PANGAEA_990258
Arctic deep-sea sediment pore-fluid concentrations of oxygen, ammonium, nitrate, and divalent manganese and iron
Hageman, Renee; Thorseth, Ingunn H; Møller, Tor Einar; Brendryen, Jo; Leth Jørgensen, Steffen
Arctic deep-sea sediment pore-fluid concentrations of oxygen, ammonium, nitrate, and divalent manganese and iron
2026-02-25
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.990258
Investigator
Renee
Hageman
Renee.Hageman@uib.no
Earth Science
Event label
Cruise/expedition
Core
Sample code/label
DEPTH, sediment/rock
Oxygen
Nitrate
Nitrogen oxide
Ammonium
Manganese 2+
Iron 2+
Comment
geoscientificInformation
ammonium
Arctic
Calypso Corer
deep-sea sediments
divalent iron
divalent manganese
Gravity corer
GS13_CC02
GS13-108
GS14_GC02
GS14_GC04
GS14_GC08
GS14_GC09
GS14_GC12
GS14_GC14
GS14-CGB14
GS15_GC01
GS15-197
GS16_GC04
GS16_GC05
GS16_GC06
GS16_GC07
GS16b-202
GS17_GC02
GS17_GC04
GS17_GC05
GS17-213
GS19_GC05
GS19_GC10
GS19-108
GS21_GC07
GS21_GC08
GS21-235
iron
KH22_GC02
KPH22-240
manganese
nitrate
Oxygen
Sediments
Fiber-optic oxygen microsensor PSt1 with MicroTX3 transmitter (Presens)
Segmented continuous flow analyzer, SEAL Analytical, QuAAtro
Inductively coupled plasma–optical emission spectrometer (ICP-OES), Thermo Fisher Scientific Inc., iCAP 7600 Duo
G. O. Sars (2003)
Kronprins Haakon
2013-07-10
2022-05-26
Complete
70.829267
79.611667
-12.0367
8.508775
0.0 m (DEPTH, sediment/rock)
20.05 m (DEPTH, sediment/rock)
access rights needed
CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends)
English
PANGAEA
Data Publisher for Earth & Environmental Science
https://www.pangaea.de/
Data Center Contact
Michael
Diepenbroek
info@pangaea.de
Leobener Str.
Bremen
Bremen
28359
Germany
online
5138 data points
text/tab-separated-values
Homo sapiens (ID 102573) - BioProject - NCBI [webpage]. https://www.ncbi.nlm.nih.gov/bioproject/102573
ID 784957 - BioProject - NCBI [webpage]. https://www.ncbi.nlm.nih.gov/bioproject/784957
ID 789780 - BioProject - NCBI [webpage]. https://www.ncbi.nlm.nih.gov/bioproject/789780
marine sediment metagenome (ID 529480) - BioProject - NCBI [webpage]. https://www.ncbi.nlm.nih.gov/bioproject/529480
Brendryen, Jo; Møller, Tor Einar; Leth Jørgensen, Steffen (2026): 14C dating of Arctic deep-sea sediment [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.990499
Hageman, Renee; Le Moine-Bauer, Sven; Thorseth, Ingunn H; Brendryen, Jo; Møller, Tor Einar; Böröcz, Réka; Babel, Hannah R; Hannisdal, Bjarte; Leth Jørgensen, Steffen (in review): Widespread deep-sea microorganisms in subseafloor geochemical cycling.
This dataset consists of depth profiles of pore-fluid chemistry from multiple sites along the Arctic mid-ocean ridge system. The primary goal of collecting these data was to compare them with microbial community profiles to investigate the coupling between microbial taxa and redox-sensitive chemical constituents. Sampling was conducted during several research cruises across different years and seasons, using consistent onboard methodologies. The cores were split in half, where on one side the oxygen data was measured using a micro-fiber optic oxygen transmitter (Microx TX3, PreSense). Concomitantly on the other half, pore-fluids were extracted using Rhizon CSS soil moisture sampler (Rhizosphere research products) at intervals of 5–30 cm. The upper 100 cm were sampled at finer intervals than deeper sections due to reduced pore-fluid availability caused by sediment compression. The pore-fluids were analyzed for cations and nutrients. The cation samples were acidified up to 3 vol% ultra pure HNO3 and stored at 4 degrees Celsius until analyses on the Thermo Scientific iCAP 7600 inductively coupled plasma optical emission spectrometer. The nutrient samples were frozen at -20 degrees Celsius until analyses on the Seal Analytical Quaatro at Earth Sciences department in the University of Bergen. The microbial community data (16S rRNA gene) is available on NCBI sequence database under project numbers: PRJNA784957, PRJEB102573, PRJNA529480, PRJNA789780. From one core the age was determined through 14C dating of planktonic foraminifera Neogloboquadrina pachyderma. The 14C was analysed at the Radiocarbon Dating Laboratory (Lunds Universitet, Sweden). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.990258"!
https://doi.pangaea.de/10.1594/PANGAEA.990499
14C dating of Arctic deep-sea sediment
https://npolar.no/en/kronprins-haakon/
Kronprins Haakon
https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars
G. O. Sars (2003)
https://www.ncbi.nlm.nih.gov/bioproject/102573
Homo sapiens (ID 102573) - BioProject - NCBI
https://www.ncbi.nlm.nih.gov/bioproject/529480
marine sediment metagenome (ID 529480) - BioProject - NCBI
https://www.ncbi.nlm.nih.gov/bioproject/784957
ID 784957 - BioProject - NCBI
https://www.ncbi.nlm.nih.gov/bioproject/789780
ID 789780 - BioProject - NCBI
DIF
9.4
2026-02-25
2026-04-30