publication . Article . 2005

CARBON WATER MEASUREMENTS

Druffel, E. R. M; Bauer, J. E; Griffin, S.;
Open Access
  • Published: 01 Mar 2005 Journal: Geochemistry, Geophysics, Geosystems, volume 6, pages n/a-n/a (issn: 1525-2027, Copyright policy)
  • Publisher: American Geophysical Union (AGU)
  • Country: United States
Abstract
We report concentrations and isotope measurements (radiocarbon and stable carbon) of dissolved inorganic carbon (DIC) and suspended particulate organic carbon (POC) in waters collected from the mouth of the Amazon River and the North Brazil Current. Samples were collected in November 1991, when the Amazon hydrograph was at its annual minimum and the North Brazil Current had retroflected into the equatorial North Atlantic. The DIC Δ14C results revealed postbomb carbon in river and ocean waters, with slightly higher values at the river mouth. The low DIC δ13C signature of the river end-member (−11‰) demonstrates that about half of the DIC originated from the remin...
Subjects
Medical Subject Headings: hemic and lymphatic diseases
free text keywords: Physical Sciences and Mathematics, Amazon, carbon cycling, POC, radiocarbon, total CO2, Geochemistry and Petrology, Geophysics, Particulates, Remineralisation, Organic matter, chemistry.chemical_classification, chemistry, Carbon cycle, Oceanography, Sediment, River mouth, geography.geographical_feature_category, geography, Amazon rainforest, Dissolved organic carbon, Hydrology, Geology
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publication . Article . 2005

CARBON WATER MEASUREMENTS

Druffel, E. R. M; Bauer, J. E; Griffin, S.;