Tetraether lipid inventory of upper slope marine sediments deposited over the last 30 thousand years north of the Svalbard archipelago
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2026
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| _version_ | 1867171053268107264 |
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| author | Sabino, Mathia Nogarotto, Alessio Noormets, Riko Chauhan, Teena Mollenhauer, Gesine Hefter, Jens Tesi, Tommaso |
| author_facet | Sabino, Mathia Nogarotto, Alessio Noormets, Riko Chauhan, Teena Mollenhauer, Gesine Hefter, Jens Tesi, Tommaso |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The dataset presented was used to reconstruct the origin of terrestrial material deposited during the last 30 thousand years on the upper continental slope of the Svalbard archipelago, north of Nordaustlandet (81°16'N, 26°13'E). The material analyzed consisted in muddy sediments from the 4.66 m long gravity core HH11-09GC, retrieved at a water depth of 488 m in September 2011 during a scientific cruise of the R/V Helmer Hanssen. Data on isoprenoid (i-), hydroxylated (OH-), and branched (br-) glycerol dialkyl glycerol tetraethers (GDGTs) were obtained extracting with organic solvents about 1.5 g of dry sediment of 77 samples according to the method reported in Tesi et al. (2021). Chromatographic analyses to identify and quantify each compound of interest were performed on an Agilent 1260 Infinity II ultra-high performance liquid chromatography-mass spectrometry (UHPLC-MS) system, consisting of a G1712B binary pump, a G7129A vial sampler with integrated sample thermostat, a G7116A multicolumn thermostat, and a G6125C single quadrupole mass spectrometer with an atmospheric pressure chemical ionization (APCI) ion source. Sediment extraction was performed at the organic geochemistry laboratories of the Institute of Polar Sciences of the National Research Council in Bologna (Italy), while chromatographic investigations were carried out at the Alfred Wegener Institute (AWI) laboratory in Bremerhaven (Germany). Data on GDGTs were used to gain insights on the origin of the terrestrial material delivered on the study site. Additionally, we calculated indices based on brGDGTs to identify the production of bacterial tetraether lipids in marine environments. Tesi, T., Muschitiello, F., Mollenhauer, G., Miserocchi, S., Langone, L., Ceccarelli, C., et al. (2021). Rapid Atlantification along the Fram Strait at the beginning of the 20th century. Science Advances, 7(48). https://doi.org/10.1126/sciadv.abj2946 |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_983967 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Tetraether lipid inventory of upper slope marine sediments deposited over the last 30 thousand years north of the Svalbard archipelago Sabino, Mathia Nogarotto, Alessio Noormets, Riko Chauhan, Teena Mollenhauer, Gesine Hefter, Jens Tesi, Tommaso Arctic; Branched and isoprenoid tetraether index; Branched glycerol dialkyl glycerol tetraether, Ia, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, Ib, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, Ic, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIa, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIa', per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIb, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIb', per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIc, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIc', per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIIa, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIIa', per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIIb, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIIb', per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIIc, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIIc', per unit mass organic carbon; Bølling-Allerød; Crenarchaeol, per unit mass organic carbon; Crenarchaeol regio-isomer, per unit mass organic carbon; DEPTH, sediment/rock; GC; glycerol dialkyl glycerol tetraethers; Gravity corer; Helmer Hanssen; Hexamethylated branched glycerol dialkyl glycerol tetraether; HH11; HH11-09GC; HH2011; Hydroxylated acyclic glycerol dibiphytanyl glycerol tetraether, per unit mass organic carbon; Hydroxylated dicyclic glycerol dibiphytanyl glycerol tetraether, per unit mass organic carbon; Hydroxylated monocyclic glycerol dibiphytanyl glycerol tetraether, per unit mass organic carbon; Isoprenoid acyclic glycerol dialkyl glycerol tetraether, per unit mass organic carbon; Isoprenoid dicyclic glycerol dialkyl glycerol tetraether, per unit mass organic carbon; Isoprenoid monocyclic glycerol dialkyl glycerol tetraether, per unit mass organic carbon; Isoprenoid tricyclic glycerol dialkyl glycerol tetraether, per unit mass organic carbon; LATITUDE; LONGITUDE; Number of cyclopentane moieties of tetramethylated branched glycerol dialkyl glycerol tetraether; Pentamethylated branched glycerol dialkyl glycerol tetraether; permafrost-climate feedback; Sample code/label; Sum branched glycerol dialkyl glycerol tetraether, IIIa/Sum Branched glycerol dialkyl glycerol tetraether, IIa ratio; Tetramethylated branched glycerol dialkyl glycerol tetraether; Ultra-high-performance liquid chromatograph (UHPLC), Agilent, 1260 Infinity II; coupled with single quadrupole mass spectrometer, Agilent, G6125C with atmospheric pressure chemical ionization (APCI) ion source; Yedoma deposits; Yermak Plateau The dataset presented was used to reconstruct the origin of terrestrial material deposited during the last 30 thousand years on the upper continental slope of the Svalbard archipelago, north of Nordaustlandet (81°16'N, 26°13'E). The material analyzed consisted in muddy sediments from the 4.66 m long gravity core HH11-09GC, retrieved at a water depth of 488 m in September 2011 during a scientific cruise of the R/V Helmer Hanssen. Data on isoprenoid (i-), hydroxylated (OH-), and branched (br-) glycerol dialkyl glycerol tetraethers (GDGTs) were obtained extracting with organic solvents about 1.5 g of dry sediment of 77 samples according to the method reported in Tesi et al. (2021). Chromatographic analyses to identify and quantify each compound of interest were performed on an Agilent 1260 Infinity II ultra-high performance liquid chromatography-mass spectrometry (UHPLC-MS) system, consisting of a G1712B binary pump, a G7129A vial sampler with integrated sample thermostat, a G7116A multicolumn thermostat, and a G6125C single quadrupole mass spectrometer with an atmospheric pressure chemical ionization (APCI) ion source. Sediment extraction was performed at the organic geochemistry laboratories of the Institute of Polar Sciences of the National Research Council in Bologna (Italy), while chromatographic investigations were carried out at the Alfred Wegener Institute (AWI) laboratory in Bremerhaven (Germany). Data on GDGTs were used to gain insights on the origin of the terrestrial material delivered on the study site. Additionally, we calculated indices based on brGDGTs to identify the production of bacterial tetraether lipids in marine environments. Tesi, T., Muschitiello, F., Mollenhauer, G., Miserocchi, S., Langone, L., Ceccarelli, C., et al. (2021). Rapid Atlantification along the Fram Strait at the beginning of the 20th century. Science Advances, 7(48). https://doi.org/10.1126/sciadv.abj2946 |
| title | Tetraether lipid inventory of upper slope marine sediments deposited over the last 30 thousand years north of the Svalbard archipelago |
| topic | Arctic; Branched and isoprenoid tetraether index; Branched glycerol dialkyl glycerol tetraether, Ia, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, Ib, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, Ic, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIa, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIa', per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIb, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIb', per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIc, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIc', per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIIa, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIIa', per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIIb, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIIb', per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIIc, per unit mass organic carbon; Branched glycerol dialkyl glycerol tetraether, IIIc', per unit mass organic carbon; Bølling-Allerød; Crenarchaeol, per unit mass organic carbon; Crenarchaeol regio-isomer, per unit mass organic carbon; DEPTH, sediment/rock; GC; glycerol dialkyl glycerol tetraethers; Gravity corer; Helmer Hanssen; Hexamethylated branched glycerol dialkyl glycerol tetraether; HH11; HH11-09GC; HH2011; Hydroxylated acyclic glycerol dibiphytanyl glycerol tetraether, per unit mass organic carbon; Hydroxylated dicyclic glycerol dibiphytanyl glycerol tetraether, per unit mass organic carbon; Hydroxylated monocyclic glycerol dibiphytanyl glycerol tetraether, per unit mass organic carbon; Isoprenoid acyclic glycerol dialkyl glycerol tetraether, per unit mass organic carbon; Isoprenoid dicyclic glycerol dialkyl glycerol tetraether, per unit mass organic carbon; Isoprenoid monocyclic glycerol dialkyl glycerol tetraether, per unit mass organic carbon; Isoprenoid tricyclic glycerol dialkyl glycerol tetraether, per unit mass organic carbon; LATITUDE; LONGITUDE; Number of cyclopentane moieties of tetramethylated branched glycerol dialkyl glycerol tetraether; Pentamethylated branched glycerol dialkyl glycerol tetraether; permafrost-climate feedback; Sample code/label; Sum branched glycerol dialkyl glycerol tetraether, IIIa/Sum Branched glycerol dialkyl glycerol tetraether, IIa ratio; Tetramethylated branched glycerol dialkyl glycerol tetraether; Ultra-high-performance liquid chromatograph (UHPLC), Agilent, 1260 Infinity II; coupled with single quadrupole mass spectrometer, Agilent, G6125C with atmospheric pressure chemical ionization (APCI) ion source; Yedoma deposits; Yermak Plateau |
| url | https://doi.org/10.1594/PANGAEA.983967 |