Sedimentary Black Carbon Data from Sediment Core GeoB6516-3

File: GeoB6516-3_BC

Parameter names, descriptions, units

Depth, Depth in the sediment core, meters below sea floor (mbsf)Age, Age from age model, thosand years before present (kyr BP)Sed. Rate, Sedimentation rate, cm kyr$^{-1}$TOC_flux, Sedimentation flux of total organic carbon (TOC), mg cm$^{-2}$ kyr$^{-1}$BPCA-BC_dw, Dry weight black carbon concentrations using the Stubbins et al (2015) conversion factor, mg g$^{-1}$ d.w.BPCA-BC_dw_sd, Standard deviation of dry weight black carbon concentrations using the Stubbins et al (2015) conversion factor, mg g$^{-1}$ d.w.BPCA-BC_toc, Black carbon concentrations using the Stubbins et al (2015) conversion factor normalized to the TOC, mg g$^{-1}$ TOCBPCA-BC_toc_sd, Standard deviation of black carbon concentrations using the Stubbins et al (2015) conversion factor normalized to the TOC, mg g$^{-1}$ TOCB6CA_dw, Dry weight concentations of benzenehexacarboxylic acid (B6CA), mg g$^{-1}$ d.w.B6CA_dw_sd, Standard devation of dry weight concentations of benzenehexacarboxylic acid (B6CA), mg g$^{-1}$ d.w.B5CA_dw, Dry weight concentations of benzenepentacarboxylic acid (B5CA), mg g$^{-1}$ d.w.B5CA_dw_sd, Standard devation of dry weight concentations of benzenepentacarboxylic acid (B5CA), mg g$^{-1}$ d.w.B6CA_toc, Concentations of benzenehexacarboxylic acid (B6CA) normailzed to TOC, mg g$^{-1}$ TOCB6CA_toc_sd, Standard devation of concentations of benzenehexacarboxylic acid (B6CA) normailzed to TOC, mg g$^{-1}$ TOCB5CA_toc, Concentations of benzenepentacarboxylic acid (B5CA) normailzed to TOC, mg g$^{-1}$ TOCB5CA_toc_sd, Standard devation of concentations of benzenepentacarboxylic acid (B5CA) normailzed to TOC, mg g$^{-1}$ TOCδ$^{13}$C-B6CA, Stable carbon isopte values of B6CA, ‰δ$^{13}$C-B5CA, Stable carbon isopte values of B5CA, ‰BPCA-BC_flux, Sedimentation flux of BPCAs using the using the Stubbins et al (2015) conversion factor, mg cm$^{-2}$ kyr$^{-1}$B5CA_flux, Sedimentation flux of B5CA, mg cm$^{-2}$ kyr$^{-1}$B6CA_flux, Sedimentation flux of B6CA, mg cm$^{-2}$ kyr$^{-1}$CTO-BC_dw, Dry weight concentations of black carbon using the chemothermal oxidation of organic carbon at 375 ˚C method (CTO-375), mg g$^{-1}$ d.w.CTO-BC_dw_sd, Standard devation of dry weight concentations of black carbon using the CTO-375 method, mg g$^{-1}$ d.w.CTO-BC_toc, Concentation of black carbon using the CTO-375 method normailzed to TOC, mg g$^{-1}$ TOCCTO-BC_toc_sd, Standard devation of concentation of black carbon using the CTO-375 method normailzed to TOC, mg g$^{-1}$ TOCδ$^{13}$C-CTO, Stable carbon isopte values of black carbon using the CTO-375 method, ‰CTO-BC_flux, Sedimentation flux of black carbon using the CTO-375 method, mg cm$^{-2}$ kyr$^{-1}$NMR-BC_dw, Dry weight concentations of black carbon determined via $^{13}$C nuclear magnetic resonance (NMR) combined with a molecular mixing model (MMM), mg g$^{-1}$ d.w.NMR-BC_dw_sd, Standard devation of dry weight concentations of black carbon determined via NMR combined with a MMM, mg g$^{-1}$ d.w.NMR-BC_toc, Concentations of black carbon determined via NMR combined with a MMM normailzed to TOC, mg g$^{-1}$ TOCNMR-BC_toc_sd, Standard devation of concentations of black carbon determined via NMR combined with a MMM normailzed to TOC, mg g$^{-1}$ TOCalkyl/O-alkyl, Ration between the alkyl and O-alkyl sections of the NMR spectrum, unitlessRDR, “resistance to decomposition ratio” (RDR) calculated as the ratio of (alkyl + aromatic + phenolic peak areas) / (O-alkyl + carboxyl + carbonyl C peak areas) (Castañeda-Gómez et al., 2023), unitlessNMR-BC_flux, Sedimentation flux of black carbon determined via NMR combined with a MMM, mg cm$^{-2}$ kyr$^{-1}$TG-DSC-BC, The percent of black carbon determined by thermogravimetry-differential scanning calorimetry of the TOC, % BC TOC$^{-1}$∑16_PAH_dw, Dry weight concentation of the sum of 16 PAHs, mg g$^{-1}$ d.w.∑16_PAH_toc, Concentation of the sum of 16 PAHs normailzed to TOC, mg g$^{-1}$ TOC

File: GeoB6516-3_PAHs_dw

Dry weight concentations of the indvidual PAHs.

File: GeoB6516-3_PAHs_toc

Concentations of the indvidual PAHs normailzed to TOC.