Koutsodendris, Andreas; Sachse, Dirk; Appel, Erwin; Herb, Christian; Fischer, Tobias; Fang, Xiaomin; Pross, Jörg (2018): Biomarker and pollen in core SG-1 from Tibetan Plateau spanning the Mid-Pleistocene Transition [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.896040, Supplement to: Koutsodendris, A et al. (2018): Prolonged monsoonal moisture availability preconditioned glaciation of the Tibetan Plateau during the mid‐Pleistocene transition. Geophysical Research Letters, 45, 13020-13030, https://doi.org/10.1029/2018GL079303
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Paleohydrological data comprising pollen assemblages and leaf-wax hydrogen isotopes (δDwax) from paleolake sediments in the Qaidam Basin (China) provide evidence for a link between increased moisture availability on the Tibetan Plateau and global cooling during the Mid-Pleistocene Transition. Notably, they document the persistence of humid and cold conditions during Marine Isotope Stages 24–22 (936–866 ka) suggesting that boundary conditions favorable for extended glaciation on the Tibetan Plateau first developed at ~900 ka. Our δDwax results indicate a strong influence of proximal (monsoonal) moisture sources during that glacial, in agreement with the intensification of the inter-hemispheric moisture transport resulting from Antarctic ice-volume increase at ~900 ka. The consistency of our results with other marine and terrestrial climate datasets suggests that extended glaciation on the Tibetan Plateau may have initiated ~500 ka earlier than previously assumed, implying that mid-latitude ice sheets actively contributed to global cooling during the Mid-Pleistocene Transition.
Coverage:
Latitude: 38.409700 * Longitude: 92.509200
Event(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
2 datasets
Download Data
Datasets listed in this publication series
- Koutsodendris, A; Sachse, D; Appel, E et al. (2018): Concentrations of n-alkanes C29 and C31, δD nC29 and nC31 values, Artemisia and Chenopodiaceae pollen percentages and calcium carbonate spanning the Mid-Pleistocene Transition on depth and age scales for the SG-1 core. https://doi.org/10.1594/PANGAEA.896038
- Koutsodendris, A; Sachse, D; Appel, E et al. (2018): Percentages of pollen taxa spanning the Mid-Pleistocene Transition on depth and age scales for the SG-1 core. https://doi.org/10.1594/PANGAEA.896039