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Limoges, Audrey; Weckström, Kaarina; Ribeiro, Sofia; Georgiadis, Eleanor; Hansen, Katrine Elnegaard; Martinez, Philippe; Seidenkrantz, Marit-Solveig; Giraudeau, Jacques; Crosta, Xavier; Massé, Guillaume (2021): Concentrations and fluxes of the sea-ice biomarkers 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane (IP25) and highly branched isoprenoid triene (HBI III) from marine sediment core AMD14-204_CASQ [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.929451

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Abstract:
Concentrations of the sea-ice biomarker IP25 and highly branched isoprenoid triene (HBI III) (ng/g), total organic carbon content (TOC; %), IP25 and HBI III concentrations normalized to TOC (ng/gTOC), and fluxes of IP25 and HBI III (ng/unit surface area/yr) from the marine sediment core AMD14-204_CASQ that was retrieved from the West Greenland shelf, offshore Upernavik, and which spans the last ca. 9,000 years.
Keyword(s):
Baffin Bay; diatoms; Geochemistry; Highly branched isoprenoid (HBI) biomarkers
Related to:
Coverage:
Latitude: 73.261050 * Longitude: -57.899780
Date/Time Start: 2014-07-28T00:00:00 * Date/Time End: 2014-07-28T00:00:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 7.345 m
Event(s):
AMD14-204_CASQ * Latitude: 73.261050 * Longitude: -57.899780 * Date/Time: 2014-07-28T00:00:00 * Elevation: -987.0 m * Recovery: 7.34 m * Campaign: AMD14_1b (ArcticNet) * Basis: CCGS Amundsen * Method/Device: Calypso square corer (CASQ)
Comment:
Fluxes are calculated as follows:
Concentrations (ng/g) x sediment density derived from CT-Scan (HU) x accumulation rate (cm/yr).
To avoid confusion, the fluxes are expressed as ng per unit of surface area per year in the paper.
Trends can be compared, but flux values should not be directly compared with fluxes expressed with other units (e.g., ng/cm²/yr).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmLimoges, AudreyGeocode
2AGEAgeka BPLimoges, AudreyGeocode
32,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit sediment massIP25/sedng/gLimoges, AudreyGas chromatography - Mass spectrometry (GC-MS)
4Highly branched isoprenoids, triunsatured per unit sediment massHBI:3/sedng/gLimoges, AudreyGas chromatography - Mass spectrometry (GC-MS)
5Carbon, organic, totalTOC%Limoges, AudreyCalculatedextrapolated
62,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane, per unit mass total organic carbonIP25/TOCng/gLimoges, AudreyCalculated
7Highly branched isoprenoids, triunsatured, per unit mass total organic carbonHBI:3/TOCng/gLimoges, AudreyCalculated
82,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane, fluxIP25 fluxarbitrary unitsLimoges, AudreyCalculated(ng*HU*cm)/(g*a)
9Highly branched isoprenoids, triunsatured, fluxHBI:3 fluxarbitrary unitsLimoges, AudreyCalculated(ng*HU*cm)/(g*a)
Size:
1925 data points

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