Methane concentrations (uncorrected for sediment porosity and Bunsen coefficient) in headspace gas prepared from gravity core GeoB22043-1 recovered from the Cumberland Bay, South Georgia (cruise M134)

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 c...

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Bibliographic Details
Main Authors: Pape, Thomas, Malnati, Janice, Bohrmann, Gerhard
Format: Dataset
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 2020
Subjects:
Cumberland Bay
gas hydrate
Gravity corer
headspace
M134
Methane
Royal Trough
RV Meteor
Southern Ocean
South Georgia
Optional event label
Method/Device of event
Device type
Sample type
DEPTH, sediment/rock
Gas chromatography - Flame Ionization Detection GC-FID
M134/1
Meteor 1986
Center for Marine Environmental Sciences MARUM
Fid
Online Access:https://dx.doi.org/10.1594/pangaea.925385
https://doi.pangaea.de/10.1594/PANGAEA.925385
Description
Summary: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.

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