Pape, Thomas; Malnati, Janice; Bohrmann, Gerhard (2020): Methane concentrations (uncorrected for sediment porosity and Bunsen coefficient) in headspace gas prepared from gravity core GeoB22039-2 recovered from the Royal Trough, South Georgia (cruise M134) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.925384
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Abstract:
Gravity cores were collected during cruise M134 in 2017 from the Royal Trough and the Cumberland Bay, off South Georgia. In order to determine distributions of light hydrocarbons and characterize biogeochemical zonations in the shallow sediments, sediment samples were taken from gravity cores with cut-off syringes and transferred into glass vials to generate a headspace gas volume. The headspace gas samples were analyzed for their concentrations of methane and other light hydrocarbons by use of a gas chromatograph equipped with a capillary column and a flame ionization detector.
Keyword(s):
Related to:
Bohrmann, Gerhard; Aromokeye, David Adeyemi; Bihler, Viola; Dehning, Klaus; Dohrmann, Ingrid; Gentz, Torben; Grahs, M; Hogg, O; Hüttich, Daniel; Kasten, Sabine; Kirschenmann, E; Lange, Mirko; Leymann, Tom; Linse, Katrin; Loher, Markus; Malnati, Janice; Mau, Susan; Mickoleit, Anett; Nowald, Nicolas; Pape, Thomas; Reuter, Christian; Römer, Miriam; Sahling, Heiko; Stange, Nikolas; Torres, Marta E; Vittori, Vincent; von Dobeneck, Tilo; von Neuhoff, Holger; Weinrebe, Reimer Wilhelm; Wintersteller, Paul (2017): R/V METEOR Cruise Report M134, Emissions of Free Gas from Cross-Shelf Troughs of South Georgia: Distribution, Quantification, and Sources for Methane Ebullition Sites in Sub-Antarctic Waters, Port Stanley (Falkland Islands) - Punta Arenas (Chile), 16 January - 18 February 2017. Berichte aus dem MARUM und dem Fachbereich Geowissenschaften der Universität Bremen, 317, 220 pp, urn:nbn:de:gbv:46-00106081-12
Project(s):
Coverage:
Latitude: -54.457400 * Longitude: -35.842100
Date/Time Start: 2017-01-31T15:11:00 * Date/Time End: 2017-01-31T15:11:00
Minimum DEPTH, sediment/rock: 0.20 m * Maximum DEPTH, sediment/rock: 9.61 m
Event(s):
M134/1_147-2 (GeoB22039-2) * Latitude: -54.457400 * Longitude: -35.842100 * Date/Time: 2017-01-31T15:11:00 * Elevation: -227.0 m * Location: South Atlantic Ocean * Campaign: M134/1 * Basis: Meteor (1986) * Method/Device: Gravity corer (GC) * Comment: GC-14
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Optional event label | Event 2 | ||||
| 2 | Method/Device of event | Method/Device | ||||
| 3 | Device type | Device | Pape, Thomas | |||
| 4 | Sample type | Samp type | Pape, Thomas | |||
| 5 | DEPTH, sediment/rock | Depth sed | m | Pape, Thomas | Geocode | |
| 6 | Methane | CH4 | mmol/l | Pape, Thomas | Gas chromatography - Flame Ionization Detection (GC-FID) |
License:
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC-BY-NC-SA-4.0)
Size:
90 data points
Data
| 1 Event 2 | 2 Method/Device | 3 Device | 4 Samp type | 5 Depth sed [m] | 6 CH4 [mmol/l] |
|---|---|---|---|---|---|
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 0.20 | 0.0010 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 0.40 | 0.0010 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 0.59 | 0.0030 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 0.69 | 0.0030 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 0.94 | 0.0040 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 1.19 | 0.0030 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 1.44 | 0.0020 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 1.59 | 0.0020 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 1.84 | 0.0050 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 2.09 | 0.0050 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 2.34 | 0.0100 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 2.59 | 0.0060 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 2.84 | 0.0090 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 3.09 | 0.0170 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 3.34 | 0.0190 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 3.59 | 0.0250 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 3.84 | 0.0400 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 4.09 | 0.0370 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 4.34 | 0.2210 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 4.59 | 0.2300 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 4.84 | 0.3380 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 5.09 | 0.4640 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 5.34 | 1.4720 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 5.60 | 2.0730 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 5.85 | 2.1740 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 6.10 | 3.1480 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 6.60 | 4.3310 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 7.60 | 7.3130 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 8.61 | 7.2970 |
| GeoB22039-2 | Gravity corer | GC-14 | headspace gas | 9.61 | 4.1770 |