@misc{martin1993canc, author={William R {Martin} and Daniel C {McCorkle}}, title={{Carbon and nitrogen content of marine pore waters}}, year={1993}, doi={10.1594/PANGAEA.734088}, url={https://doi.org/10.1594/PANGAEA.734088}, note={Supplement to: Martin, WR; McCorkle, DC (1993): Dissolved organic carbon concentrations in marine pore waters determined by high-temperature oxidation. Limnology and Oceanography, 38(7), 1464-1479, https://doi.org/10.4319/lo.1993.38.7.1464}, abstract={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.}, type={data set}, publisher={PANGAEA} }