Wagner, Bernd; Ortlepp, Sabrina; Kenig, Fabien; Doran, Peter T; Melles, Martin (2011): Sedimentology and age on profile Lz1023 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.759515, Supplement to: Wagner, B et al. (2010): Palaeoenvironmental implications derived from a piston core from east lobe Bonney, Taylor Valley, Antarctica. Antarctic Science, 22(5), 522-530, https://doi.org/10.1017/S0954102010000556
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Abstract:
A 270 cm long sediment sequence was recovered with a piston corer from east lobe Bonney, Taylor Valley, Antarctica, and characterized according to its sedimentological, mineralogical, and geochemical properties. It is the first record of such length recovered from east lobe Bonney. The sediment core is mainly composed of halite crystals of different sizes, water, and a relatively low and stable proportion of clastic particles. Although the sediment surface was probably disturbed by the coring process and absence or low contents of organic material or carbonates hampers the establishment of a robust chronology by radiocarbon dating, the core probably contains at least several hundred years of information about the history of the lake and the Bonney basin. Variations in halite crystal sizes and amount as well as variations in the composition of clastic material can be related to past lake level changes and evaporation cycles.
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Latitude: -77.714860 * Longitude: 162.436930
Event(s):
Lz1023-1 * Latitude: -77.714860 * Longitude: 162.436930 * Lake water depth: 38.3 m * Recovery: 2.71 m * Location: Lake Bonney, East Antarctica * Campaign: TaylorValley2002 * Basis: Sampling/drilling in lake * Method/Device: Piston corer (PC)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Wagner, B; Ortlepp, S; Kenig, F et al. (2011): Table 1. Radiocarbon dates of carbonates from a bulk sediment sample of core Lz1023, East Lake Bonney. https://doi.org/10.1594/PANGAEA.759514
- Wagner, B; Ortlepp, S; Kenig, F et al. (2009): Sedimentology on East Lake Bonney core Lz1023-1. https://doi.org/10.1594/PANGAEA.726329