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Lauterbach, Stefan; Brauer, Achim; Andersen, Nils; Danielopol, Dan L; Dulski, Peter; Hüls, Matthias; Milecka, Krystyna; Namiotko, Tadeusz; Plessen, Birgit; von Grafenstein, Ulrich; DecLakes participants (2010): Results of a sediment profile and water analyses from Lake Hancza in northeastern Poland. PANGAEA, https://doi.org/10.1594/PANGAEA.743125, Supplement to: Lauterbach, S et al. (2010): Multi-proxy evidence for early to mid-Holocene environmental and climatic changes in northeastern Poland. Boreas, 40(1), 57-72, https://doi.org/10.1111/j.1502-3885.2010.00159.x

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Abstract:
We investigated the sedimentary record of Lake Hancza (northeastern Poland) using a multi-proxy approach, focusing on early to mid-Holocene climatic and environmental changes. AMS 14C dating of terrestrial macrofossils and sedimentation rate estimates from occasional varve thickness measurements were used to establish a chronology. The onset of the Holocene at c. 11600 cal. a BP is marked by the decline of Lateglacial shrub vegetation and a shift from clastic-detrital deposition to an autochthonous sedimentation dominated by biochemical calcite precipitation. Between 10000 and 9000 cal. a BP, a further environmental and climatic improvement is indicated by the spread of deciduous forests, an increase in lake organic matter and a 1.7% rise in the oxygen isotope ratios of both endogenic calcite and ostracod valves. Rising d18O values were probably caused by a combination of hydrological and climatic factors. The persistence of relatively cold and dry climate conditions in northeastern Poland during the first one and a half millennia of the Holocene could be related to a regional eastern European atmospheric circulation pattern. Prevailing anticyclonic circulation linked to a high-pressure cell above the retreating Scandinavian Ice Sheet might have blocked the influence of warm and moist Westerlies and attenuated the early Holocene climatic amelioration in the Lake Hancza region until the final decay of the ice sheet.
Other version:
Lauterbach, Stefan; Brauer, Achim; Andersen, Nils; Danielopol, Dan L; Dulski, Peter; Hüls, Matthias; Milecka, Krystyna; Namiotko, Tadeusz; Plessen, Birgit; von Grafenstein, Ulrich; Participants DECLAKES (2010): Supplementary material to Lauterbach et al. (2010): Multi-proxy evidence for early to mid-Holocene environmental and climatic changes in northeastern Poland. Deutsches GeoForschungsZentrum GFZ, https://doi.org/10.1594/GFZ.SDDB.1321
Coverage:
Median Latitude: 54.252651 * Median Longitude: 22.731475 * South-bound Latitude: 50.062000 * West-bound Longitude: 18.900000 * North-bound Latitude: 56.950000 * East-bound Longitude: 24.100000
Date/Time Start: 1975-01-01T00:00:00 * Date/Time End: 2005-09-03T00:00:00
Event(s):
JH05 * Latitude: 54.266700 * Longitude: 22.816700 * Elevation: 229.0 m * Recovery: 8.2 m * Location: Lake Hancza, Suwazki-Augustów Lake District, northeastern Poland * Method/Device: Piston corer, UWITEC (PCUWI) * Comment: Composite profile consisting of cores JH05_03 and JH05_04; DEPTH are given as composite depth.
Comment:
ESF project DecLakes (Decadal Holocene and Lateglacial variability of the oxygen isotopic composition in precipitation over Europe reconstructed from deep-lake sediments)
Size:
11 datasets

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Datasets listed in this publication series

  1. Lauterbach, S; Brauer, A; Andersen, N et al. (2010): Age model of composite core JH05. https://doi.org/10.1594/PANGAEA.743109
  2. Lauterbach, S; Brauer, A; Andersen, N et al. (2010): Stable isotope ratios of endogenic calcite from composite core JH05. https://doi.org/10.1594/PANGAEA.743113
  3. Lauterbach, S; Brauer, A; Andersen, N et al. (2010): Lighness of composite core JH05. https://doi.org/10.1594/PANGAEA.743110
  4. Lauterbach, S; Brauer, A; Andersen, N et al. (2010): Fig. 7. Relative abundance of ostracod species in composite core JH05. https://doi.org/10.1594/PANGAEA.743115
  5. Lauterbach, S; Brauer, A; Andersen, N et al. (2010): Pollen record (relative abundance) in composite core JH05. https://doi.org/10.1594/PANGAEA.743117
  6. Lauterbach, S; Brauer, A; Andersen, N et al. (2010): Pollen record (counts) in composite core JH05. https://doi.org/10.1594/PANGAEA.744043
  7. Lauterbach, S; Brauer, A; Andersen, N et al. (2010): Stable isotope ratios from ostracods in composite core JH05. https://doi.org/10.1594/PANGAEA.743114
  8. Lauterbach, S; Brauer, A; Andersen, N et al. (2010): Carbon analysis on composite core JH05. https://doi.org/10.1594/PANGAEA.743112
  9. Lauterbach, S; Brauer, A; Andersen, N et al. (2010): XRF element scanning on composite core JH05. https://doi.org/10.1594/PANGAEA.743111
  10. Lauterbach, S; Brauer, A; Andersen, N et al. (2010): Table 1. Stable oxygen and hydrogen isotope composition of modern water samples from Lake Hancza and regional precipitation. https://doi.org/10.1594/PANGAEA.743119
  11. Lauterbach, S; Brauer, A; Andersen, N et al. (2010): Table 2. AMS14C dates obtained from terrestrial macrofossils from the Lake Hancza sediment core. https://doi.org/10.1594/PANGAEA.743120