Methane hydrate-bearing seeps as a source of aged dissolved organic carbon to the oceans

Marine sediments contain large quantities of carbon, primarily in the form of gas hydrate. Isotopic analyses suggest that carbon derived from fossil methane accounts for up to 28% of the dissolved organic carbon in sea water overlying hydrate-bearing seeps in the northeastern Pacific Ocean.

[1]  Reinoud Segers,et al.  Methane production and methane consumption: a review of processes underlying wetland methane fluxes , 1998 .

[2]  Robert F. Chen,et al.  Contribution of “Old” carbon from natural marine hydrocarbon seeps to sedimentary and dissolved organic carbon pools in the Gulf of Mexico , 2001 .

[3]  N. Ross Chapman,et al.  The origin of thermogenic gas hydrates on the northern Cascadia Margin as inferred from isotopic (13C/12C and D/H) and molecular composition of hydrate and vent gas , 2005 .

[4]  D. Hutchinson,et al.  Assessing sulfate reduction and methane cycling in a high salinity pore water system in the northern Gulf of Mexico , 2008 .

[5]  Gerold Wefer,et al.  Ocean Margin Systems , 2003 .

[6]  M. Torres,et al.  The stable carbon isotope biogeochemistry of acetate and other dissolved carbon species in deep subseafloor sediments at the northern Cascadia Margin , 2009 .

[7]  E. Druffel,et al.  Dissolved Organic Matter in the Ocean: Comments on a Controversy , 1988 .

[8]  Dennis A. Hansell,et al.  Dissolved Organic Matter in the Ocean , 2009 .

[9]  W. Reeburgh,et al.  Attention turns to naturally occurring methane seepage , 2001 .

[10]  Tori M. Hoehler,et al.  Field and laboratory studies of methane oxidation in an anoxic marine sediment: Evidence for a methanogen‐sulfate reducer consortium , 1994 .

[11]  Christopher L. Osburn,et al.  The use of wet chemical oxidation with high‐amplification isotope ratio mass spectrometry (WCO‐IRMS) to measure stable isotope values of dissolved organic carbon in seawater , 2007 .

[12]  D. Archer,et al.  Global inventory of methane clathrate: sensitivity to changes in the deep ocean , 2004 .

[13]  K. Kvenvolden.  Methane hydrate — A major reservoir of carbon in the shallow geosphere? , 1988 .

[14]  A. Milkov.  Global estimates of hydrate-bound gas in marine sediments: how much is really out there? , 2004 .

[15]  John B. Miller,et al.  Calculating isotopic fractionation from atmospheric measurements at various scales , 2003 .

[16]  J. Zachos,et al.  Rapid Acidification of the Ocean During the Paleocene-Eocene Thermal Maximum , 2005, Science.

[17]  J. Pohlman.  Sediment Biogeochemistry of Northern Cascadia Margin Shallow Gas Hydrate Systems , 2006 .

[18]  C. Masiello,et al.  Distributions of dissolved organic and inorganic carbon and radiocarbon in the eastern North Pacific continental margin , 1998 .

[19]  J. Bauer,et al.  Methane sources in gas hydrate-bearing cold seeps: Evidence from radiocarbon and stable isotopes , 2009 .

[20]  J. Bauer,et al.  Ocean margins as a significant source of organic matter to the deep open ocean , 1998, Nature.

[21]  J. M. Melancon,et al.  Gulf of Mexico outer continental shelf daily oil and gas production rate projections from 1996 through 2000 , 1997 .

[22]  D. Valentine,et al.  Biogeochemical investigations of marine methane seeps, Hydrate Ridge, Oregon , 2005 .

[23]  J. Hedges,et al.  Global biogeochemical cycles: progress and problems , 1992 .

[24]  Kerstin Jerosch,et al.  Methane discharge from a deep-sea submarine mud volcano into the upper water column by gas hydrate-coated methane bubbles , 2006 .

[25]  S. Mau,et al.  Estimates of methane output from mud extrusions at the erosive convergent margin off Costa Rica , 2006 .

[26]  A. Milkov.  Worldwide distribution of submarine mud volcanoes and associated gas hydrates , 2000 .

[27]  T. Dittmar,et al.  Thermogenic organic matter dissolved in the abyssal ocean , 2006 .

[28]  W. Ricker.  Linear Regressions in Fishery Research , 1973 .

[29]  W. Reeburgh,et al.  Carbon and hydrogen isotope fractionation resulting from anaerobic methane oxidation , 1988 .

[30]  M. Stuiver,et al.  Discussion: Reporting of 14 C Data , 1977 .

[31]  W. Reeburgh.  Oceanic methane biogeochemistry. , 2007, Chemical reviews.