Lost in dating – Problems with the absolute chronologies and sedimentation rates of Late Glacial and Early Holocene oxbow lake deposits in Central Europe

2017 ◽  
Vol 41 ◽  
pp. 187-201 ◽  
Author(s):  
Piotr Kołaczek ◽  
Mariusz Gałka ◽  
Karina Apolinarska ◽  
Piotr Gębica ◽  
Sławomir Superson ◽  
...  
Keyword(s):  
Central Europe ◽  
Late Glacial ◽  
Early Holocene ◽  
Oxbow Lake ◽  
Sedimentation Rates ◽  
The Absolute ◽  
Lake Deposits

Fine laminated clastic deposits revealing the delay of the deglaciation timing in the High Tatras Mts. (Central Europe) to Early Holocene

2020 ◽  
Author(s):  
Dhavamani Ramachandran ◽  
Radovan Pipík ◽  
Timea Chamutiová ◽  
Lucia Žatková ◽  
Marina Vidhya ◽  
...  
Keyword(s):  
Central Europe ◽  
Late Glacial ◽  
Early Holocene ◽  
Age Dating ◽  
Tatra Mountains ◽  
East Central Europe ◽  
Tatra Mts ◽  
Cosmogenic Nuclide Dating ◽  
Late Glacial And Holocene ◽  
The Tatra Mountains

<p>The Tatra moraine relief and cosmogenic nuclide dating show glacier stabilizationand the maximum glacier extent in two phases,at26 – 21 ka and at 18 ka followed by a gradual retreat and  a termination of the glaciation during the Bølling/Allerød warming at 14.64 –12.9 ka (Makos etal., 2014). A renewed glaciation within the Younger Dryas (12.9 – 11.5 ka) formed smaller rock glaciers. This retreat was connected with the formation of the morainic, trough and cirque lakes and the beginning of light-grey silt sedimentation dated from 10ka to 16ka cal BP on the northern slopes of the Tatra Mountains and before 10ka cal BP on its southern slopes (Klapyta et al., 2016).</p><p>A new paleolimnic research led to a discovery of a cyclic fine laminated deposit in the four Tatra Mts. lakes. The laminae of thickness from 1 to 3 mm are built of couplets of light-coloured coarse detrital and fine dark-coloured laminae. Thicker light coloured laminae occasionally show a gradation ending in dark-coloured laminae. Laminae consist occasionally of low spherical angular grains of sand and gravel fractions, rarely up to size 10 mm which deformed underlying laminae. Light-coloured laminae are predominantly composed of quartz, followed by K-feldspar, plagioclase, mica, and clay-like particles. Dark-coloured laminae consist of clay-size clastic particles. These laminae were formed in cold, oxygen-rich, ultra-oligotrophic, slightly acid conditions in which the chironomids Pseudodiamesa nivosa and Micropsectra radialis-type dominated. We interpret these lamination as varves related to annual glacial melting. Once the valleys were ice-free, varve production stopped and a short deposition period of homogenous silt was replaced by gyttja. The radiometric C<sup>14</sup> age dating shows the deglaciation in the Tatra Mts terminated at the beginning of the Early Holocene, around 10ka cal BP – 9ka cal BP.</p><p> </p><p>The research was funded by APVV-15-0292 and the project Centre of Excellence for Integrated Research of the Earth's Geosphere, ITMS 26220120064.</p><p> </p><p>Klapyta P., Zasadni J., Pociask-Karteczka J., Gajda A., Franczak P., 2016. Late Glacial and Holocene Paleoenvironmental records in the Tatra Mountains, East-Central Europe, based on lake, peat bog and colluvial sedimentary data: A summary review. Quaternary International 415: 126-144.</p><p> </p><p>Makos M., Dzierzek J., Nitychoruk J., Zreda M., 2014. Timing of glacier advances and climate in the Tatra Mountains (Western Carpathians) during the Last Glacial Maximum. Quaternary Research 82: 1-13.</p>

Early Holocene hydrology and environments of the Ner River (Poland)

2016 ◽  
Vol 85 (2) ◽  
pp. 187-203 ◽  
Author(s):  
Piotr Kittel ◽  
Mateusz Płociennik ◽  
Ryszard K. Borόwka ◽  
Daniel Okupny ◽  
Dominik Pawłowski ◽  
...  
Keyword(s):  
Climate Changes ◽  
Late Glacial ◽  
Reference Points ◽  
Early Holocene ◽  
Oxbow Lake ◽  
Pollen Data ◽  
Overbank Sediments ◽  
Winter Temperatures ◽  
Organic Deposits ◽  
Boreal Period

The Ner River valley (central Poland) underwent substantial transformation during the Weichselian–Holocene transition as a result of fluvial processes and climate changes, resulting in the establishment of its present shape in the Holocene. A multiproxy study based on organic deposits from a palaeochannel fill (Lutomiersk–Koziówki) shows that after the channel was cut off during the late glacial termination, it became a shallow oxbow, fed by local springs. In the Boreal period, the oxbow lake was also fed by precipitation and became a telmatic environment overgrown by rush and swamp vegetation. Finally, it was covered by overbank deposits. The first flooding phase (9900–9600 cal. BP) was followed by the accumulation of overbank sediments (after 9500 cal. BP) and flooding increased after ca. 9300–9000 cal. BP. Pollen data provide information on the regional vegetation context for local and regional changes. In the Atlantic period, an increase in both summer and winter temperatures is inferred from the pollen data, corresponding to an expansion of thermophilous deciduous forests. While in general, flooding phases of the Early Holocene are poorly recognised in Eastern Europe, the Lutomiersk–Koziówki site may be considered as one of the reference points for this phenomenon in the region.

scholarly journals Late Glacial and early Holocene development of an oxbow lake in Central Europe (Poland) based on plant macrofossil and geochemical data

The Holocene ◽  
2019 ◽  
Vol 30 (1) ◽  
pp. 178-189 ◽  
Author(s):  
Mariusz Gałka ◽  
Agnieszka Lewandowska ◽  
Przemysław Niedzielski ◽  
Thomas G Sim ◽  
Graeme T Swindles ◽  
...  
Keyword(s):  
Water Level ◽  
Cold Water ◽  
Late Glacial ◽  
Early Holocene ◽  
Oxbow Lake ◽  
Geochemical Data ◽  
Ceratophyllum Demersum ◽  
Plant Macrofossil ◽  
Glacial Origin ◽  
The North

Sediments from an oxbow lake located in the Prosna River valley (Poland) were analysed to investigate the developmental history of the wetland ecosystem and any response to abrupt climatic changes. High resolution plant macrofossil analysis and radiocarbon dating were undertaken on two cores, with lower resolution geochemical analysis conducted on one of these cores. We provide evidence of a palaeolake with a late Glacial origin (older than 12,500 years). Abundant fossil presence of macrophytes (e.g. multiple Potamogeton species) in the studied palaeomeander may indicate that the north–south orientation of the Prosna valley made it an important route for the spreading of aquatic plants during the late Glacial. Chara sp., Batrachium sp. and Potamogeton spp. were the pioneer plants that colonised cold water with a high Ca2+ content. Early Holocene warming trigged a decrease in water level at the oxbow lake and facilitated the expansion of thermophilous water plants, for example, Ceratophyllum demersum, Typha sp. and Lemna trisulca, which usually occur in shallow water. A decreasing water level resulted in the gradual isolation of the study site from the influence of groundwater, leading to acidification of the habitat and the development of a Sphagnum population, with S. contortum and S. teres as dominant species. The presence of S. contortum (the oldest occurrence in the European lowlands) and S. teres during the early Holocene may indicate that river valleys and the peatlands that developed in this region acted as an important habitats (and possibly refugia) for some minerotrophic Sphagnum species.

Persist or take advantage of global warming: A development of Early Holocene riparian forest and oxbow lake ecosystems in Central Europe

2018 ◽  
Vol 200 ◽  
pp. 191-211 ◽  
Author(s):  
Piotr Kołaczek ◽  
Mateusz Płóciennik ◽  
Mariusz Gałka ◽  
Karina Apolinarska ◽  
Kamila Tosik ◽  
...  
Keyword(s):  
Global Warming ◽  
Central Europe ◽  
Riparian Forest ◽  
Early Holocene ◽  
Oxbow Lake ◽  
Lake Ecosystems

scholarly journals Holocene vegetation, fire and land use dynamics at Lake Svityaz, an agriculturally marginal site in northwestern Ukraine

2021 ◽  
Author(s):  
Christoph Schwörer ◽  
Erika Gobet ◽  
Jacqueline F. N. van Leeuwen ◽  
Sarah Bögli ◽  
Rachel Imboden ◽  
...  
Keyword(s):  
Bronze Age ◽  
Human Impact ◽  
Central Europe ◽  
Large Scale ◽  
Mixed Forest ◽  
Fire Risk ◽  
Late Glacial ◽  
Future Climate Change ◽  
Agricultural Activity ◽  
Fire Dynamics

AbstractObserving natural vegetation dynamics over the entire Holocene is difficult in Central Europe, due to pervasive and increasing human disturbance since the Neolithic. One strategy to minimize this limitation is to select a study site in an area that is marginal for agricultural activity. Here, we present a new sediment record from Lake Svityaz in northwestern Ukraine. We have reconstructed regional and local vegetation and fire dynamics since the Late Glacial using pollen, spores, macrofossils and charcoal. Boreal forest composed of Pinus sylvestris and Betula with continental Larix decidua and Pinus cembra established in the region around 13,450 cal bp, replacing an open, steppic landscape. The first temperate tree to expand was Ulmus at 11,800 cal bp, followed by Quercus, Fraxinus excelsior, Tilia and Corylus ca. 1,000 years later. Fire activity was highest during the Early Holocene, when summer solar insolation reached its maximum. Carpinus betulus and Fagus sylvatica established at ca. 6,000 cal bp, coinciding with the first indicators of agricultural activity in the region and a transient climatic shift to cooler and moister conditions. Human impact on the vegetation remained initially very low, only increasing during the Bronze Age, at ca. 3,400 cal bp. Large-scale forest openings and the establishment of the present-day cultural landscape occurred only during the past 500 years. The persistence of highly diverse mixed forest under absent or low anthropogenic disturbance until the Early Middle Ages corroborates the role of human impact in the impoverishment of temperate forests elsewhere in Central Europe. The preservation or reestablishment of such diverse forests may mitigate future climate change impacts, specifically by lowering fire risk under warmer and drier conditions.

From fish and seal to sheep and cattle: new research into the process of neolithisation in northern Germany

2007 ◽  
Author(s):  
Sönke Hartz ◽  
Harald Lübke ◽  
Thomas Terberger
Keyword(s):  
Central Europe ◽  
Early Holocene ◽  
Northern Germany ◽  
Subsistence Strategy ◽  
New Research

The border between the Mesolithic and the Neolithic in Central Europe is traditionally defined on the basis of subsistence strategy. It is the development from hunter-gatherer groups in the forests of the early Holocene to the first farmers. The debate on the character of this process has been going on for over 100 years. This chapter presents results of new research on this subject, with an emphasis on northern Germany.

Human-environment relationships during the Late Glacial-Early Holocene transition: some examples from Campania, Calabria and Sicily

2009 ◽  
pp. 89-94 ◽  
Author(s):  
Fabio Martini ◽  
Andre Carlo Colonese ◽  
Zelia di Giuseppe ◽  
Massimiliano Ghinassi ◽  
Domenico Lo Vetro ◽  
...  
Keyword(s):  
Late Glacial ◽  
Early Holocene ◽  
Human Environment
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