Rooze Jurjen 0000-0001-5429-9878 Leibniz Institute for Baltic Sea Research, Warnemünde IOW https://www.io-warnemuende.de/en_index.html https://ror.org/03xh9nq73 Sansjofre Pierre pierre.sans-jofre@mnhn.fr Sorbonne Université, Paris, France https://ror.org/02en5vm52 Meile Christof cmeile@uga.edu University of Georgia https://ror.org/00te3t702 Böttcher Michael Ernst michael.boettcher@io-warnemuende.de 0000-0002-8877-0303 Leibniz Institute for Baltic Sea Research, Warnemünde IOW https://www.io-warnemuende.de/en_index.html https://ror.org/03xh9nq73 Jouet Gwenael gwenael.jouet@ifremer.fr 0000-0002-2178-2115 Ifremer https://www.ifremer.fr/fr https://ror.org/044jxhp58 Pastor Lucie 0000-0001-9732-8907 2026 Sediment and pore water geochemistry of reference core MOZ4-CS03 offshore northwest Madagascar (PAMELA-MOZ4, 2015) dataset https://doi.pangaea.de/10.1594/PANGAEA.995256 2026-07-09T13:09:38 This dataset contains biogeochemical solid-phase and pore water data from sediment core MOZ4-CS03 (named S2-PE in the publication cited below), collected on 14 November 2015 during the PAMELA-MOZ4 oceanographic cruise offshore northwest Madagascar. Core MOZ4-CS03 represents a non-seep reference site and was investigated to provide a baseline for comparison with methane-seep sediments from nearby pockmark site MOZ4-CSF04, enabling assessment of the impact of fluid seepage on sediment biogeochemistry and diagenetic processes. Solid-phase parameters comprise total organic carbon (TOC), stable carbon isotopes of organic matter, reactive iron phases (dithionite-extractable Fe), pyrite content (FeS2) and its sulfur isotopic composition (δ34S), carbonate mineralogy (calcite, high Mg-calcite, aragonite), and stable carbon and oxygen isotopes of background carbonates. Bulk elemental concentrations of Fe and Al were determined by X-ray fluorescence (XRF). Pore water analyses include dissolved methane (CH4), sulfate (SO4), sulfide (H2S), dissolved iron (Fe), manganese (Mn), calcium (Ca), magnesium (Mg), total alkalinity (TA), and stable carbon isotopic compositions of methane and dissolved inorganic carbon (DIC). The dataset also includes porosity measurements. Rooze Jurjen 0000-0001-5429-9878 Sansjofre Pierre pierre.sans-jofre@mnhn.fr Meile Christof cmeile@uga.edu Böttcher Michael Ernst michael.boettcher@io-warnemuende.de 0000-0002-8877-0303 Jouet Gwenael gwenael.jouet@ifremer.fr 0000-0002-2178-2115 Pastor Lucie 0000-0001-9732-8907 2026 Reversible anaerobic oxidation of methane, carbon assimilation, and mineral authigenesis in pockmark sediments over the past 40 kyr: Insights from C–S–O isotopes and diagenetic modelling journal article Geochimica et Cosmochimica Acta 424 https://doi.org/10.1016/j.gca.2026.04.020 361-376 Canfield Donald E Raiswell Robert Westrich Joseph T Reaves Christopher M Berner Robert A 1986 The use of chromium reduction in the analysis of reduced inorganic sulfur in sediments and shales journal article Chemical Geology 54 (1-2) https://doi.org/10.1016/0009-2541(86)90078-1 149-155 Cline J D 1969 Spectrophotometric determination of hydrogen sulfide in natural waters journal article Limnology and Oceanography 14 https://doi.org/10.4319/lo.1969.14.3.0454 454-458 Kostka Joel E Luther Georg W 1995 Seasonal cycling of Fe in saltmarsh sediments journal article Biogeochemistry 29(2) https://doi.org/10.1007/BF00000230 45.9563 45.9563 -15.361417 -15.361417 45.9563 -15.361417 2015-11-14T00:00:00 2015-11-14T00:00:00 0.0 20.41 vertical profile MOZ4-CS03 S2-PE -15.361417 45.9563 Indian Ocean 2015-11-14T00:00:00 PAMELA-MOZ4 PAMELA-MOZ4 2015-11-12T00:00:00 2015-11-12 2015-12-22T00:00:00 2015-12-22 Pourquoi Pas ? (2005) https://www.ifremer.fr/fr/flotte-oceanographique-francaise/decouvrez-les-navires-de-la-flotte-oceanographique-francaise/le-pourquoi-pas Pourquoi Pas ? (2005) https://www.ifremer.fr/fr/flotte-oceanographique-francaise/decouvrez-les-navires-de-la-flotte-oceanographique-francaise/le-pourquoi-pas 694 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Rooze Jurjen 0000-0001-5429-9878 Event Optional event label Event 2 Rooze Jurjen 0000-0001-5429-9878 Event 2 DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length Rooze Jurjen 0000-0001-5429-9878 Core processing software (CINEMA2) Depth sed [m] Carbon, organic, total TOC % carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic total https://www.oxforddictionaries.com/definition/american_english/total Dimensionless Ratio ψ Cavity ring-down spectroscopy (CRDS) isotopic water analyzer, Picarro Inc., L2130-i; coupled to a Combustion Module (CM), Picarro Inc., A020 Rooze Jurjen 0000-0001-5429-9878 TOC [%] δ13C, total organic carbon δ13C TOC ‰ PDB δ13C http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes total organic carbon TOC Cavity ring-down spectroscopy (CRDS), isotopic water analyzer, Picarro Inc., L2101-i Rooze Jurjen 0000-0001-5429-9878 vs. VPDB δ13C TOC [‰ PDB] Iron, dithionite extractable FeD % Dimensionless Ratio ψ Inductively coupled plasma-atomic emission spectrometer (ICP-AES), HORIBA, ULTIMA 2 Rooze Jurjen 0000-0001-5429-9878 FeD [%] Iron disulfide FeS2 % Chromium reducible sulfur extraction according to Canfield et al. (1986) https://doi.org/10.1016/0009-2541(86)90078-1 Rooze Jurjen 0000-0001-5429-9878 FeS2 [%] δ34S, FeS2 δ34S FeS2 ‰ CDT δ34S http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes Elemental analyzer - isotope ratio mass spectrometer (EA-IRMS), Europa Scientific, ANCA-SL/20–20 Rooze Jurjen 0000-0001-5429-9878 VCDT δ34S FeS2 [‰ CDT] Calcite Cal % http://www.mindat.org/min-859.html calcite http://purl.obolibrary.org/obo/CHEBI_46719 Dimensionless Ratio ψ X-Ray Diffractometer, Bruker Corporation, D8 ADVANCE Rooze Jurjen 0000-0001-5429-9878 Cal [%] High magnesium calcite HMC % Dimensionless Ratio ψ X-Ray Diffractometer, Bruker Corporation, D8 ADVANCE Rooze Jurjen 0000-0001-5429-9878 HMC [%] Aragonite Arg % http://www.mindat.org/min-307.html aragonite http://purl.obolibrary.org/obo/CHEBI_52239 Dimensionless Ratio ψ X-Ray Diffractometer, Bruker Corporation, D8 ADVANCE Rooze Jurjen 0000-0001-5429-9878 Arg [%] δ13C δ13C ‰ PDB δ13C http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes Isotope ratio mass spectrometer (IRMS), Thermo Finnigan, MAT 253; coupled with Gas bench II, Thermo Fisher Scientific Thermo Fisher Scientific MAT 253 isotope ratio mass spectrometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL2142/ Rooze Jurjen 0000-0001-5429-9878 vs. VPDB, background carbonate δ13C [‰ PDB] δ18O δ18O ‰ δ18O http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes Isotope ratio mass spectrometer (IRMS), Thermo Finnigan, MAT 253; coupled with Gas bench II, Thermo Fisher Scientific Thermo Fisher Scientific MAT 253 isotope ratio mass spectrometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL2142/ Rooze Jurjen 0000-0001-5429-9878 vs. VPDB, background carbonate δ18O [‰] Iron Fe % Dimensionless Ratio ψ Wavelength Dispersive X-Ray Fluorescence (WDXRF), Bruker Corporation, S8 Tiger Rooze Jurjen 0000-0001-5429-9878 Fe [%] Aluminium Al % aluminium Al Dimensionless Ratio ψ Wave-length dispersive X-ray fluorescence spectroscopy (WD-XRF) Rooze Jurjen 0000-0001-5429-9878 Al [%] Methane, dissolved CH4 diss mmol/l methane http://purl.obolibrary.org/obo/CHEBI_16183 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration Cavity ring-down spectrometer (CRDS), Picarro, G2201-i Rooze Jurjen 0000-0001-5429-9878 CH4 diss [mmol/l] Sulfate, dissolved [SO4]2- diss mmol/l sulfate http://purl.obolibrary.org/obo/CHEBI_16189 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration Ion chromatograph, Dionex Corporation, ICS-5000 Rooze Jurjen 0000-0001-5429-9878 [SO4]2- diss [mmol/l] Hydrogen sulfide, dissolved H2S diss mmol/l hydrogen sulfide http://purl.obolibrary.org/obo/CHEBI_16136 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration Cline method according to Cline (1969) https://doi.org/10.4319/lo.1969.14.3.0454 Rooze Jurjen 0000-0001-5429-9878 H2S diss [mmol/l] Iron, dissolved Fe diss µmol/l dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration Inductively coupled plasma mass spectrometer (ICP-MS), ThermoFisher Scientific, Element XR Rooze Jurjen 0000-0001-5429-9878 Fe diss [µmol/l] Alkalinity, total AT mmol(eq)/l total https://www.oxforddictionaries.com/definition/american_english/total Molar Concentration Automatic titrator, Metrohm, 888 Titrando coupled with pH electrode Rooze Jurjen 0000-0001-5429-9878 AT [mmol(eq)/l] Manganese, dissolved Mn diss µmol/l manganese Mn https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18291 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration Inductively coupled plasma mass spectrometer (ICP-MS), ThermoFisher Scientific, Element XR Rooze Jurjen 0000-0001-5429-9878 Mn diss [µmol/l] Calcium, dissolved Ca diss mmol/l calcium Ca https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:22984 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration Ion chromatograph, Thermo Scientific, Dionex ICS-5000 Rooze Jurjen 0000-0001-5429-9878 Ca diss [mmol/l] Magnesium, dissolved Mg diss mmol/l magnesium dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration Ion chromatograph, Dionex Corporation, ICS-5000 Rooze Jurjen 0000-0001-5429-9878 Mg diss [mmol/l] Porosity, total Poros total https://en.wikipedia.org/wiki/Porosity porosity http://purl.obolibrary.org/obo/PATO_0000973 total https://www.oxforddictionaries.com/definition/american_english/total Gravimetric analysis Rooze Jurjen 0000-0001-5429-9878 Gravimetric determination from wet and freeze-dried sediment weights Poros total CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels carbonates Diagenesis Gas seeps iron Madagascar Marine sediment Methane pore water Radiocarbon Stable isotopes Sulfur author100783 author110693 author117461 author22955 author23453 author23454 author23455 author23456 author26245 author27981 author28867 author36775 author44956 author61833 basis4270 campaign3405221 curlevel30 event3405222 geocode1 geocode1599 geocode1600 geocode1601 inst20622 inst21272 inst21947 inst49 journal10608 journal2142 journal3311 journal6009 license21 method12302 method14065 method18697 method18727 method19226 method19372 method19373 method19374 method19375 method19376 method19377 method19378 method19406 method6236 method6787 method9843 param158495 param1586 param160303 param161892 param17863 param178882 param2063 param2235 param505253 param512592 param564469 param564470 param564471 param564472 param564473 param67 param6844 param7375 param75 param762 param77 pi110693 ref139839 ref54647 ref80800 ref95875 term1073089 term1073093 term1073094 term1073131 term1073159 term1073219 term1073320 term1073493 term1073614 term1073620 term1073771 term20611 term38253 term38263 term38303 term38477 term38520 term38521 term40136 term4047470 term40665 term41056 term43794 term43863 term44030 term44419 term47444 term49538 term49542 term49806 term50629 term50973 term51786 term54884 term672 term68302 term732 topotype3