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(Appendix 5) Concentrations of CL and IPL-derived isoGDGTs normalized to OC and BIT values for SPM

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(Table 2) Bulk organic geochemical data of SPM collected in the Tagus River basin

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Hydochemistry measured on water bottle samples during TYRO cruise NIOP-D2

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Hydochemistry measured on water bottle samples during TYRO cruise NIOP-B2

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Physical oceanography during TYRO cruise NIOP-B0/C0

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(Table S1) Phytoplankton composition across the tropical North Atlantic

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Hydochemistry measured on water bottle samples during TYRO cruise NIOP-B0/C0

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Physical oceanography, CFC-11 and CFC-12 measured on water bottle samples during Maria S. Merian cruise MSM27

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(Table S2) Diazotroph enumeration data across the tropical North Atlantic

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(Table S3) Glycolipid concentration data from water column across the tropical North Atlantic