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Sea floor responses to hydrocarbon seeps, Louisiana continental slope

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Abstract

Observations and samples from research submersible dives confirm that brines, crude oil, fluid mud, and gases are common seep products. Through this mechanism a unique interplay of geochemical, geologic, and biological processes resulting in unusual sea floor features ranging from carbonate-rich nodular sediments to mounds with tens of meters relief. Stable carbon isotopes occluded in the carbonates provide a permanent imprint that links these authigenic carbonates to by-products of microbial breakdown of crude oil and gas. Recent DSV ALVIN dives confirm that hydrocarbon seeps and their accompanying chemosynthetic communities and authigenic carbonate mounds occur over the entire depth range of the slope.

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References

  • Aharon P, Roberts, HH, Sassen, R, Wheeler, C, Fang, J (1989) An isotope study of cold vent deposits from the continental slope, Gulf of Mexico: Progress Report. Geological Society America Abstracts, p 21

  • Anderson RK, Scalan S, Parker PL, Behrens EW (1983) Seep oil and gas in Gulf of Mexico slope sediments. Science 222:619–621

    Google Scholar 

  • Behrens EW (1988) Geology of a continental slope oil seep, northern Gulf of Mexico. American Association Petroleum Geologists Bulletin 72:105–114

    Google Scholar 

  • Brooks JM, Cox BH, Bryant WR, Kennicutt MC II, Mann RG, McDonald TJ (1986) Association of gas hydrates and oil seepage in the Gulf of Mexico. In: Leythaceuser D, Rullkotter J (eds) Advances in Organic Geochemistry, 1985. Organic Geochemistry 10:221–234

    Google Scholar 

  • Brooks JM, Kennicutt MC II, Fay RR, McDonald TJ, Sassen R (1984) Thermogenic gas hydrates in the Gullf of Mexico. Science 225:409–411

    Google Scholar 

  • Brooks JM, Kennicutt MC, Fisher CR, Macko SA, Cole K, Childress JJ, Bidigare RR, Vetter RD (19878) Deep-sea hydrocarbon seep communities: Evidence for energy and nutritional carbon sources. Science 238:1138–1142

    Google Scholar 

  • Brooks JM, Wiesenburg PA, Roberts HH, Carney RS, MacDonald IR, Fisher CR, Guinasso NL Jr, Sager WW, McDonald RA, Burke RA Jr, Bright TJ (in press) Salt, seeps, and symbiosis in the Gulf of Mexico: A preliminary report of deep water discoveries using DSV ALVIN. American Geophysical Union, EOS

  • Childress JJ, Fisher CR, Brooks JM, Kennicutt MC, Bidigare RR, Anderson AE (1986) A methanotrophic marine molluscan (Bivalvia, Mytilidae) symbiosis: Mussels fueled by gas. Science 233:1306–1308

    Google Scholar 

  • Hathaway JC, Degens ET (1969) Methane-derived marine carbonates of Pleistocene age. Science 165:690–692

    Google Scholar 

  • Hovland M, Talbot MR, Quale H, Olanssen S, Aasberg L (1987) Methane-related carbonate cements in pockmarks of the North Sea. Journal Sedimentary Petrology 57:881–892

    Google Scholar 

  • Kennicutt MC, Brooks JM, Bidigare RR, Fay RR, Wade TL, McDonald TJ (1985) Vent-type taxa in a hydrocarbon seep region of the Louisiana slope. Nature 317:351–353.

    Article  Google Scholar 

  • Kennicutt MC II, Denoux GJ, Brooks JM, Sandberg WA (1987) Hydrocarbons in Mississippi Fan and intraslope basin sediments. Geochimica et Cosmochimica Acta 51:1457–1466.

    Article  Google Scholar 

  • MacDonald IR, Reilly JF, Guianasso NL, Brooks JM, Carney RS, Bryant WA, Bright TJ (1990) Chemosynthetic mussels at a brine-filled pockmark in the northern Gulf of Mexico. Science 248:1096–1099

    Google Scholar 

  • Paull CK, Jull AJT, Toolin LJ, Linick T (1985) Stable isotope evidence for chemosynthesis in an abyssal seep community. Nature 317:709–711.

    Article  Google Scholar 

  • Rezak R, Bright TJ, McGrail DW (1985) Reefs and Banks of the Northwestern Gulf of Mexico: Their Geological, Biological, and Physical Dynamics. John Wiley and Sons, New York, NY p 259

    Google Scholar 

  • Roberts HH, Coleman JM (1988) Lithofacies characteristics of shallow expanded and condensed sections of the Louisiana distal shelf and upper slope. Gulf Coast Association of Geological Societies Transactions 38:291–301

    Google Scholar 

  • Roberts HH, Sassen R, Aharon P (1987) Carbonates of the Louisiana continental slope. Proceedings 19th Annual Offshore Technology Conference, Houston, TX, OTC 5463:373–382

  • Roberts HH, Sassen R, Aharon P (1988) Petroleum-derived authigenic carbonates of the Louisiana continental slope. Proceedings Oceans '88 Conference

  • Roberts HH, Sassen R, Carney R, Aharon P (1989) Carbonate buildups on the continental slope off Louisiana. Proceedings 21st Offshore Technology Conference, OTC 5953:655–662

  • Roberts HH, Whelan T III (1975) Methane-derived carbonate cements in barrier and beach sands of a subtropical delta complex. Geochimica et Cosmochimica Acta 39:1085–1089

    Article  Google Scholar 

  • Sibuet M, Juniper SK, Pautot G (1988) Cold-seep benthic communities in the Japan subduction zones: Geological control of community development. Journal Marine Research 46:333–348

    Article  Google Scholar 

  • Suter JR, Berryhill HL Jr (1985) Late Quaternary shelf margin deltas, northwest Gulf of Mexico. American Association Petroleum Geologists Bulletin 69:77–91

    Google Scholar 

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Roberts, H.H., Aharon, P., Carney, R. et al. Sea floor responses to hydrocarbon seeps, Louisiana continental slope. Geo-Marine Letters 10, 232–243 (1990). https://doi.org/10.1007/BF02431070

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  • DOI: https://doi.org/10.1007/BF02431070

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