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Assessment of C, N and Si isotopes as tracers of past ocean nutrient and carbon cycling ArchiMer
Farmer, Jesse; Hertzberg, Jennifer; Cardinal, Damien; Fietz, Susanne; Hendry, Katharine; Jaccard, Sam; Paytan, Adina; Rafter, Patrick; Ren, Haojia; Somes, Christopher; Sutton, Jill; Geotraces Pages Biological Productivity Working Group Members,.
Biological productivity in the ocean directly influences the partitioning of carbon between the atmosphere and ocean interior, thereby controlling the distributions of many elements and their isotopes in the ocean. Through this carbon cycle feedback, changing ocean productivity has long been hypothesized as a key pathway for modulating past atmospheric carbon dioxide levels and hence global climate. To reconstruct climate impacts from temporal changes in paleoproductivity, robust proxies are needed to test the connection between past ocean productivity, nutrient biogeochemistry, ocean circulation and climate. Here we compile water column carbon (C), nitrogen (N) and silicon (Si) stable isotopes from GEOTRACES-era data in four key ocean regions to review...
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Ano: 2020 URL: https://archimer.ifremer.fr/doc/00649/76114/77076.pdf
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