https://doi.pangaea.de/10.1594/PANGAEA.997430Knoke, MelinaMelinaKnoke0000-0002-5270-8487Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität OldenburgDittmar, ThorstenThorstenDittmar0000-0002-3462-0107Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität OldenburgNiggemann, JuttaJuttaNiggemann0000-0003-1237-9233Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität OldenburgWagner, SashaSashaWagnerRensselaer Polytechnic InstituteFörster, OliverOliverFörsterInstitute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität OldenburgLeclerc, Ahlyia J.Ahlyia J.LeclercRensselaer Polytechnic InstituteUlber, Ina IdaIna IdaUlberInstitute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität OldenburgGünther, JanaJanaGüntherInstitute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität OldenburgSimon, HeikeHeikeSimonInstitute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität OldenburgSeidel, MichaelMichaelSeidel0000-0003-0934-1939Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität OldenburgPANGAEA2026Dissolved Black CarbonDissolved Organic MatterGuaymas Basinhydrothermal mobilizationIODPLaboratory experimentporewaterEvent labelType of studySample code/labelBatchTreatment: temperatureReplicateSample sourceBenzenehexacarboxylic acidBenzenepentacarboxylic acidBenzenetetracarboxylic acidBlack carbon, dissolvedBenzenepentacarboxylic acid/Benzenehexacarboxylic acid ratioBenzenepentacarboxylic acid/Benzenetetracarboxylic acid ratioLaboratory experimentSolid‑phase extracted (SPE) of filtered seawater according to Green et al. 2014Reverse osmosis isolation of filtered river water (IHSS protocol) according to Serkiz and Perdue (1990)Benzene polycarboxylic acid method (BPCA); measured with Ultra Performance Liquid Chromatograph (UPLC), Waters Corporation, ACQUITYCalculated according to Stubbins et al. (2015)Calculated2009-09-24T00:00:00/2025-09-18T00:00:00Dataset10.1594/PANGAEA.974052https://doi.pangaea.de/10.1594/PANGAEA.997437https://doi.pangaea.de/10.1594/PANGAEA.99743810.1016/j.orggeochem.2008.01.01510.1016/j.marchem.2014.01.01210.1016/j.cageo.2005.11.00910.1016/0043-1354(90)90142-S10.3389/feart.2015.0006310.1002/lom3.10219585 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalData access is restricted (moratorium, sensitive data, license constraints)Dissolved black carbon (DBC) is a condensed aromatic fraction of dissolved organic matter (DOM) and an important component of the marine carbon cycle. Hydrothermal systems have been suggested as a potential source of DBC to the deep ocean, but the mobilization and origin of DBC in organic-rich hydrothermal sediments remain poorly constrained.
This dataset contains data from heating experiments performed to investigate the temperature-dependent mobilization of dissolved black carbon (DBC) from marine and terrestrial dissolved organic matter (DOM) reference materials under controlled aqueous heating conditions. The experiments were conducted with solid-phase extracted (SPE) marine DOM from North Equatorial Pacific Intermediate Water (NEqPIW), sampled and isolated at the Natural Energy Laboratory of Hawaii Authority (NELHA) as described by Green et al. (2014), and Suwannee River Natural Organic Matter (SRNOM), a terrestrial DOM reference material provided by the International Humic Substances Society (IHSS) and fisrt described by Serkiz & Perdue (1990). The reference materials were dissolved in ultrapure water and afterwards subjected to temperature treatments of 25, 80, 100, and 180 °C. DBC was determined using the benzene polycarboxylic acid (BPCA) method after Dittmar et al. (2008) and Wagner et al., (2017). BPCAs were quantified by ultra-performance liquid chromatography (UPLC), and DBC concentrations were calculated from benzene pentacarboxylic acid (B5CA) and benzene hexacarboxylic acid (B6CA) concentrations according to Stubbins et al. (2015). The dataset includes benzene tetracarboxylic acid (B4CA), B5CA, and B6CA concentrations, BPCA ratios, and calculated DBC concentrations for the different temperature treatments.-156.06678.16719619.733353.152839Oldenburg, GermanyTroy, New York, USAKailua‑Kona, Hawaii, USASuwannee River, Georgia, USADeutsche Forschungsgemeinschaft, Bonnhttps://doi.org/10.13039/501100001659447583997IODP GUAYMAS BASIN - The biogeochemistry of dissolved organic matter in hydrothermal Guaymas Basin sediments