PANGAEA_993862
Carbon (δ13C) and hydrogen (δD) isotope composition of leaf wax n-alkanes from sediment core SO130_289KL, northeastern Arabian Sea, reflecting hydroclimate and vegetation changes during the last deglaciation
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
Carbon (δ13C) and hydrogen (δD) isotope composition of leaf wax n-alkanes from sediment core SO130_289KL, northeastern Arabian Sea, reflecting hydroclimate and vegetation changes during the last deglaciation
2026-05-06
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.993862
Investigator
Igor
Obreht
obrehtigor@gmail.com
Earth Science
DEPTH, sediment/rock
Age
n-Alkane C31, δD
δ Deuterium, n-alkane C31, uncertainty
n-Alkane C31, δ13C
n-Alkane C31, δ13C, uncertainty
geoscientificInformation
Arabian Sea
hydroclimate
Indus basin
Kasten corer
Leaf wax
Monsoon
n-alkanes
SO130
SO130_289KL
Stable isotopes
Vegetation change
δ13C
δD
Gas chromatography - isotope ratio mass spectrometry (GC-IRMS)
Sonne
1998-04-21
1998-04-21
Complete
23.122333
23.122333
66.497333
66.497333
2.61 m (DEPTH, sediment/rock)
3.56 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
72 data points
text/tab-separated-values
This dataset contains stable carbon (δ13C) and hydrogen (δD) isotope measurements of long-chain n-alkanes (primarily n-C31) extracted from sediment core SO130_289KL (23°07.34′N, 66°29.84′E; 571 m water depth) from the northeastern Arabian Sea. The samples span the last deglaciation and were analyzed to reconstruct past hydroclimate and vegetation dynamics in the Indus River catchment. Lipid extracts were separated into fractions and analyzed using gas chromatography–isotope ratio mass spectrometry (GC-IRMS). δ13C values provide information on vegetation type (C3 vs. C4 plants), while δD values reflect precipitation isotopic composition after correcting for vegetation effects and global ice volume changes. Analytical precision is ±0.3‰ for δ13C and ±3‰ for δD. This dataset was generated to complement high-resolution marine proxy records generated by mass spectrometry and hyperspectral inaging and to link oceanographic variability with continental climate and monsoon-driven hydrological changes. 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.993862"!
https://en.wikipedia.org/wiki/RV_Sonne
Sonne
DIF
9.4
2026-05-06
2026-07-10