Pape, Thomas; Malnati, Janice; Tseng, Yiting; Bohrmann, Gerhard (2023): Concentrations and stable C and H isotopic compositions of methane in sediment core GeoB24376-2 from the Calabrian accretionary wedge, RV Sonne cruise SO278 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.953918
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Published: 2023-03-31 • DOI registered: 2023-04-29
Abstract:
Shallow sediment cores were collected with a gravity corer and a multi corer from several sites at the Sartori Mud Volcano in the Calabrian accretionary prism during cruise SO278 with R/V SONNE. In order to determine ex-situ concentrations and stable C and H isotopic compositions of methane dissolved in pore water, sediment samples were taken from the sediment cores with cut-off syringes and transferred into glass vials. Methane concentrations in the headspace gas were determined by use of gas chromatography (GC) and used to calculate concentrations of methane dissolved in pore water (uncorrected for sediment porosity and Bunsen coefficient). Stable C and H isotopic compositions of methane were determined by use of GC-isotope ratio mass spectrometry.
Keyword(s):
Related to:
Doll, Mechthild; Römer, Miriam; Pape, Thomas; Kölling, Martin; Kaul, Norbert; dos Santos Ferreira, Christian; Bohrmann, Gerhard (2023): Recent and episodic activity of decoupled mud/fluid discharge at Sartori mud volcano in the Calabrian Arc, Mediterranean Sea. Frontiers in Earth Science, 11, 1181380, https://doi.org/10.3389/feart.2023.1181380
References:
Bohrmann, Gerhard; Ahrlich, Frauke; Antoniou, Dimitra; Behrendt, Nele; Innocentini, Simone; Coulibaly, Ousmane; Eijsink, Agathe; Feddersen, Greta; Gaide, Stefanie; Kaul, Norbert; König, Tabea; Krahl, Julia; Kürzinger, Victoria; Lenius, Sven; Malnati, Janice; Marschall, Lara; Niederbockstruck, Bryan; Porrmann, Simon; Rau, Svenja; Römer, Miriam; Schillai, Sophia; Spiesecke, Ulli; Streuff, Katharina Teresa; Tseng, Yiting; Vejzovic, Ines; von Wahl, Till; Warnken, Niklas; Witzleb, Antonia (2021): Fluid-rock interaction at the backstop to the Mediterranean Ridge Accretionary Complex South of Crete, Cruise Report SO278, 12 October - 01 December 2020, Emden (Germany) - Emden (Germany). SONNE-Berichte, Gutachterpanel Forschungsschiffe, SO278, 208 pp, https://doi.org/10.48433/cr_so278
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 390741603: EXC 2077: The Ocean Floor – Earth's Uncharted Interface
Coverage:
Latitude: 38.206530 * Longitude: 17.616450
Date/Time Start: 2020-11-19T18:33:34 * Date/Time End: 2020-11-19T18:33:34
Minimum DEPTH, sediment/rock: 0.30 m * Maximum DEPTH, sediment/rock: 2.54 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Optional event label | Event 2 | ||||
| 2 | Device type | Device | Pape, Thomas | |||
| 3 | Sample type | Samp type | Pape, Thomas | |||
| 4 | DEPTH, sediment/rock | Depth sed | m | Pape, Thomas | Uncorrected | Geocode |
| 5 | Methane | CH4 | µmol/l | Pape, Thomas | Gas chromatography | |
| 6 | δ13C, methane | δ13C CH4 | ‰ PDB | Pape, Thomas | Gas chromatography - Mass spectrometry (GC-MS) | vs. VPDB |
| 7 | δ Deuterium, methane | δD CH4 | ‰ SMOW | Pape, Thomas | Gas chromatography - Mass spectrometry (GC-MS) | vs. VSMOW |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
38 data points
Data
| 1 Event 2 | 2 Device | 3 Samp type | 4 Depth sed [m] | 5 CH4 [µmol/l] | 6 δ13C CH4 [‰ PDB] | 7 δD CH4 [‰ SMOW] |
|---|---|---|---|---|---|---|
| GeoB24376-2 | GC-38 | Headspace gas | 0.30 | 21.7 | ||
| GeoB24376-2 | GC-38 | Headspace gas | 0.60 | 635.1 | -55.6 | -155 |
| GeoB24376-2 | GC-38 | Headspace gas | 0.81 | 490.2 | -181 | |
| GeoB24376-2 | GC-38 | Headspace gas | 1.05 | 553.4 | -190 | |
| GeoB24376-2 | GC-38 | Headspace gas | 1.31 | 599.9 | -56.7 | -194 |
| GeoB24376-2 | GC-38 | Headspace gas | 1.54 | 442.1 | ||
| GeoB24376-2 | GC-38 | Headspace gas | 1.79 | 773.0 | -57.7 | |
| GeoB24376-2 | GC-38 | Headspace gas | 2.04 | 639.2 | -55.7 | -193 |
| GeoB24376-2 | GC-38 | Headspace gas | 2.54 | 248.1 | -57.8 | -196 |