enhanced trapping of molybdenum by sulfurized marine organic matter of marine origin in Mesozoic limestones and shales. Chem. Geol. 213 (2004) 385-401
96. Tribovillard N., Algeo T.J., Lyons T., and Riboulleau A. Trace metals as paleoredox and paleoproductivity proxies: an update. Chem. Geol. 232 (2006) 12-32
97. Tuit C., Waterbury J., and Ravizza G. Diel variation of molybdenum and iron in marine diazotrophic cyanobacteria. Limnol. Oceanogr. 49 (2004) 978-990
98. Turekian K.K., and Wedepohl K.H. Distribution of the elements in some major units of the Earth's crust. Geol. Soc. Am. Bull. 72 (1961) 175-192
99. Van der Weijden C. Pitfalls of normalization of marine geochemical data using a common divisor. Mar. Geol. 184 (2002) 167-187
100. Vogt C., Lauterjung J., and Fischer R.X. Investigation of the clay fraction (< 2 μm) of the clay mineral society reference clays. Clays Clay Miner. 50 (2002) 388-400
101. Wagner T. Late Cretaceous to early Quaternary organic sedimentation in the eastern equatorial Atlantic. Palaeogeogr. Palaeoclimatol. Palaeoecol. 179 (2002) 113-147
102. Wagner T., and Pletsch T. Tectono-sedimentary controls on Cretaceous black shale deposition along the opening Equatorial Atlantic Gateway (ODP Leg 159). In: Cameron N., Bate R., and Clure V. (Eds). The Oil and Gas Habitats of the South Atlantic. Geol. Soc. London. Spec. Pub. vol. 153 (1999) 241-265
103. Wagner T., Sinninghe Damsté J.S., Hofmann P., and Beckmann B. Euxinia and primary production in Late Cretaceous eastern equatorial Atlantic surface waters fostered orbitally driven formation of marine black shales. Paleoceanography 19 (2004) PA3009 10.1029/2003PA000898
104. Wehrli B., and Stumm W. Vanadyl in natural waters: adsorption, and hydrolysis promote oxygenation. Geochim. Cosmochim. Acta 53 (1989) 69-77
105. Yakushev E.V., Pollehne F., Jost G., Kuznetsov I., Schneider B., and Umlauf L. Analysis of the water column oxic/anoxic interface in the Black and Baltic seas with a numerical model. Mar. Chem. 107 (2007) 388-410
106. Yao W., and Millero F.J. Oxidation of hydrogen sulfide by hydrous Fe(III) oxides in seawater. Mar. Chem. 52 (1996) 1-16
107. Zheng Y., Anderson R.F., van Geen A., and Kuwabara J.S. Authigenic molybdenum formation in marine sediments: a linkage to pore water sulfide in the Santa Barbara Basin. Geochim. Cosmochim. Acta 64 (2000) 4165-4178