Carbon and nitrogen content of marine pore waters

doi:doi:10.1594/PANGAEA.734088

Carbon and nitrogen content of marine pore waters

We have developed sampling methods and an analytical system to determine the concentration of dissolved organic C (DOC) in marine pore waters. Our analytical approach is a modification of recently developed high-temperature, Pt-catalyzed oxidation methods; it uses Chromatographic trapping of the DOC-derived CO2 followed by reduction to CH4 and flame ionization detection. Sampling experiments with nearshore sediments indicate that pore-water separation by whole-core squeezing causes artificially elevated DOC concentrations, while pore-water recovery by sectioning and centrifugation does not appear to introduce DOC artifacts. Results from a set of northwestern Atlantic continental slope cores suggest that net DOC production accounts for >50% of the organic C that is recycled at the sediment-water interface.

Data and Resources

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Cite this as

Martin, William R, McCorkle, Daniel C (1993). Dataset: Carbon and nitrogen content of marine pore waters. https://doi.org/10.1594/PANGAEA.734088

DOI retrieved: 1993

Additional Info

Field	Value
Imported on	November 30, 2024
Last update	November 30, 2024
License	CC-BY-3.0
Source	https://doi.org/10.1594/PANGAEA.734088
Author	Martin, William R
Given Name	William R
Family Name	Martin
More Authors	McCorkle, Daniel C
Source Creation	1993
Publication Year	1993
Resource Type	application/zip - filename: Martin_McCorkle_1993
Subject Areas	Name: Oceans
Related Identifiers	Title: Dissolved organic carbon concentrations in marine pore waters determined by high-temperature oxidation Identifier: https://doi.org/10.4319/lo.1993.38.7.1464 Type: DOI Relation: IsSupplementTo Year: 1993 Source: Limnology and Oceanography Authors: Martin William R , McCorkle Daniel C .