Emeis, Kay-Christian; Struck, Ulrich (2022): Bulk sediment δ15N of sediment core M40/4_SL87, Balearic Rise, Western Mediterranean Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.951490, In: Emeis, K-C; Struck, U (2022): Alkenone sea surface temperature estimates, carbon concentrations and delta15N values of sediment core M40/4_SL87, Balearic Rise, Western Mediterranean Sea [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.951536
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Published: 2022-12-02 • DOI registered: 2023-01-07
Abstract:
The data were raised to compare the history of sea-surface temperature (based on the alkenone unsaturation index UK'37), organic and inorganic carbon accumulation, and the ratio of stable nitrogen isotopes 15N and 14N in the Western Mediterranean Basin to that of coeval cores from the Eastern Mediterranean basin. There, periodic anoxia caused the deposition of organic-carbon-rich sapropels over the same time interval in the late Quaternary, but are not expressed in the western basin. The gravity core was taken on the Balearic Rise and was recovered during expedition Meteor 40/4 from 1900 m water depth.
Keyword(s):
Related to:
Emeis, Kay-Christian; Schulz, Hartmut; Struck, Ulrich; Rossignol-Strick, Martine; Erlenkeuser, Helmut; Howell, M W; Kroon, Dick; Mackensen, Andreas; Ishizuka, S; Oba, Tadamichi; Sakamoto, Tatsuhiko; Koizumi, Itaru (2003): Eastern Mediterranean surface water temperatures and d18O composition during deposition of sapropels in the late Quaternary. Paleoceanography, 18(1), 1005, https://doi.org/10.1029/2000PA000617
Struck, Ulrich; Emeis, Kay-Christian; Voss, Maren; Krom, Michael D; Rau, Greg H (2001): Biological productivity during sapropel S5 formation in the Eastern Mediterranean Sea: evidence from stable isotopes of nitrogen and carbon. Geochimica et Cosmochimica Acta, 65(19), 3249-3266, https://doi.org/10.1016/S0016-7037(01)00668-8
Further details:
Brassell, Simon C; Eglinton, Geoffrey; Marlowe, I T; Pflaumann, Uwe; Sarnthein, Michael (1986): Molecular stratigraphy: a new tool for climatic assessment. Nature, 320(6058), 129-133, https://doi.org/10.1038/320129a0
Müller, Peter J; Kirst, Georg; Ruhland, Götz; Von Storch, Isabel; Rosell-Melé, Antoni (1998): Calibration of the alkenone paleotemperature index UK'37 based on core-tops from the eastern South Atlantic and the global ocean (60°N-60°S). Geochimica et Cosmochimica Acta, 62(10), 1757-1772, https://doi.org/10.1016/S0016-7037(98)00097-0
Funding:
Coverage:
Latitude: 38.988000 * Longitude: 4.023000
Date/Time Start: 1998-02-07T10:29:00 * Date/Time End: 1998-02-07T10:29:00
Minimum DEPTH, sediment/rock: 0.03 m * Maximum DEPTH, sediment/rock: 5.37 m
Event(s):
M40/4_SL87 (M40/4_87-6SL) * Latitude: 38.988000 * Longitude: 4.023000 * Date/Time: 1998-02-07T10:29:00 * Elevation: -1897.0 m * Campaign: M40/4 * Basis: Meteor (1986) * Method/Device: Gravity corer (Kiel type) (SL)
Comment:
Methods:
Samples were obtained from cores taken aboard r/v Meteor either during the expedition or in the Core Repository of the Institute of Baltic Sea Research. Samples were punched out of the working halves with sawn-off syringes, wrapped in plastic, and stored frozen until freeze-drying in the shore-based laboratory. The dried bulk sample was homogenized by mortar and pestle.
A third subsample was analysed for the delta15N of bulk sediment nitrogen in a Carlo Erba/Fisons 1108 Elemental Analyzer connected to an isotope-ratio mass-spectrometer (Finnigan Delta S). The reference gas was pure N2 nitrogen from a cylinder calibrated against IAEA standards N-1 and N-2. The standard deviation for replicate samples was less than 0.2‰.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Emeis, Kay-Christian | Geocode | |
| 2 | δ15N, bulk sediment | δ15N bulk | ‰ air | Emeis, Kay-Christian | Carlo Erba EA 1108 + Thermo Finnigan Delta S mass-spectrometer | vs. air N2 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
185 data points
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