Oxygen profiles of surface sediments retrieved from the eastern continental shelf of the Antarctic Peninsula during RV POLARSTERN cruise PS118

During the PS118 research cruise with the German research vessel RV POLARSTERN (Feb 2019- April 2019), sediments were collected with a multicorer from 7 stations along a 400 mile transect from the eastern shelf of the Antarctic Peninsula to the West of the South Orkney Islands. A total of 69 high-re...

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Bibliographic Details
Main Authors: Baloza, Marwa, Henkel, Susann, Geibert, Walter, Kasten, Sabine, Holtappels, Moritz
Format: Dataset
Language:English
Published: PANGAEA 2022
Subjects:
Antarctic
carbon content
DATE/TIME
Depth
bathymetric
sediment/rock
Event label
Gear identification number
iron
LATITUDE
LONGITUDE
manganese
MUC
MultiCorer
Multicorer with television
Oxygen
oxygen uptake
Phosphorus
Polarstern
Profile ID
PS118
PS118_12-3
PS118_12-5
PS118_13-5
PS118_24-2
PS118_24-3
PS118_48-2
PS118_5-3
PS118_5-4
PS118_62-2
PS118_8-5
PS118_8-6
PS118_8-7
Sample code/label
Scotia Sea
sedimentation rate
shelf sediments
Station label
TVMUC
Weddell Sea
Antarc*
Antarctic Peninsula
South Orkney Islands
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.942450
https://doi.org/10.1594/PANGAEA.942450
Description
Summary:During the PS118 research cruise with the German research vessel RV POLARSTERN (Feb 2019- April 2019), sediments were collected with a multicorer from 7 stations along a 400 mile transect from the eastern shelf of the Antarctic Peninsula to the West of the South Orkney Islands. A total of 69 high-resolution O2 profiles were measured in 23 cores in the upper sediment layer using optical microsensors (Optodes, Pyroscience) in order to determine oxygen penetration depths and diffusive oxygen uptake (DOU). Pore-water samples were taken at depth resolutions of 1 cm from 0-10 cm and below 10 cm with a resolution of 2 cm down to a maximum depth of 30 cm. Sediments of parallel cores were cut at the same depth resolution for solid-phase contents. Pore-water analyses of trace element such as dissolved iron (DFe) and manganese (DMn), dissolved inorganic carbon (DIC), hydrogen sulfide (H2S) and nutrients such as ammonium (NH4+), phosphate (PO4³), nitrate (NO3-), nitrite (NO2-) and silicate (SiO3²−) were measured. For solid-phase analyses, freeze-dried and ground sediment samples were measured for TOC and TN. At 5 stations, Al, Fe, Mn, P and S content was measured after total acid digestion. At the same 5 stations, excess 210Pb was measured in freeze-dried and homogenized sediments.

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