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Kao, S. -j.; Hilton, R. G.; Selvaraj, K.; Dai, M.; Zehetner, F.; Huang, J. -c.; Hsu, S.-c.; Sparkes, R.; Liu, J. T.; Lee, T. -y.; Yang, J. -y. T.; Galy, A.; Xu, X.; Hovius, N.. |
Geological sequestration of atmospheric carbon dioxide (CO2) can be achieved by the erosion of organic carbon (OC) from the terrestrial biosphere and its burial in long-lived marine sediments. Rivers on mountain islands of Oceania in the western Pacific have very high rates of OC export to the ocean, yet its preservation offshore remains poorly constrained. Here we use the OC content (Corg, %), radiocarbon (Δ 14Corg) and stable isotope (δ13Corg) composition of sediments offshore Taiwan to assess the fate of terrestrial OC, using surface, sub-surface and Holocene sediments. We account for rock-derived OC to assess the preservation of OC eroded from the terrestrial biosphere and the associated CO2 sink during flood discharges (hyperpycnal river plumes) and... |
Tipo: Text |
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Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00263/37447/35706.pdf |
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