PANGAEA_993838
Mass spectrometry imaging-generated µm-scale resolved alkenone-based sea surface temperature reconstruction during the Greenalnd Interstadial 1 from sediment core SO130_289KL, northeastern Arabian Sea
Obreht, Igor; Lückge, Andreas; Mohtadi, Mahyar; Zahajská, Petra; Schefuß, Enno; Scholz, Denis; Wörmer, Lars; Hällberg, Petter; Budsky, Alexander; Adolphi, Florian; Haug, Gerald H; Grosjean, Martin; Hinrichs, Kai-Uwe
Mass spectrometry imaging-generated µm-scale resolved alkenone-based sea surface temperature reconstruction during the Greenalnd Interstadial 1 from sediment core SO130_289KL, northeastern Arabian Sea
2026-05-06
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.993838
Investigator
Igor
Obreht
obrehtigor@gmail.com
Earth Science
DEPTH, sediment/rock
Age
Alkenone, unsaturation index UK'37
Sea surface temperature
Sea surface temperature, uncertainty
geoscientificInformation
Alkenones
Arabian Sea
GI-1
Kasten corer
Mass spectrometry imaging
monsoon variability
Sea surface temperature
SO130
SO130_289KL
SO130-289KL
UK'37
Mass spectrometry imaging (MSI)
SST calculated from alkenones
Sonne
1998-04-21
1998-04-21
Complete
23.122333
23.122333
66.497333
66.497333
2.8963 m (DEPTH, sediment/rock)
3.5497 m (DEPTH, sediment/rock)
unrestricted
CC-BY-4.0: Creative Commons Attribution 4.0 International
English
PANGAEA
Data Publisher for Earth & Environmental Science
https://www.pangaea.de/
Data Center Contact
Michael
Diepenbroek
info@pangaea.de
Leobener Str.
Bremen
Bremen
28359
Germany
online
16088 data points
text/tab-separated-values
This dataset contains sea surface temperature (SST) reconstructions derived from alkenone biomarkers measured in sediment core SO130_289KL (23°07.34′N, 66°29.84′E; 571 m water depth) collected from the northeastern Arabian Sea off the coast of Pakistan. The data focus on the Greenland Interstadial 1 (GI-1) interval (~14.7–12.9 ka), where finely laminated sediments allow high-resolution analysis. Measurements were performed using mass spectrometry imaging (MSI) on cryosectioned sediment slices with a spatial resolution of 200 µm. The dataset captures rapid SST variability associated with monsoon dynamics, including an abrupt warming of ~2°C during the transition from Heinrich Stadial 1 to GI-1. This dataset was generated to reconstruct high-frequency SST variability and assess the influence of South Asian monsoon systems on upper ocean conditions. Depth is presented as centimeters below seafloor (cmbsf) and age as before the year 2000 CE (b2k). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.993838"!
https://en.wikipedia.org/wiki/RV_Sonne
Sonne
DIF
9.4
2026-05-06
2026-05-07