Rooze, Jurjen; Sansjofre, Pierre; Meile, Christof; Böttcher, Michael Ernst; Jouet, Gwenael; Pastor, Lucie (2026): Sediment and pore water geochemistry of reference core MOZ4-CS03 offshore northwest Madagascar (PAMELA-MOZ4, 2015) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995256 (DOI registration in progress)
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2026-07-09
Abstract:
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.
Keyword(s):
Supplement to:
Rooze, Jurjen; Sansjofre, Pierre; Meile, Christof; Böttcher, Michael Ernst; Jouet, Gwenael; Pastor, Lucie (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. Geochimica et Cosmochimica Acta, 424, 361-376, https://doi.org/10.1016/j.gca.2026.04.020
References:
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. Chemical Geology, 54 (1-2), 149-155, https://doi.org/10.1016/0009-2541(86)90078-1
Cline, J D (1969): Spectrophotometric determination of hydrogen sulfide in natural waters. Limnology and Oceanography, 14, 454-458, https://doi.org/10.4319/lo.1969.14.3.0454
Kostka, Joel E; Luther, Georg W (1995): Seasonal cycling of Fe in saltmarsh sediments. Biogeochemistry, 29(2), https://doi.org/10.1007/BF00000230
Coverage:
Latitude: -15.361417 * Longitude: 45.956300
Date/Time Start: 2015-11-14T00:00:00 * Date/Time End: 2015-11-14T00:00:00
Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 20.410 m
Event(s):
MOZ4-CS03 (S2-PE) * Latitude: -15.361417 * Longitude: 45.956300 * Date/Time: 2015-11-14T00:00:00 * Location: Indian Ocean * Campaign: PAMELA-MOZ4 * Basis: Pourquoi Pas ? (2005)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Rooze, Jurjen | |||
| 2 | Optional event label | Event 2 | Rooze, Jurjen | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Rooze, Jurjen | Geocode – Core processing software (CINEMA2) | |
| 4 | Carbon, organic, total | TOC | % | Rooze, Jurjen | Cavity ring-down spectroscopy (CRDS) isotopic water analyzer, Picarro Inc., L2130-i; coupled to a Combustion Module (CM), Picarro Inc., A020 | |
| 5 | δ13C, total organic carbon | δ13C TOC | ‰ PDB | Rooze, Jurjen | Cavity ring-down spectroscopy (CRDS), isotopic water analyzer, Picarro Inc., L2101-i | vs. VPDB |
| 6 | Iron, dithionite extractable | FeD | % | Rooze, Jurjen | Inductively coupled plasma-atomic emission spectrometer (ICP-AES), HORIBA, ULTIMA 2 | |
| 7 | Iron disulfide | FeS2 | % | Rooze, Jurjen | Chromium reducible sulfur extraction according to Canfield et al. (1986) | |
| 8 | δ34S, FeS2 | δ34S FeS2 | ‰ CDT | Rooze, Jurjen | Elemental analyzer - isotope ratio mass spectrometer (EA-IRMS), Europa Scientific, ANCA-SL/20–20 | VCDT |
| 9 | Calcite | Cal | % | Rooze, Jurjen | X-Ray Diffractometer, Bruker Corporation, D8 ADVANCE | |
| 10 | High magnesium calcite | HMC | % | Rooze, Jurjen | X-Ray Diffractometer, Bruker Corporation, D8 ADVANCE | |
| 11 | Aragonite | Arg | % | Rooze, Jurjen | X-Ray Diffractometer, Bruker Corporation, D8 ADVANCE | |
| 12 | δ13C | δ13C | ‰ PDB | Rooze, Jurjen | Isotope ratio mass spectrometer (IRMS), Thermo Finnigan, MAT 253; coupled with Gas bench II, Thermo Fisher Scientific | vs. VPDB, background carbonate |
| 13 | δ18O | δ18O | ‰ | Rooze, Jurjen | Isotope ratio mass spectrometer (IRMS), Thermo Finnigan, MAT 253; coupled with Gas bench II, Thermo Fisher Scientific | vs. VPDB, background carbonate |
| 14 | Iron | Fe | % | Rooze, Jurjen | Wavelength Dispersive X-Ray Fluorescence (WDXRF), Bruker Corporation, S8 Tiger | |
| 15 | Aluminium | Al | % | Rooze, Jurjen | Wave-length dispersive X-ray fluorescence spectroscopy (WD-XRF) | |
| 16 | Methane, dissolved | CH4 diss | mmol/l | Rooze, Jurjen | Cavity ring-down spectrometer (CRDS), Picarro, G2201-i | |
| 17 | Sulfate, dissolved | [SO4]2- diss | mmol/l | Rooze, Jurjen | Ion chromatograph, Dionex Corporation, ICS-5000 | |
| 18 | Hydrogen sulfide, dissolved | H2S diss | mmol/l | Rooze, Jurjen | Cline method according to Cline (1969) | |
| 19 | Iron, dissolved | Fe diss | µmol/l | Rooze, Jurjen | Inductively coupled plasma mass spectrometer (ICP-MS), ThermoFisher Scientific, Element XR | |
| 20 | Alkalinity, total | AT | mmol(eq)/l | Rooze, Jurjen | Automatic titrator, Metrohm, 888 Titrando coupled with pH electrode | |
| 21 | Manganese, dissolved | Mn diss | µmol/l | Rooze, Jurjen | Inductively coupled plasma mass spectrometer (ICP-MS), ThermoFisher Scientific, Element XR | |
| 22 | Calcium, dissolved | Ca diss | mmol/l | Rooze, Jurjen | Ion chromatograph, Thermo Scientific, Dionex ICS-5000 | |
| 23 | Magnesium, dissolved | Mg diss | mmol/l | Rooze, Jurjen | Ion chromatograph, Dionex Corporation, ICS-5000 | |
| 24 | Porosity, total | Poros total | Rooze, Jurjen | Gravimetric analysis | Gravimetric determination from wet and freeze-dried sediment weights |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
694 data points