Publikationsdatum:
2023-12-15
Beschreibung:
This dataset contains the bulk sediment parameters (total organic carbon (TOC), carbon nitrogen ratio (C/N), δ13C), lipid biomarker (branched glycerol dialkyl glycerol tetraethers (brGDGTs), crenarchaeol, long-chain diols, long-chain n-alkanes, alkenones, sterols) and palynological (dinoflagellate cysts, pollen) content of 20 surface sediments (0-2 cm) from the northern Gulf of Mexico, near the Mississippi and Atchafalaya river mouths. Samples were retrieved from three land-sea transects; (1) offshore the Mississippi river, (2) offshore the Atchafalaya river and (3) on the 20 m isobar on the Louisiana shelf, during a research cruise in February 2020. Samples were analysed on their organic carbon composition, which was divided into soil-, fluvial- and plant-derived terrestrial organic carbon, and marine produced organic carbon, to investigate if the composition and quality of the terrestrial carbon had an influence on their dispersal patterns.
Schlagwort(e):
64PE467; 64PE467_20b; 64PE467_20c; 64PE467_20d; 64PE467_20e; 64PE467_20f; 64PE467_80b; 64PE467_A100; 64PE467_A15; 64PE467_A30; 64PE467_A300; 64PE467_A3200; 64PE467_A50; 64PE467_A600; 64PE467_M100; 64PE467_M15; 64PE467_M200; 64PE467_M300; 64PE467_M50; 64PE467_M600; 64PE467_MonSt20; Alkenone, per unit mass total organic carbon; Alkenones; Average chain length; beta-Sitosterol of total sterols; Branched glycerol dialkyl glycerol tetraether, Ia; Branched glycerol dialkyl glycerol tetraether, Ib; Branched glycerol dialkyl glycerol tetraether, IIa; Branched glycerol dialkyl glycerol tetraether, IIa'; Branched glycerol dialkyl glycerol tetraether, IIb; Branched glycerol dialkyl glycerol tetraether, IIb'; Branched glycerol dialkyl glycerol tetraether, IIc; Branched glycerol dialkyl glycerol tetraether, IIc'; Branched glycerol dialkyl glycerol tetraether, IIIa; Branched glycerol dialkyl glycerol tetraether, IIIa'; Brassicasterol of total sterols; brGDGTs; C/N; Campesterol of total sterols; Carbon, organic, total; Carbon/Nitrogen ratio; crenarchaeol; Crenarchaeol, per unit mass total organic carbon; Date/Time of event; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Dinocysts; Dinoflagellate cyst, autotrophic; Dinoflagellate cyst, heterotrophic; Dinoflagellate cyst, per unit mass total organic carbon; Dinoflagellate cyst, per unit sediment mass; Dinosterol of total sterols; Elemental Analyzer (Fisions Instruments NA 1500) coupled to a FinniganMat Delta Plus IRMS; Elevation of event; Event label; FC32 1,15; Gas Chromatograph coupled to a Flame Ionization Detector (GC-FID, Hewlett Packard 6890 series); Gulf of Mexico; High Performance Liquid Chromatography - Mass spectrometry (HPLC-MS); Latitude of event; Location of event; Long chain diol, C28 1,13-diol, per unit mass total organic carbon; Long chain diol, C28 1,14-diol, per unit mass total organic carbon; Long chain diol, C30 1,13-diol, per unit mass total organic carbon; Long chain diol, C30 1,14-diol, per unit mass total organic carbon; Long chain diol, C30 1,15-diol, per unit mass total organic carbon; Long chain diol, C32 1,15-diol, per unit mass total organic carbon; long-chain diols; Long-chain n-alkanes; Longitude of event; MUC; MultiCorer; organic carbon composition; Pelagia; pollen; Pollen, per unit mass total organic carbon; Pollen, per unit sediment mass; Sample ID; sterols; Sterols, marine, per unit mass total organic carbon; Sterols, terrestrial, per unit mass total organic carbon; Stigmasterol of total sterols; Sum n-alkanes C29-C35, per unit mass total organic carbon; surface sediments; TOC; δ13C; δ13C, organic carbon
Materialart:
Dataset
Format:
text/tab-separated-values, 820 data points
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