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Ahlborn, Marieke; Haberzettl, Torsten; Wang, Junbo; Alivernini, Mauro; Schlütz, Frank; Schwarz, Anja; Su, Youliang; Frenzel, Peter; Daut, Gerhard; Zhu, Liping; Mäusbacher, Roland (2014): Sedimentological, geochemical, micropaleontological and palynological sediment record of TT Lake, southern-central Tibetan Plateau [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.870568, Supplement to: Ahlborn, M et al. (2014): Sediment dynamics and hydrologic events affecting small lacustrine systems on the southern-central Tibetan Plateau - the example of TT Lake. The Holocene, 25(3), 508-522, https://doi.org/10.1177/0959683614561885

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Abstract:
A sedimentological, geochemical, micropaleontological, and palynological study of a lacustrine sediment record from the small TT Lake (southern-central Tibetan Plateau) shows that the background sedimentation was frequently interrupted by event-related deposits. These event-related deposits are interpreted as the result of hydrologic events that are triggered by above-average precipitation events. In total, 11 events were recorded in the TT Lake sequence. Two types can be differentiated: fluvial runoff events caused by precipitation that carried sediment in suspension into the lake and a sediment mass transport caused by torrential precipitation. The hydrologic events appear to be decoupled from long-term climate and environmental variations, but there is evidence that anthropogenic impact, in terms of pastoralism, might have favored the runoff events. The multi-proxy approach proved to be valuable and allowed for a detailed study of sedimentary processes within the lake and its watershed in order to assess their triggering processes and dynamics. The findings show the complexity of these sedimentary processes and their controlling factors, and the study aims to improve their understanding. This study is the first effort to investigate event-related deposits and sedimentary processes on the Tibetan Plateau and its triggering processes and dynamics by utilizing lacustrine sediment records.
Coverage:
Median Latitude: 31.102478 * Median Longitude: 86.572847 * South-bound Latitude: 31.100000 * West-bound Longitude: 86.570000 * North-bound Latitude: 31.103147 * East-bound Longitude: 86.573370
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
13 datasets

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Datasets listed in this publication series

  1. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): Age determination of sediment core TT_11-2. https://doi.org/10.1594/PANGAEA.870556
  2. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): Paleomagnetic of sediment core TT_11-2. https://doi.org/10.1594/PANGAEA.870565
  3. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): Age determination of sediment core TT_12-3. https://doi.org/10.1594/PANGAEA.870557
  4. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): Element analysis of sediment core TT_12-3. https://doi.org/10.1594/PANGAEA.870560
  5. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): Diatoms of sediment core TT_12-3. https://doi.org/10.1594/PANGAEA.870564
  6. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): XRF data of sediment core TTl12-3. https://doi.org/10.1594/PANGAEA.870569
  7. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): Grain size composition of sediment core TT_12-3. https://doi.org/10.1594/PANGAEA.870562
  8. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): Magnetic susceptibilty of sediment core TT_12-3. https://doi.org/10.1594/PANGAEA.870559
  9. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): Organic remains in sediment core TT_12-3. https://doi.org/10.1594/PANGAEA.870563
  10. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): Pollen record of sediment core TT_12-3. https://doi.org/10.1594/PANGAEA.870558
  11. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): Water content of sediment core TT_12-3. https://doi.org/10.1594/PANGAEA.870561
  12. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): Modern biological components in surface sediments of TT Lake. https://doi.org/10.1594/PANGAEA.870566
  13. Ahlborn, M; Haberzettl, T; Wang, J et al. (2014): Water temperature, pH, alkalinity and conductivity of TT Lake. https://doi.org/10.1594/PANGAEA.870567