Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 University of Bergen UIB https://ror.org/03zga2b32 Thorseth Ingunn H University of Bergen UIB https://ror.org/03zga2b32 Møller Tor Einar tor.moller@uib.no https://www.uib.no/personer/Tor.Einar.M%C3%B8ller 0000-0002-8043-9472 University of Bergen UIB https://ror.org/03zga2b32 Brendryen Jo University of Bergen UIB https://ror.org/03zga2b32 Leth Jørgensen Steffen Steffen.Jorgensen@uib.no University of Bergen UIB https://ror.org/03zga2b32 2026 Arctic deep-sea sediment pore-fluid concentrations of oxygen, ammonium, nitrate, and divalent manganese and iron dataset https://doi.org/10.1594/PANGAEA.990258 2026-02-25T13:48:42 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). 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 tor.moller@uib.no https://www.uib.no/personer/Tor.Einar.M%C3%B8ller 0000-0002-8043-9472 Leth Jørgensen Steffen Steffen.Jorgensen@uib.no 2026 14C dating of Arctic deep-sea sediment dataset https://doi.org/10.1594/PANGAEA.990499 Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 Le Moine-Bauer Sven Thorseth Ingunn H Brendryen Jo Møller Tor Einar tor.moller@uib.no https://www.uib.no/personer/Tor.Einar.M%C3%B8ller 0000-0002-8043-9472 Böröcz Réka Babel Hannah R Hannisdal Bjarte Leth Jørgensen Steffen Steffen.Jorgensen@uib.no in review Widespread deep-sea microorganisms in subseafloor geochemical cycling -12.0367 8.508775 70.829267 79.611667 3.4217266000000004 73.67816585 2013-07-10T03:00:00 2022-05-26T17:40:00 0.0 20.05 Trond Mohn Research Foundation https://doi.org/10.13039/100016190 TMS2020TMT13 https://www4.uib.no/en/research/research-centres/centre-for-deep-sea-research GS13_CC02 72.811117 3.705633 -2755.0 2013-07-10T03:00:00 GS13-108 GS13-108 2013-06-24T00:00:00 2013-06-24 2013-07-13T00:00:00 2013-07-13 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Calypso Corer CALYPSO GS14_GC02 70.915917 -12.0367 -1036.0 2014-07-22T07:00:00 GS14-CGB14 GS14-CGB14 2014-07-16T00:00:00 2014-07-16 2014-08-13T00:00:00 2014-08-13 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS14_GC04 71.284617 -6.561417 -1050.0 2014-07-24T08:06:00 GS14-CGB14 GS14-CGB14 2014-07-16T00:00:00 2014-07-16 2014-08-13T00:00:00 2014-08-13 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS14_GC08 71.965883 0.102367 -2476.0 2014-07-27T08:15:00 GS14-CGB14 GS14-CGB14 2014-07-16T00:00:00 2014-07-16 2014-08-13T00:00:00 2014-08-13 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS14_GC09 73.700533 7.344317 -2653.0 2014-07-30T05:00:00 GS14-CGB14 GS14-CGB14 2014-07-16T00:00:00 2014-07-16 2014-08-13T00:00:00 2014-08-13 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS14_GC12 73.3565 7.565 -3280.0 2014-07-30T22:00:00 GS14-CGB14 GS14-CGB14 2014-07-16T00:00:00 2014-07-16 2014-08-13T00:00:00 2014-08-13 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS14_GC14 73.566567 8.161433 -2330.0 2014-08-10T01:15:00 GS14-CGB14 GS14-CGB14 2014-07-16T00:00:00 2014-07-16 2014-08-13T00:00:00 2014-08-13 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS15_GC01 73.57555 8.508775 -2562.0 2015-08-07T09:15:00 GS15-197 GS15-197 2015-06-30T00:00:00 2015-06-30 2015-07-17T00:00:00 2015-07-17 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS16_GC04 72.27935 1.699983 -2667.0 2016-07-07T19:45:00 GS16b-202 GS16b-202 2016-06-28T00:00:00 2016-06-28 2016-07-14T00:00:00 2016-07-14 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS16_GC05 76.912767 7.12485 -3007.0 2016-07-10T13:45:00 GS16b-202 GS16b-202 2016-06-28T00:00:00 2016-06-28 2016-07-14T00:00:00 2016-07-14 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS16_GC06 76.920883 7.575367 -2994.0 2016-07-11T03:25:00 GS16b-202 GS16b-202 2016-06-28T00:00:00 2016-06-28 2016-07-14T00:00:00 2016-07-14 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS16_GC07 76.9202 7.389517 -3493.0 2016-07-11T07:50:00 GS16b-202 GS16b-202 2016-06-28T00:00:00 2016-06-28 2016-07-14T00:00:00 2016-07-14 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS17_GC02 73.5708 8.508775 -2570.0 2017-07-08T07:00:00 GS17-213 GS17-213 2017-06-22T00:00:00 2017-06-22 2017-07-18T00:00:00 2017-07-18 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS17_GC04 71.965883 0.102383 -2468.0 2017-07-13T04:15:00 GS17-213 GS17-213 2017-06-22T00:00:00 2017-06-22 2017-07-18T00:00:00 2017-07-18 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS17_GC05 70.829267 -5.387417 -2296.0 2017-07-15T07:30:00 GS17-213 GS17-213 2017-06-22T00:00:00 2017-06-22 2017-07-18T00:00:00 2017-07-18 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS19_GC05 74.236433 5.494217 -2935.0 2019-06-26T08:45:00 GS19-108 GS19-108 2019-06-08T00:00:00 2019-06-08 2019-07-04T00:00:00 2019-07-04 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS19_GC10 73.627933 7.8233 -2461.0 2019-06-27T18:50:00 GS19-108 GS19-108 2019-06-08T00:00:00 2019-06-08 2019-07-04T00:00:00 2019-07-04 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS21_GC07 72.75605 3.827233 -3050.0 2021-07-11T20:30:00 GS21-235 GS21-235 2021-07-03T00:00:00 2021-07-03 2021-07-30T00:00:00 2021-07-30 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC GS21_GC08 72.7554 3.832983 -3010.0 2021-07-12T22:59:00 GS21-235 GS21-235 2021-07-03T00:00:00 2021-07-03 2021-07-30T00:00:00 2021-07-30 G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Pedersen, Rolf B Pedersen, Rolf B G. O. Sars (2003) https://www.hi.no/en/hi/about-us/facilities/our-vessels/g.o.-sars LMEL Gravity corer GC KH22_GC02 79.611667 3.653933 -3622.0 2022-05-26T17:40:00 KPH22-240 KPH22-240 2022-05-24T00:00:00 2022-05-24 2022-05-31T00:00:00 2022-05-31 Kronprins Haakon https://npolar.no/en/kronprins-haakon/ 3YYQ 9739587 Pedersen, Rolf B Pedersen, Rolf B Kronprins Haakon https://npolar.no/en/kronprins-haakon/ 3YYQ 9739587 Gravity corer GC 5138 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 Event Cruise/expedition Expedition Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 Expedition Core Core Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 Core ID Core Sample code/label Sample label Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 Sample label DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 Depth sed [m] Oxygen O2 µmol/l oxygen O https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25805 Molar Concentration Fiber-optic oxygen microsensor PSt1 with MicroTX3 transmitter (Presens) Chemical property sensors dissolved gas sensors http://vocab.nerc.ac.uk/collection/L05/current/351/ Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 O2 [µmol/l] Nitrate [NO3]- µmol/l nitrate http://purl.obolibrary.org/obo/CHEBI_17632 Molar Concentration Segmented continuous flow analyzer, SEAL Analytical, QuAAtro SEAL Analytical QuAAtro Autoanalyser http://vocab.nerc.ac.uk/collection/L22/current/TOOL0511/ Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 [NO3]- [µmol/l] Nitrogen oxide NOx µmol/l nitrogen oxide http://purl.obolibrary.org/obo/CHEBI_35196 Molar Concentration Segmented continuous flow analyzer, SEAL Analytical, QuAAtro SEAL Analytical QuAAtro Autoanalyser http://vocab.nerc.ac.uk/collection/L22/current/TOOL0511/ Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 NOx [µmol/l] Ammonium [NH4]+ mmol/l ammonium http://purl.obolibrary.org/obo/CHEBI_28938 Molar Concentration Segmented continuous flow analyzer, SEAL Analytical, QuAAtro SEAL Analytical QuAAtro Autoanalyser http://vocab.nerc.ac.uk/collection/L22/current/TOOL0511/ Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 [NH4]+ [mmol/l] Manganese 2+ Mn2+ µmol/l Molar Concentration Inductively coupled plasma–optical emission spectrometer (ICP-OES), Thermo Fisher Scientific Inc., iCAP 7600 Duo Thermo Fisher Scientific iCAP PRO ICP-OES Duo inductively coupled plasma-optical emission mass spectrometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL1751/ Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 Mn2+ [µmol/l] Iron 2+ Fe2+ µmol/l Molar Concentration Inductively coupled plasma–optical emission spectrometer (ICP-OES), Thermo Fisher Scientific Inc., iCAP 7600 Duo Thermo Fisher Scientific iCAP PRO ICP-OES Duo inductively coupled plasma-optical emission mass spectrometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL1751/ Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 Fe2+ [µmol/l] Comment Comment Hageman Renee Renee.Hageman@uib.no 0000-0001-8272-9257 Comment CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable ammonium Arctic deep-sea sediments divalent iron divalent manganese iron manganese nitrate Oxygen Sediments author110300 author114655 author114656 author114910 author114911 author114912 author32873 author42263 author76669 award4781 basis221 basis5396 campaign3373958 campaign3374007 campaign3374008 campaign3374011 campaign3374013 campaign3374016 campaign3374023 campaign3374030 campaign53173 campaign53174 campaign53175 campaign53176 campaign53177 campaign53178 campaign53179 campaign53180 curlevel30 event3349057 event3349058 event3349059 event3349060 event3349061 event3349062 event3349063 event3349064 event3349065 event3349066 event3349067 event3349068 event3349069 event3349070 event3349071 event3349072 event3349073 event3349074 event3349075 event3349076 funder22569 geocode1 geocode1599 geocode1600 geocode1601 geocode8128 inst20183 license21 method10861 method11107 method15841 method16272 method7481 param113643 param136089 param1570 param48492 param59344 param754 param756 param790 param83406 param87101 pi114655 ref137805 ref137806 ref137807 ref137808 ref137997 refds990499 term1073131 term1073173 term1073482 term1074698 term2299463 term2300582 term2735576 term37664 term38263 term38494 term40892 term41056 term43863 term44030 term47704 term47913 term49538 term50410 term50710 term67625 term68077 term77115 term77116