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Figure F7. Relationships between the carbon isotopic composition of particulate organic carbon (POC), nitrogen isotopic composition of total particulate nitrogen (PN), and the POC/TN molar ratio in sediment samples, Site U1363. Suspended particle data are from seawater collected from a water column depth of ~2600 m above Site U1362 located ~50 km northeast of Site U1363 (H.-T. Lin et al., unpubl. data, 2011). Data from plant debris, zooplankton, and phytoplankton are from Keil and Fogel (2001). Black dashed line = Redfield ratio.

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