Mineralogical and geochemical data from five lake sediment cores of Lake Donggi Cona ...

Sediments of Lake Donggi Cona on the northeastern Tibetan Plateau were studied to infer changes in the lacustrine depositional environment, related to climatic and non-climatic changes during the last 19 kyr. The lake today fills a 30 X 8 km big and 95 m deep tectonic basin, associated with the Kunl...

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Bibliographic Details
Main Authors: Opitz, Stephan, Wünnemann, Bernd, Aichner, Bernhard, Dietze, Elisabeth, Hartmann, Kai, Herzschuh, Ulrike, IJmker, Janneke, Lehmkuhl, Frank, Li, Shijie, Mischke, Steffen, Plotzki, Anna, Stauch, Georg, Diekmann, Bernhard
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2012
Subjects:
Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn
permafrost
Online Access:https://dx.doi.org/10.1594/pangaea.787780
https://doi.pangaea.de/10.1594/PANGAEA.787780
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Summary:Sediments of Lake Donggi Cona on the northeastern Tibetan Plateau were studied to infer changes in the lacustrine depositional environment, related to climatic and non-climatic changes during the last 19 kyr. The lake today fills a 30 X 8 km big and 95 m deep tectonic basin, associated with the Kunlun Fault. The study was conducted on a sediment-core transect through the lake basin, in order to gain a complete picture of spatiotemporal environmental change. The recovered sediments are partly finely laminated and are composed of calcareous muds with variable amounts of carbonate micrite, organic matter, detrital silt and clay. On the basis of sedimentological, geochemical, and mineralogical data up to five lithological units (LU) can be distinguished that document distinct stages in the development of the lake system.The onset of the lowermost LU with lacustrine muds above basal sands indicates that lake level was at least 39 m below the present level and started to rise after 19 ka, possibly in response to ... : Supplement to: Opitz, Stephan; Wünnemann, Bernd; Aichner, Bernhard; Dietze, Elisabeth; Hartmann, Kai; Herzschuh, Ulrike; IJmker, Janneke; Lehmkuhl, Frank; Li, Shijie; Mischke, Steffen; Plotzki, Anna; Stauch, Georg; Diekmann, Bernhard (2012): Late Glacial and Holocene development of Lake Donggi Cona, north-eastern Tibetan Plateau, inferred from sedimentological analysis. Palaeogeography, Palaeoclimatology, Palaeoecology, 337-338, 159-176 ...

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