Mo-total organic carbon covariation in modern anoxic marine environments: Implications for analysis of paleoredox and paleohydrographic conditions

Paleoceanography

Volumn 21, Issue 1, 2006, Pages

  Algeo, Thomas J ^a   Lyons, Timothy W ^b  

^a UNIVERSITY OF CINCINNATI   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

FACIES; MARINE SEDIMENT; ORGANIC CARBON; PALEOCEANOGRAPHY; PALEOHYDROLOGY;

ATLANTIC OCEAN; BLACK SEA; BRITISH COLUMBIA; CANADA; CARIACO BASIN; CARIBBEAN SEA; EURASIA; EUROPE; FRAMVAREN FJORD; NORTH AMERICA; NORTHERN EUROPE; NORWAY; SAANICH INLET; SCANDINAVIA; VEST-AGDER;

EID: 33646345833     PISSN: 08838305     EISSN: None     Source Type: Journal    
DOI: 10.1029/2004PA001112     Document Type: Article

References (127)

1. Adelson, J. M., G. R. Helz, and C. V. Miller (2001), Reconstructing the rise of recent coastal anoxia: Molybdenum in Chesapeake Bay sediments, Geochim. Cosmochim. Acta, 65, 237-252.
2. Algeo, T. J. (2004), Can marine anoxic events draw down the trace-element inventory of sea-water?, Geology, 32, 1057-1060.
3. Algeo, T. J., and J. B. Maynard (2004), Trace element behavior and redox facies in core shales of Upper Pennsylvanian Kansas-type cyclothems, Chem. Geol., 206, 289-318.
4. Algeo, T. J., L. Schwark, and J. C. Hower (2004), High-resolution geochemistry and sequence stratigraphy of the Hushpuckney Shale (Swope Formation, eastern Kansas): Implications for climato-environmental dynamics of the Late Pennsylvanian Midcontinent Seaway, Chem. Geol., 206,259-288.
5. Anbar, A. D. (2004), Molybdenum stable isotopes: Observations, interpretations and directions, in Geochemistty of Non-Traditional Stable Isotopes, edited by C. Johnson et al., Rev. Mineral. Geochem., vol. 55, pp. 429-454, Mineral. Sec. of Am., Washington, D. C.
6. Anbar, A. D., and A. H. Knoll (2002), Proterozoic ocean chemistry and evolution: A bioinorganic bridge?, Science, 297, 1137-1142.
7. Anderson, J. J., and A. H. Devol (1973), Deep water renewal in Saanich Inlet, an intermittently anoxic basin, Estuarine Coastal Mar. Sci., 1, 1-10.
8. Anderson, L. G., D. Dyrssen, and P. 0. J. Hall (1988), On the sulphur chemistry of a super-anoxic fjord, Framvaren, south Norway, Mar Chem., 23, 283-293.
9. Anderson, R. F., and M. Q. Fleisher (1991), Uranium precipitation in Black Sea sediments, in Black Sea Oceanography, edited by E. Izdar and J. W. Murray, pp. 443-458, Springer, New York.
10. Anderson, R. F., T. W. Lyons, and G. L. Cowie (1994), Sedimentary record of a shoaling of the oxic/anoxic interface in the Black Sea, Mar Geol., 116,373-384.
11. Arnold, G. L., A. D. Anbar, J. Barling, and T. W. Lyons (2004), Molybdenum isotope evidence for widespread anoxia in mid-Proterozoic oceans, Science, 304, 87-90.
12. Arthur, M. A., and B. B. Sageman (1994), Marine black shales: Depositional mechanisms and environments of ancient deposits, Annu. Rev. Earth Planet. Sci., 22, 499-551.
13. Arthur, M. A., W. E. Dean, E. D. Neff B. J. Hay, J. King, and G. Jones (1994), Varve-calibrated records of carbonate and organic carbon accumulation over the last 2000 years in the Black Sea, Global Biogeochem. Cycles, 8, 195-217.
14. Barling, J., G. L. Arnold, and A. D. Anbar (2001), Natural mass-dependent variations in the isotopic composition of molybdenum, Earth Planet. Sci. Lett., 193, 447-457.
15. Berrang, P. G., and E. V. Grill (1974), The effect of manganese oxide scavenging on molybdenum in Saanich Inflet, British Columbia, Mar. Chem., 2, 125-148.
16. Bertine, K. K., and K. K. Turekian (1973), Molybdenum in marine deposits, Geochim. Cosmochim. Acta, 37, 1415-1434.
17. Bremner, J. M. (1983), Biogenic sediments on the south West African (Namibian) continental margin, in Coastal Upwelling: Its Sediment Record, part B, Sedimentary Records of Ancient Coastal Upwelling, edited by J. Thiede and E. Suess, pp. 73-103, Springer, New York.
18. Brewer, P. G., and D. W. Spencer (1974), Distribution of some trace elements in Black Sea and their flux between dissolved and particulate phases, in The Black Sea - Geology, Chemistry, and Biology, edited by E. T. Degens and D. A. Ross, AAPG Mem., 20, 137-143.
19. Brongersma-Sanders, M., K. M. Stephan, T. G. Kwee, and M. De Bruin (1980), Distribution of minor elements in cores from the southwest Africa shelf with notes on plankton and fish mortality, Mar Geol., 37, 91-132.
20. Brumsack, H. J. (1989), Geochemistry of recent TOC-rich sediments from the Gulf of California and the Black Sea, Geol. Rundsch., 78, 851-882.
21. Calvert, S. E., and N. B. Price (1970), Minor metal contents of Recent organic-rich sediments off south west Africa, Nature, 227, 593-595.
22. Calvert, S. E., and N. B. Price (1983), Geochemistry of Namibian Shelf sediments, in Coastal Upwelling: Its Sediment Record, part A, Responses of the Sedimentary Regime to Present Coastal Upwelling, edited by E. Suess and J. Thiede, pp. 337-375, Springer, New York.
23. Calvert, S. E., R. E. Karlin, L. J. Toolin, D. J. Donahue, J. R. Southon, and J. S. Vogel (1991), Low organic carbon accumulation rates in Black Sea sediments, Nature, 350, 692-695.
24. Chapman, P., and G. W. Bailey (1991), Short-term variability during an anchor station study in the southern Benguela upwelling system: Introduction, Prog. Oceanogr, 28, 1-7.
25. Chapman, P., and L. V Shannon (1985), Seasonality in the oxygen minimum layers at the extremities of the Benguela system, S. Afr. J Mar. Sci., 5, 85-94.
26. Colodner, D., J. Edmond, and E. Boyle (1995), Rhenium in the Black Sea: Comparison with molybdenum and uranium, Earth Planet. Sci. Lett., 131, 1-15.
27. Crusius, J., S. Calvert, T. Pedersen, and D. Sage (1996), Rhenium and molybdenum enrichments in sediments as indicators of oxic, suboxic and sulfidic conditions of deposition, Earth Planet. Sci. Lett., 145, 65-78.
28. Crusius, J., T. F. Pedersen, S. E. Calvert, G. L. Cowie, and T. Oba (1999), A 35 kyr geochemical record from the Sea of Japan of organic matter flux variations and changes in intermediate water oxygen concentrations, Paleoceanography, 14, 248-259.
29. Dean, W. E., J. V. Gardner, and D. Z. Piper (1997), Inorganic geochemical indicators of glacial-interglacial changes in productivity and anoxia of the California continental margin, Geochim. Cosmochim. Acta, 61, 4507-4518.
30. Dean, W. E., D. Z. Piper, and L. C. Peterson (1999), Molybdenum accumulation in Cariaco basin sediment over the past 24 k. y.: A record of water-column anoxia and climate, Geology, 27, 507-510.
31. Degens, E. T., and D. A. Ross (Eds.) (1974), The Black Sea - Geology Chemistry, and Biology, AAPG Mem., 20, 633 pp.
32. Demaison, G. J., and G. T. Moore (1980), Anoxic environments and oil source bed genesis, AAPG Bull., 64, 1179-1209.
33. Deuser, W. G. (1973), Cariaco Trench - Oxidation of organic matter and residence time of anoxic water, Nature, 242, 601-603.
34. Dingle, R. V., and G. Nelson (1993), Sea-bottom temperature, salinity and dissolved oxygen on the continental margin off south-western Africa, S. Afr. J. Mar. Sci., 13, 33-49.
35. Dyrssen, D. W. (1999), Framvaren and the Black Sea-Similarities and differences, Aquat Geochem., 5, 59-73.
36. Dyrssen, D. W., P. 0. J. Hall, C. Haraldsson, M. Chierici, J. Skei, and H. G. Östlund (1996). Time dependence of organic matter decay and mixing processes in Framvaren, a permanently anoxic fjord in south Norway, Aquat. Geochem., 2, 111-129.
37. Emerson, S, R., and S. S. Huested (1991), Ocean anoxia and the concentrations of molybdenum and vanadium in seawater, Mar Chem., 34, 177-196,
38. Erickson, B. E., and G. R. Helz (2000), Molybdenum(VI) speciation in sulfidic waters: Stability and lability of thiomolybdates, Geochim. Cosmochim. Acta, 64, 1149-1158.
39. Falkner, K. K., D. J. O'Neill, J. F. Todd, W. S. Moore, and J. M. Edmond (1991), Depletion of barium and radium-226 in Black Sea surface waters over the past thirty years, Nature, 350, 491-494.
40. François, R. (1987), Some aspects of the geochemistry of sulphur and iodine in marine humic substances and transition metal enrichment in anoxic sediments, Ph.D. dissertation, 462 pp., Univ. of B. C., Vancouver, B.C., Canada.
41. François, R. (1988), 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, 285-308.
42. Friedrich, H. J., and E. V. Stanev (1989), Parameterization of vertical diffusion in a numerical model of the Black Sea, in Small-Scale Turbulence and Mixing in the Ocean, edited by J. C. J. Nihoul and B. M. Jamart, pp. 151-167, Elsevier, New York.
43. Fry, B., H. W. Jannasch, S. J. Molyneaux, C, O. Wirsen, J. A. Muramoto, and S. King (1991), Stable isotope studies of the carbon, nitrogen and sulfur cycles in the Black Sea and Cariaco Trench, Deep Sea Res., Part A, 38, S1003-S1019.
44. Gade, H. G., and A. Edwards (1980), Deep-water renewal in fjords, in Fjord Oceanography, edited by H. J. Freeland et al., pp. 453-489, Plenum, New York.
45. Gunnerson, C. G., and E. Özturgut (1974), The Bosporus, in The Black Sea - Geology, Chemistry, and Biology, edited by E. T. Degens and D. A. Ross, AAPG Mem., 20, 99-114.
46. Haug, G. H., T. F. Pedersen, D. M. Sigman, S. E. Calvert, B. Nielsen, and L. C. Peterson (1998), Glacial/interglacial variations in production and nitrogen fixation in the Cariaco Basin during the last 580 kyr, Paleoceanography, 13, 427-432.
47. Helz, G. R., C. V. Miller, J. M. Charnock, J. F. W. Mosselmans, R. A. D. Pattrick, C. D. Garner, and D. J, Vaughan (1996), Mechanism of molybdenum removal from the sea and its concentration in black shales: EXAFS evidence, Geochim. Cosmochim. Acta, 60, 3631-3642.
48. Hirst D. M. (1974), Geochemistry of sediments from eleven Black Sea cores, in The Black Sea - Geology, Chemistry, and Biology, edited by E. T. Degens, and D. A. Ross, AAPG Mem., 20, 430-455.
49. Holland, H. D. (1984), ne Chemical Evolution of the Atmosphere and Oceans, 582 pp., Princeton Univ. Press, Princeton, N. J.
50. Holmen, K. J., and C. G. H. Rooth (1990), Ventilation of the Cariaco Trench, a case of multiple source competition?, Deep Sea Res., Part A, 37, 203-225.
51. Huerta-Diaz, M. G., and J. W. Morse (1992), Pyritization of trace metals in anoxic marine sediments, Geochim. Cosmochim. Acta, 56, 2681-2702.
52. Hughen, K. A., J. T. Overpeck, S. J. Lehman, M. Kashgarian, J. Southon, L. C. Petersonk, R. Alley, and D. M. Sigman (1998), Deglacial changes in ocean circulation from an extended radiocarbon calibration, Nature, 391, 65-68.
53. Jacobs, L. A. (1984), Metal geochemistry in anoxic marine basins, Ph.D. dissertation, 217 pp., Univ. of Wash., Seattle.
54. 2S interface in a permanently anoxic basin: Framvaren Fjord, Norway, Geochim. Cosmochim. Acta, 49, 1433-1444.
55. Jacobs, L., S. Emerson, and S. S. Huested (1987), Trace metal geochemistry in the Cariaco Trench, Deep Sea Res., Part A, 34, 965-981.
56. Jones, B., and D. A. C. Manning (1994), Comparison of geochemical indices used for the interpretation of palaeoredox conditions in ancient mudstones, Chem. Geol., 111, 111-129.
57. Jones, G. A., and A. R. Gagnon (1994), Radiocarbon chronology of Black Sea sediments, Deep Sea Res., Part A, 41, 531-557.
58. Kah, L. C., T. D. Frank, and T. W. Lyons (2004), Low marine sulphate and protracted oxygenation of the Proterozoic biosphere, Nature, 431, 834-838.
59. Karl, D. M., and G. A. Knauer (1991), Microbial production and particle flux in the upper 350 m of the Black Sea, Deep Sea Res., Part A, 38, S921-S942.
60. Landing, W. M., and S. Westerlund (1988), The solution chemistry of iron(II) in Framvaren Fjord, Mar Chem., 23, 329-343.
61. Lewan, M. D., and J. B. Maynard (1982), Factors controlling the enrichment of vanadium and nickel in the bitumen of organic sedimentary rocks, Geochim. Cosmochim. Acta, 46, 2547-2560.
62. Lyons, T. W. (1991), Upper Holocene sediments of the Black Sea: Summary of Leg 4 box cores (1988 Black Sea Oceanographic Expedition), in Black Sea Oceanography, edited by E. Izdar and J. W. Murray, pp. 401-441, Springer, New York.
63. Lyons, T. W. (1992), Comparative study of Holocene Black Sea sediments from oxic and anoxic sites of deposition: Geochemical and sedimentological criteria, Ph.D. dissertation, 377 pp., Yale Univ., New Haven, Conn.
64. Lyons, T. W. (1997), Sulfur isotopic trends and pathways of iron sulfide formation in upper Holocene sediments of the anoxic Black Sea, Geochim. Cosmochim. Acta, 61, 3367-3382.
65. Lyons, T. W., and R. A. Berner (1992), Carbon-sulfur-iron systematics of the uppermost deep-water sediments of the Black Sea, Chem. Geol., 99,1-27.
66. Lyons, T. W., R. A. Berner, and R. F. Anderson (1993), Evidence for large pre-industrial perturbations of the Black Sea chemocline, Nature, 365, 538-540.
67. Lyons, T. W., J. P. Werne, D. J. Hollander, and R. W. Murray (2003), Contrasting sulfur geochemistry and Fe/A1 and Mo/A1 ratios across the last oxic-to-anoxic transition in the Cariaco Basin, Venezuela Chem. Geol., 195, 131-157.
68. Magyar, B., H. C. Moor, and L. Sigg (1993), Vertical distribution and traWort of molybdenum in a lake with a seasonally anoxic hypolimnion, Limnol. Oceanogr, 38, 521-531.
69. Matthäus, W. (1995), Natural variability and human impacts reflected in long-term changes in the Baltic deep-water conditions - A brief review, Disch. Hydrogr. Z, 47, 47-65.
70. Meyers, S. R., B. B. Sagernan, and T. W. Lyons (2005), Organic carbon burial rate and the molybdenum proxy: Theoretical framework and application to Cenomanian-Turonian oceanic anoxic event 2, Paleoceanography, 20, PA2002, doi:10.1029/2004PA001068.
71. Millero, F. J. (1996), Chemical Oceanography, 2nd ed., 469 pp., CRC Press, Boca Raton, Fla.
72. Molvaer, J. (1980), Deep-water renewals in the Frierfjord - An intermittently anoxic basin, in Fjord Oceanography, edited by H. J. Freeland et al., pp. 531-539, Springer, New York.
73. Morford, J. L., and S. Emerson (1999), The geochemistry of redox sensitive trace metals in sediments, Geochim. Cosmochim. Acta, 63, 1735-1750.
74. Morford, J. L., A. D. Russell, and S. Emerson (2001), Trace metal evidence for changes in the redox environment associated with the transition from terrigenous clay to diatomaceous sediment, Saanlich Inlet, BC, Mar Geol., 174, 355-369.
75. Morse, J. W. and G. W. Luther III (1999), Chemical influences on trace metal-sulfide interactions in anoxic sediments, Geochim. Cosmochim. Acta, 63, 3373-3378.
76. Müller-Karger, F., et al. (2001), Annual cycle of primary productivity in the Cariaco Basin - Response to upwelling and implications for vertical export, J. Geophys. Res., 106, 4527-4542.
77. Murray, J. W. (1975), The interaction of metal ions at the manganese dioxide-solution interface, Geochim. Cosmochim. Acta, 42, 1011-1026.
78. Murray, J. W. (1991a), Hydrographic variability in the Black Sea, in Black Sea Oceanography, edited by E. Izdar and J. W. Murray, pp. 1-15, Springer, New York.
79. Murray, J. W. (Ed.) (1991b), Black Sea oceanography: Results of the 1988 Black Sea expedition, Deep Sea Res., Part A, 38, S655-S1266.
80. Murray, J. W., H. W. Jannasch, S. Honjo, R. F. Anderson, W. S. Reeburgh, Z. Top, G. E. Friederich, L. A. Codispoti, and E. Izdar (1989), Unexpected changes in the oxic/anoxic interface in the Black Sea, Nature, 338, 411-413.
81. Murray, J. W., Z. Top, and E. Oszoy (1991), Hydrographic properties and ventilation of the Black Sea, Deep Sea Res., Part A, 38, S663-S689.
82. Naes, K., J. M. Skei, and P. Wassmarm (1988), Total particulate and organic fluxes in anoxic Framvaren waters, Mar. Chem., 23, 257-268.
83. Östlund, H. G. (1974), Expedition "Odysseus 65": Radiocarbon age of Black Sea deep water, in The Black Sea - Geology, Chemistry, and Biology, edited by E. T. Degens and D. A. Ross, AAPG Mem., 20,127-132.
84. Östlund, H. G., and D. Dyrssen (1986), Renewal rates of the Black Sea deep water, in The Chemical and Physical Oceanography of the Black Sea, Rep. Chem. Sea XXXIII, Univ. of Göteborg, Göteborg, Sweden.
85. Peterson, L. C., J. T. Overpeck, N. G. Kipp, and J. Imbrie (1991), A high-resolution late Quaternary upwelling record from the anoxic Cariaco Basin, Venezuela, Paleoceanography, 6, 99-119.
86. Peterson, L. C., G. H. Haug, R. W. Murray, K. M. Yarincik, J. W. King, T. J. Bralower, K. Kameo, S. D. Rutherford, and R. B. Pearce (2000), Late Quaternary stratigraphy and sedimentation at Site 1002, Cariaco Basin (Venezuela), in Proc. Ocean Drill. Program Sci. Results, 165, 85-99.
87. Piper, D. Z. (1994), Seawater as the source of minor elements in black shales, phosphorites, and other sedimentary deposits, Chem. Geol., 114, 95-114.
88. Piper, D. Z., and W. E. Dean (2002), Trace-element deposition in the Cariaco Basin, Venezuela Shelf, under sulfate-reducing conditions - A history of the local hydrography and global climate, 20 ka to the present, U.S. Geol. Surv. Prof Pap., 1670, 41 pp.
89. Piper, D. Z., and C. M. Isaacs (1996), Instability of bottom-water redox conditions during accumulation of Quaternary sediments in the Japan Sea, Paleoceanography, 11, 171-190.
90. Popescu, I., G. Lericolais, N. Panin, A. Normand, C. Dina, and E. Le Drezen (2004), The Danube submarine canyon (Black Sea): Morphology and sedimentary processes, Mar. Geol., 206, 249-265.
91. Pratt, L. M., and C. L. Davis (1992), Intertwined fates of metals, sulfur, and organic carbon in black shales, in Geochemistry of Organic Matter in Sediments and Sedimentary Rocks, edited by L. M. Pratt et al., SEPM Short Course, 27, 1-27.
92. Price, N. B., and S. E. Calvert (1973), The geochemistry of iodine in oxidized and reduced Recent marine sediments, Geochim. Cosmochim. Acta, 37, 2149-2158.
93. Ravizza, G., K. K. Turekian, and B. J. Hay (1991), The geochemistry of rhenium and osmium in recent sediments from the Black Sea, Geochim. Cosmochim. Acta, 55, 3741-3752.
94. Robl, T. L., and L. S. Barron (1987), The geochemistry of Devonian black shales in central Kentucky and its relationship to interbasinal correlation and depositional environment, in Devonian of the World, vol. 2, Sedimentation, edited by N. J. McMillan et al., Mem. Can. Soc. Pet. Geol., 14, 377-392.
95. Russell, A. D., and J. L. Morford (2001), The behavior of redox-sensitive metals across a laminated-massive-laminated transition in Saanich Inlet, British Columbia, Mar Geol., 174, 341-354.
96. Sageman B. B., D. J. Hollander, T. W. Lyons, A. E. Murphy, C. A. Ver Straeten, and J. P. Werne (2003), A tale of shales: The relative roles of production, decomposition, and dilution in the accumulation of organic-rich strata, Middle-Upper Devonian, Appalachian Basin, Chem. Geol., 195, 229-273.
97. Scranton, M. I., F. L. Sayles, M. P. Bacon, and P. G. Brewer (1987), Temporal changes in the hydrography and chemistry of the Cariaco Trench, Deep Sea Res., Part A, 34, 945-963.
98. Scranton, M. I., Y. Astor, R. Bohrer, T.-Y. Ho, and F. Müller-Karger (2001), Controls on temporal variability of the geochemistry of the deep Cariaco Basin, Deep Sea Res., Part I, 48, 1605-1625.
99. Shimkus, K. M., and E. S. Trimonis (1974), Modem sedimentation in Black Sea, in The Black Sea - Geology, Chemistry and Biology, edited by E. T. Degens and D. A. Ross, AAPG Mem., 20,249-278.
100. Shipboard Scientific Party (1997), Site 1002, in Proc. Ocean Drill. Program Initial Rep., 165, 359-373.
101. Shipboard Scientific Party (1998), Sites 1033 and 1034, in Proc. Ocean Drill. Program Initial Rep., 169S, 11-61.
102. Skei, J. (1981), Et biogeokjemisk stadium av en permanent anoksisk fjord - Framvaren ved Farsund (in Norwegian), Rep. F-80400, 108 pp., Nor. Inst. for Vannforsk., Oslo.
103. Skei, J. (1983), Geochemical and sedimentological considerations of a permanently anoxic fjord - Framvaren, south Norway, Sediment. Geol., 36, 131-145.
104. Skei, J. (1986), The biogeochemistry of Framvaren: A permanent anoxic; fjord near Farsund, south Norway, Rep. F-80400-1, 256 pp., Nor. Inst. for Vannforsk., Oslo.
105. Skei, J. M. (1988), Framvaren - Environmental setting, Mar. Chem., 23, 209-218.
106. Skei, J., D. H. Loring, and R. T. T. Rantala (1988), Partitioning and enrichment of trace metals in a sediment core from Framvaren, south Norway, Mar Chem., 23, 269-281.
107. Skei, J., D. H. Loring, and R. T. T. Rantala (1996), Trace metals in suspended particulate matter and in sediment trap material from a permanently anoxic fjord - Framvaren, south Norway, Aquat. Geochem., 2, 131-147.
108. Stigebrandt, A., and J. Molvaer (1988), On the water exchange of Framvaren, Mar Chem., 23, 219-228.
109. Taylor, S. R., and S. M. McLennan (1985), The Continental Crust: Its Composition and Evolution, 312 pp., Blackwell, Malden, Mass.
110. Top, Z., and W. B. Clarke (1983), Helium, neon and tritium in the Black Sea, J. Mar Res., 41, 1-17.
111. Top, Z., E. Izdar, M. Ergün, and T. Konuk (1990), Evidence of tectonism from 3He and residence time of helium in the Black Sea, Eos Pans. AGU, 71(32), 1020-1021.
112. Tugrul, S., O. Basturk, C. Saydam, and A. Yilmaz (1992), Changes in the hydrochemistry of the Black Sea inferred from water density profiles, Nature, 359, 137-139.
113. Veeh, H. H., S. E. Calvert, and N. B. Price (1974), Accumulation of uranium in sediments and phosphorites of the south west African shelf, Mar Chem., 2, 189-202.
114. Volkov, I. I., and L. S. Fomina (1974), Influence of organic material and processes of sulfide formation on distribution of some trace elements in deep-water sediments of Black Sea, in The Black Sea - Geology, Chemistry, and Biology, edited by E. T. Degens and D. A. Ross, AAPG Mem., 20, 456-476,
115. Vorlicek, T. P., and G. R. Helz (2002), Catalysis by mineral surfaces: Implications for Mo geo-chemistry in anoxic environments, Geochim. Cosmochim. Acta, 66,3679-3692.
116. Wakeham, S. G. (1990), Algal and bacterial hydrocarbons in particulate matter and interfacial sediment of the Cariaco Trench, Geochim. Cosmochim. Acta, 54, 1325-1336.
117. Waldron, H. N., and T. A. Probyn (1991), Short-term variability during an anchor station study in the southern Benguela upwelling system: Nitrogen supply to the euphoric zone during a quiescent phase in the upwelling cycle, Prog. Oceanogr, 28, 153-166.
118. Wedepohl, K. H. (1971), Environmental influences on the chemical composition of shales and clays, Phys. Chem. Earth, 8, 307-331.
119. Werne, J. P., D. J. Hollander, T. W. Lyons, and L. C. Peterson (2000), Climate-induced variations in productivity and planktonic ecosystem structure from the Younger Dryas to Holocene in the Cariaco Basin, Venezuela, Paleoceanography, 15, 19-29.
120. Wignall, P. B. (1994), Black Shales, 127 pp., Clarendon, Oxford, UK.
121. 2S redox transition, Geochim. Cosmochim. Acta, 65, 1399-1416.
122. Wilkin, R. T., M. A. Arthur, and W. E. Dean (1997), History of water-column anoxia in the Black Sea indicated by pyrite framboid size distributions, Earth Planet. Sci. Lett., 148, 517-525.
123. Wright, J., and A. Colling (1995), Seawater: Its Composition, Properties and Behaviour, 2nd ed., 168 pp., Elsevier, New York.
124. Yao, W., and F. J. Millero (1995), The chemistry of the anoxic waters in the Framvaren Fjord, Norway, Aquat. Geochem., 1, 53-88.
125. Yarincik, K. M., R. W. Murray, T. W. Lyons, L. C. Peterson, and G. H. Haug (2000), Oxygenation history of bottom waters in the Cariaco Basin, Venezuela, over the past 578,000 years: Results from redox-sensitive metals (Mo, V, Mn, and Fe), Paleoceanography, 15, 593-604.
126. Zhang, J.-Z., and J. J. Millero (1993), The chemistry of anoxic waters in the Cariaco Trench, Deep Sea Res., Part I, 40, 1023-1041.
127. Zheng, Y., R. F. Anderson, A. van Geen, and J. S. Kuwabara (2000), Authigenic molybdenum formation in marine sediments: A linkage to pore water sulfide in the Santa Barbara Basin, Geochim. Cosmochim. Acta, 64, 4165-4178.