Henkel, Susann; Schwenk, Tilmann; Hanebuth, Till J J; Strasser, Michael; Riedinger, Natascha; Formolo, Michael J; Arnold, Gail Lee; Tomasini, Juan; Krastel, Sebastian; Kasten, Sabine (2012): Sulfate and methane concentrations measured in pore water of sediment core GeoB13849-1. PANGAEA, https://doi.org/10.1594/PANGAEA.773287, In supplement to: Henkel, S et al. (2012): Pore water geochemistry as a tool for identifying and dating young mass-transport deposits. In: Yamada, Y et al. (eds.) Advances in Natural and Technological Hazards Research - Submarine Mass Movements and Their Consequences, 5th International Symposium, Springer, 31(1), 87-97, https://doi.org/10.1007/978-94-007-2162-3_8
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Latitude: -36.173500 * Longitude: -51.732667
Date/Time Start: 2009-06-25T04:10:00 * Date/Time End: 2009-06-25T04:10:00
Minimum DEPTH, sediment/rock: 0.15 m * Maximum DEPTH, sediment/rock: 11.09 m
Sulfate concentrations were measured at the Max Planck Institute for Marine Microbiology by suppressed ion chromatography at a 1:100 dilution with 18MOhm water on a Metrohm 761 compact IC. Standard calibrations using seawater provided by the International Association for the Physical Sciences of the Oceans (IAPSO) were performed. The range for the 8-point standard calibration was 5 µM - 400 µM.
For methane, a 3 cm**3 sediment sample was transferred into a 20 mL He flushed headspace vial, filled with 10 mL of a 5 M NaCl solution. All samples were taken immediately after the gravity core was retrieved and cut into 1-m segments. The vials were stored at 4°C. Methane concentrations were measured at the Max Planck Institute for Marine Microbiology with a Hewlett Packard 5890A gas chromatograph using a splitless injector, a stainless steel Porapak-Q column and a flame ionization detector. Chromatographic response on the GC instrument was calibrated against three different standards with variable concentrations of methane. Methane concentrations were corrected for sediment porosity.
38 data points