Matches in SemOpenAlex for { <https://semopenalex.org/work/W2474242575> ?p ?o ?g. }
- W2474242575 endingPage "220" @default.
- W2474242575 startingPage "210" @default.
- W2474242575 abstract "During the last decade, gypsum has been discovered widely in marine methane hydrate-bearing sediments. However, whether this gypsum is an in-situ authigenic precipitate remains controversial. The GMGS2 expedition carried out in 2013 by the Guangzhou Marine Geological Survey (GMGS) in the northern South China Sea provided an excellent opportunity for investigating the formation of authigenic minerals and, in particular, the relationship between gypsum and methane hydrate. In this contribution, we analyzed the morphology and sulfur isotope composition of gypsum and authigenic pyrite as well as the carbon and oxygen isotopic compositions of authigenic carbonate in a drillcore from Site GMGS2–08. These methane-derived carbonates have characteristic carbon and oxygen isotopic compositions (δ13C: −57.9‰ to −27.3‰ VPDB; δ18O: +1.0‰ to +3.8‰ VPDB) related to upward seepage of methane following dissociation of underlying methane hydrates since the Late Pleistocene. Our data suggest that gypsum in the sulfate-methane transition zone (SMTZ) of this core precipitated as in-situ authigenic mineral. Based on its sulfur isotopic composition, the gypsum sulfur is a mixture of sulfate derived from seawater and from partial oxidation of authigenic pyrite. Porewater Ca2+ ions for authigenic gypsum were likely generated from carbonate dissolution through acidification produced by oxidation of authigenic pyrite and ion exclusion during methane hydrate formation. This study thus links the formation mechanism of authigenic gypsum with the oxidation of authigenic pyrite and evolution of underlying methane hydrates. These findings suggest that authigenic gypsum may be a useful proxy for recognition of SMTZs and methane hydrate zones in modern and ancient marine methane hydrate geo-systems." @default.
- W2474242575 created "2016-07-22" @default.
- W2474242575 creator A5040118513 @default.
- W2474242575 creator A5045207377 @default.
- W2474242575 creator A5066626792 @default.
- W2474242575 creator A5070746201 @default.
- W2474242575 creator A5075544463 @default.
- W2474242575 date "2016-09-01" @default.
- W2474242575 modified "2023-09-27" @default.
- W2474242575 title "Formation mechanism of authigenic gypsum in marine methane hydrate settings: Evidence from the northern South China Sea" @default.
- W2474242575 cites W1491030639 @default.
- W2474242575 cites W1612517152 @default.
- W2474242575 cites W1791340232 @default.
- W2474242575 cites W1869173989 @default.
- W2474242575 cites W1973392970 @default.
- W2474242575 cites W1981757634 @default.
- W2474242575 cites W1981777626 @default.
- W2474242575 cites W1986123015 @default.
- W2474242575 cites W1989607453 @default.
- W2474242575 cites W1990078065 @default.
- W2474242575 cites W1990648220 @default.
- W2474242575 cites W1995102544 @default.
- W2474242575 cites W1996766054 @default.
- W2474242575 cites W2004858692 @default.
- W2474242575 cites W2005601255 @default.
- W2474242575 cites W2006895540 @default.
- W2474242575 cites W2009402263 @default.
- W2474242575 cites W2009778629 @default.
- W2474242575 cites W2011371926 @default.
- W2474242575 cites W2011823446 @default.
- W2474242575 cites W2014956713 @default.
- W2474242575 cites W2015630118 @default.
- W2474242575 cites W2018136176 @default.
- W2474242575 cites W2028906034 @default.
- W2474242575 cites W2032817239 @default.
- W2474242575 cites W2035006759 @default.
- W2474242575 cites W2036342458 @default.
- W2474242575 cites W2041166777 @default.
- W2474242575 cites W2052003117 @default.
- W2474242575 cites W2054380694 @default.
- W2474242575 cites W2056700263 @default.
- W2474242575 cites W2057707895 @default.
- W2474242575 cites W2068608216 @default.
- W2474242575 cites W2072419926 @default.
- W2474242575 cites W2074986071 @default.
- W2474242575 cites W2077384023 @default.
- W2474242575 cites W2080359410 @default.
- W2474242575 cites W2081859087 @default.
- W2474242575 cites W2082250875 @default.
- W2474242575 cites W2082691260 @default.
- W2474242575 cites W2083611679 @default.
- W2474242575 cites W2090159222 @default.
- W2474242575 cites W2091755534 @default.
- W2474242575 cites W2092227304 @default.
- W2474242575 cites W2094315404 @default.
- W2474242575 cites W2099837456 @default.
- W2474242575 cites W2106450515 @default.
- W2474242575 cites W2109103681 @default.
- W2474242575 cites W2109133612 @default.
- W2474242575 cites W2115491599 @default.
- W2474242575 cites W2115901915 @default.
- W2474242575 cites W2116560119 @default.
- W2474242575 cites W2120362144 @default.
- W2474242575 cites W2122547600 @default.
- W2474242575 cites W2129635661 @default.
- W2474242575 cites W2138060941 @default.
- W2474242575 cites W2144945596 @default.
- W2474242575 cites W2150279884 @default.
- W2474242575 cites W2151319453 @default.
- W2474242575 cites W2169157473 @default.
- W2474242575 cites W2182725300 @default.
- W2474242575 cites W2339711361 @default.
- W2474242575 cites W366007583 @default.
- W2474242575 cites W2013432158 @default.
- W2474242575 doi "https://doi.org/10.1016/j.dsr.2016.06.010" @default.
- W2474242575 hasPublicationYear "2016" @default.
- W2474242575 type Work @default.
- W2474242575 sameAs 2474242575 @default.
- W2474242575 citedByCount "33" @default.
- W2474242575 countsByYear W24742425752017 @default.
- W2474242575 countsByYear W24742425752018 @default.
- W2474242575 countsByYear W24742425752019 @default.
- W2474242575 countsByYear W24742425752020 @default.
- W2474242575 countsByYear W24742425752021 @default.
- W2474242575 countsByYear W24742425752022 @default.
- W2474242575 countsByYear W24742425752023 @default.
- W2474242575 crossrefType "journal-article" @default.
- W2474242575 hasAuthorship W2474242575A5040118513 @default.
- W2474242575 hasAuthorship W2474242575A5045207377 @default.
- W2474242575 hasAuthorship W2474242575A5066626792 @default.
- W2474242575 hasAuthorship W2474242575A5070746201 @default.
- W2474242575 hasAuthorship W2474242575A5075544463 @default.
- W2474242575 hasConcept C100402318 @default.
- W2474242575 hasConcept C104577883 @default.
- W2474242575 hasConcept C115393850 @default.
- W2474242575 hasConcept C127313418 @default.
- W2474242575 hasConcept C151730666 @default.
- W2474242575 hasConcept C17409809 @default.