Obreht, Igor; Wörmer, Lars; Varma, Devika; De Vleeschouwer, David; Schulz, Hartmut; Kucera, Michal; Hinrichs, Kai-Uwe: Last Interglacial annually to subdecadally resolved GDGT-based sea surface temperature record from sapropel S5 (Eastern Mediterranean) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.973473 (dataset in review)
Abstract:
We present annually to subdecadaly resolved GDGT-based (CCaT) sea surface temperature reconstruction from S5 sapropel layer recovered in the sediment core M51/3-SL104 (34.8247°N, 27.2925°E; water depth 2155 m) from the Pliny Trench region of the Eastern Mediterranean. We applied Mass Spectrometry Imaging (MSI) on finely laminated sapropel sediment in 200 µm resolution. We used CCaT ratio that was calibrated to SST. MSI was performed using a 7T solarix XR Fourier transform-ion cyclotron resonance-mass spectrometer (FT-ICR-MS) coupled to a matrix-assisted laser desorption/ionization (MALDI) source equipped with a Smartbeam II laser. The resulting time-series of alkenone-based sea surface temperature covers ~4.800 years in 1-4 year resolution. In the dataset are presented depth, age, CCaT values, calibrated SST time-series and associated uncertainty.
Supplement to:
Obreht, Igor; Wörmer, Lars; Varma, Devika; De Vleeschouwer, David; Schulz, Hartmut; Kucera, Michal; Hinrichs, Kai-Uwe (in review): Influence of Mediterranean Oceanographic and Environmental Conditions on Molecular Proxy-Based Sea Surface Temperature Reconstructions During the Last Interglacial. Paleoceanography and Paleoclimatology
References:
Obreht, Igor; De Vleeschouwer, David; Wörmer, Lars; Kucera, Michal; Varma, Devika; Prange, Matthias; Laepple, Thomas; Wendt, Jenny; Nandini-Weiss, Sri Durgesh; Schulz, Hartmut; Hinrichs, Kai-Uwe (2022): Last Interglacial decadal sea surface temperature variability in the eastern Mediterranean. Nature Geoscience, https://doi.org/10.1038/s41561-022-01016-y
Further details:
Obreht, Igor; De Vleeschouwer, David; Wörmer, Lars; Kucera, Michal; Varma, Devika; Laepple, Thomas; Wendt, Jenny; Prange, Matthias; Nandini-Weiss, Sri Durgesh; Schulz, Hartmut; Hinrichs, Kai-Uwe (2020): Subdecadally resolved sea surface temperature record from sapropel S5 (Eastern Mediterranean) deposited during the Last Interglacial [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.922794
Funding:
European Research Council (ERC), grant/award no. 670115: Zooming into paleoenvironmental and biogeochemical processes through molecular imaging of biomarker distributions in sediments
Coverage:
Latitude: 34.814830 * Longitude: 27.282660
Date/Time Start: 2001-11-21T00:00:00 * Date/Time End: 2001-11-21T00:00:00
Minimum DEPTH, sediment/rock: 3.5868 m * Maximum DEPTH, sediment/rock: 4.4638 m
Event(s):
M51/3_567_SL104 (567) * Latitude: 34.814830 * Longitude: 27.282660 * Date/Time: 2001-11-21T00:00:00 * Elevation: -2155.0 m * Recovery: 4.8 m * Campaign: M51/3 * Basis: Meteor (1986) * Method/Device: Gravity corer (Kiel type) (SL)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Obreht, Igor | Geocode | |
| 2 | AGE | Age | ka BP | Obreht, Igor | Geocode | |
| 3 | Crenarchaeol-caldarchaeol tetraether index | CCaT | Obreht, Igor | Mass spectrometry imaging (MSI) | ||
| 4 | Sea surface temperature | SST | °C | Obreht, Igor | calibrated | |
| 5 | Sea surface temperature, uncertainty | SST unc | ± | Obreht, Igor | calibrated |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
11634 data points
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