Modern accumulation rates and sources of organic carbon in the NE Gulf of Cádiz (SW Iberian Peninsula)

Roberta Guerra,Enrique Garcia-Luque,Serena Righi

doi:10.1007/s10967-015-3991-y

Modern accumulation rates and sources of organic carbon in the NE Gulf of Cádiz (SW Iberian Peninsula)

Roberta Guerra, Enrique Garcia-Luque + Show 1 more

https://doi.org/10.1007/s10967-015-3991-y

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Journal: Journal of Radioanalytical and Nuclear Chemistry	Publication Date: Feb 28, 2015
Citations: 49

Affiliation: University of Bologna

#Gulf Of Cadiz #Modern Accumulation Rates + Show 8 more

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Abstract

Organic carbon (OC) content, elemental (C/N) and isotopic (δ 13C) composition of organic matter (OM) constrain relative contributions from both marine and terrestrial sources to modern sediments in the NE Gulf of Cadiz (GoC) shelf. C/N and (δ 13C) indicate a transition from a dominantly marine to a terrestrial input of OM deposited in Bay of Cadiz and the Guadalquivir prodelta. OC and mass accumulation rates (MARs, based on bulk density and 210Pb-derived sediment MAR) suggest that labile OM from primary productivity accounts for the low OC content and burial rates in sediments in the NE GoC shelf.

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