FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2045842973> ?p ?o ?g. }

• W2045842973 endingPage "196" @default.
• W2045842973 startingPage "175" @default.
• W2045842973 abstract "Transient pore-water and solid-phase signatures in deep subseafloor marine sediments, resulting from changes in both the amount and the quality of the organic matter input, are common but often difficult to interpret. We combined high-resolution pore-water and solid-phase data from Integrated Ocean Drilling Program (IODP) Expedition 323 Site U1341 (Bowers Ridge, Bering Sea) with inverse reaction-transport modeling to examine the evolution and potential preservation of diagenetic signals in these deep subseafloor sediments. We explore how these signals reflect major changes in the deposition and reactivity of organic matter to the seafloor at Bowers Ridge. Results of the inverse model approach reveal that 2.51–2.58 Ma ago a high deposition flux of extremely labile organic matter, probably linked to increased surface water primary productivity, affected this site. Associated elevated organoclastic sulfate reduction rates facilitated low sulfate concentrations, the onset of methanogenesis, and consequently sulfate reduction coupled to the anaerobic oxidation of methane (AOM). Sulfate depletion caused the dissolution of biogenic barite reflected by a sedimentary interval with low Ba/Al ratios. Two sulfate–methane transition zones (SMTZs) evolved where high rates of AOM controlled sulfate consumption which was sustained by the influx of sulfate from seawater above and a deep source below. The positions of both SMTZs shifted non-synchronously over the subsequent ∼130,000 yrs, until methanogenesis and AOM declined. The present-day sulfate concentration and sulfur isotope profiles still reflect the impact of the reactive organic matter pulse. They also record a period of very low reactive organic matter deposition during the middle to late Pleistocene, probably linked to very low primary productivity, resulting in little microbial carbon turnover in the sediment. Our study shows that combining biogeochemical signatures recorded in the solid-phase of deep subseafloor sediments with the analysis of transient pore-water signals by inverse reaction-transport modeling yields new insights into past deep biosphere processes and the paleoproductivity of marine basins." @default.
• W2045842973 created "2016-06-24" @default.
• W2045842973 creator A5014454698 @default.
• W2045842973 creator A5016084790 @default.
• W2045842973 creator A5028423122 @default.
• W2045842973 creator A5077445912 @default.
• W2045842973 creator A5083167052 @default.
• W2045842973 date "2013-05-01" @default.
• W2045842973 modified "2023-10-14" @default.
• W2045842973 title "The evolution of early diagenetic signals in Bering Sea subseafloor sediments in response to varying organic carbon deposition over the last 4.3Ma" @default.
• W2045842973 cites W1547692184 @default.
• W2045842973 cites W1562621146 @default.
• W2045842973 cites W1576460556 @default.
• W2045842973 cites W1590681844 @default.
• W2045842973 cites W1594282911 @default.
• W2045842973 cites W1609225662 @default.
• W2045842973 cites W1612517152 @default.
• W2045842973 cites W1657605574 @default.
• W2045842973 cites W1671613930 @default.
• W2045842973 cites W1754459321 @default.
• W2045842973 cites W1815022930 @default.
• W2045842973 cites W1852432925 @default.
• W2045842973 cites W1965468773 @default.
• W2045842973 cites W1967243127 @default.
• W2045842973 cites W1968698998 @default.
• W2045842973 cites W1970309217 @default.
• W2045842973 cites W1973392970 @default.
• W2045842973 cites W1973627047 @default.
• W2045842973 cites W1974888734 @default.
• W2045842973 cites W1975177396 @default.
• W2045842973 cites W1978981305 @default.
• W2045842973 cites W1978982339 @default.
• W2045842973 cites W1979043629 @default.
• W2045842973 cites W1982151105 @default.
• W2045842973 cites W1982160781 @default.
• W2045842973 cites W1987572797 @default.
• W2045842973 cites W1988241635 @default.
• W2045842973 cites W1994029344 @default.
• W2045842973 cites W1998014287 @default.
• W2045842973 cites W2000489767 @default.
• W2045842973 cites W2000766006 @default.
• W2045842973 cites W2002003061 @default.
• W2045842973 cites W2006896335 @default.
• W2045842973 cites W2009720307 @default.
• W2045842973 cites W2009778629 @default.
• W2045842973 cites W2012455478 @default.
• W2045842973 cites W2012915330 @default.
• W2045842973 cites W2015446114 @default.
• W2045842973 cites W2020519310 @default.
• W2045842973 cites W2020953437 @default.
• W2045842973 cites W2024321818 @default.
• W2045842973 cites W2027433779 @default.
• W2045842973 cites W2027849867 @default.
• W2045842973 cites W2029946516 @default.
• W2045842973 cites W2031199691 @default.
• W2045842973 cites W2032042205 @default.
• W2045842973 cites W2032817239 @default.
• W2045842973 cites W2033084581 @default.
• W2045842973 cites W2033653245 @default.
• W2045842973 cites W2038281478 @default.
• W2045842973 cites W2041330813 @default.
• W2045842973 cites W2042245394 @default.
• W2045842973 cites W2043668123 @default.
• W2045842973 cites W2044603182 @default.
• W2045842973 cites W2045458127 @default.
• W2045842973 cites W2045986399 @default.
• W2045842973 cites W2048829317 @default.
• W2045842973 cites W2050278722 @default.
• W2045842973 cites W2051540030 @default.
• W2045842973 cites W2051730022 @default.
• W2045842973 cites W2054380694 @default.
• W2045842973 cites W2054645658 @default.
• W2045842973 cites W2056392157 @default.
• W2045842973 cites W2056536510 @default.
• W2045842973 cites W2056700263 @default.
• W2045842973 cites W2056941002 @default.
• W2045842973 cites W2063930866 @default.
• W2045842973 cites W2066469720 @default.
• W2045842973 cites W2066793094 @default.
• W2045842973 cites W2070333780 @default.
• W2045842973 cites W2072829874 @default.
• W2045842973 cites W2073294434 @default.
• W2045842973 cites W2074345155 @default.
• W2045842973 cites W2075231444 @default.
• W2045842973 cites W2077974641 @default.
• W2045842973 cites W2078209355 @default.
• W2045842973 cites W2080753820 @default.
• W2045842973 cites W2084621620 @default.
• W2045842973 cites W2084675450 @default.
• W2045842973 cites W2086916601 @default.
• W2045842973 cites W2091469891 @default.
• W2045842973 cites W2092228908 @default.
• W2045842973 cites W2093789978 @default.
• W2045842973 cites W2095312012 @default.
• W2045842973 cites W2097302660 @default.
• W2045842973 cites W2098142712 @default.
• W2045842973 cites W2099625911 @default.
• W2045842973 cites W2107573189 @default.

• next