Palaeoenvironmental and climate changes recorded in the lacustrine sediments of the Eemian Interglacial (MIS 5e) in the Radom Plain (Central Poland)

2018 ◽  
Vol 467 ◽  
pp. 147-160 ◽  
Author(s):  
Marcin Żarski ◽  
Hanna Winter ◽  
Magdalena Kucharska
Keyword(s):  
Climate Changes ◽  
Lacustrine Sediments ◽  
Central Poland ◽  
Mis 5E ◽  
Eemian Interglacial

scholarly journals Late Saalian and Eemian Interglacial at the Struga site (Garwolin Plain, central Poland)

2018 ◽  
Vol 58 (2) ◽  
pp. 219-229
Author(s):  
Aleksandra Bober ◽  
Irena Agnieszka Pidek ◽  
Marcin Żarski
Keyword(s):  
Boreal Forest ◽  
Forest Communities ◽  
Central Poland ◽  
Early Appearance ◽  
Mis 5E ◽  
Eemian Interglacial ◽  
Pollen Analyses

AbstractThe paper reports pollen analyses of 47 samples from palaeolake sediments at WH-15 Struga near Puznówka on the Garwolin Plain in central Poland. The pollen succession covers Late Saalian (MIS-6) and fully developed Eemian (MIS-5e) successions. The Late Saalian section is well developed (more than 2 m thick) and contains sub-zones reflecting the alternating dominance of steppe-tundra and boreal forest communities. The analysed Eemian succession is an uncommon succession described as a variant with early appearance and culmination of Tilia. In these terms, the successions of WH-15 Struga resemble those of sites of the Eemian interglacial known from the vicinity of Warsaw: Błonie, Warszawa-Żoliborz and Warszawa-Wola. The WH-15 Struga site is one of several recently discovered fossil sites of Eemian lakes on the Garwolin Plain, constituting the southern fragment of the extensive Eemian lakeland in the Polish Lowland.

scholarly journals The usefulness of subfossil Cladocera remains in Younger Dryas climatic reconstructions in central Poland

2017 ◽  
Vol 67 (4) ◽  
pp. 567-584 ◽  
Author(s):  
Dominik Pawłowski
Keyword(s):  
Climate Changes ◽  
Lacustrine Sediments ◽  
Younger Dryas ◽  
Oxbow Lakes ◽  
Central Poland ◽  
Cladocera Remains ◽  
Temperature Reconstructions ◽  
Two Phases ◽  
Study Sites ◽  
Geomorphological Features

Abstract Cladoceran-based paleotemperature estimates for the Younger Dryas for ten sections of paleo-oxbow lakes, valley mires, and lacustrine sediments from central Poland are presented, and their potential usefulness to climatostratigraphy is described. Most of the changes observed in the cladoceran assemblages are responses to climate changes. The cladoceran-based temperature reconstructions reflect cold conditions during the Younger Dryas (YD) and allow a division of this period into two phases: an older colder phase, between 12,800 and 12,000 cal yrs BP, and a younger, warmer phase, between ca. 12,000 and 11,500 cal yrs BP. The geomorphological features of the study sites and local environmental forces are also taken into consideration. The cladoceran-inferred summer temperature estimates from all of the study sites correspond closely with the available climate reconstruction for the YD in central Europe.

scholarly journals Optical Stimulation Luminescence Dating of Deltas Revealed the Early to Mid-Holocene Lake-level Fluctuations of Daihai, Inner Mongolia, Northern China

2021 ◽  
Vol 9 ◽  
Author(s):  
Shixin Huang ◽  
Xi Chun
Keyword(s):  
Lake Level ◽  
Climate Changes ◽  
Asian Summer Monsoon ◽  
Regional Climate ◽  
Lacustrine Sediments ◽  
Northern China ◽  
Luminescence Dating ◽  
Lake Area ◽  
Monsoon Precipitation ◽  
Lake Level Fluctuations

Lake-level reconstruction of inland enclosed lakes especially for monsoon-sensitive areas is of great significance to reveal regional climate changes. Daihai, a typical enclosed lake at the marginal of the East Asian summer monsoon (EASM) area in north China, is sensitive to climate changes due to its unique regional characteristics. There were a series of lakeshore terraces, highstand lacustrine sediments, and braided river deltas, providing sufficient geomorphologic and stratigraphic evidence for the reconstruction of lake-level fluctuations of Daihai. Reconstructed lake-level variations during the early and mid-Holocene were constructed based on 22 quartz optical stimulated luminescence (OSL) ages from six well-preserved profiles around Daihai Basin. Our results indicated Daihai showed a relatively low level at 10.2 ka, and a gradually increasing lake level following the enhanced monsoon precipitation during the mid-Holocene. Specifically, the high lake level began to develop at 8.1 ka and reached the maximum at 5.2 ka, with ∼40 m higher than present. At this time, the lake area expanded to ∼400 km2, approximately six times as large as that of present, corresponding to the maximum monsoon precipitation and intensity of EASM during the mid-Holocene. However, our stratigraphic records showed a part of the depositional records in the north and east of the Daihai was missed after 5.2 ka, probably indicating a sudden drop of the Daihai lake level. These rapid level fluctuations were likely to be interpreted by some local scenarios and need to be further investigated in the future. Overall, the lake-level fluctuation of Daihai during the early and mid-Holocene was slightly different from that observed in the previously published regional records. Possibly, the interaction of the EASM and regional feedback from topography, and hydrology factors might have contributed to the spatial complexity and distinction.

Stratigraphy and chronology of Late Pleistocene loess-paleosol sequence of the East European Plain and correlation with Late Pleistocene archives of Europe

2021 ◽  
Author(s):  
Svetlana Sycheva ◽  
Manfred Frechen ◽  
Birgit Terhorst ◽  
Sergey Sedov ◽  
Olga Khokhlova
Keyword(s):  
Late Pleistocene ◽  
Forest Fire ◽  
Western Europe ◽  
East European Plain ◽  
East European ◽  
Mis 3 ◽  
Soil Sediment ◽  
Rfbr Grant ◽  
Mis 5E ◽  
Eemian Interglacial

<p>A detailed pedocryostratigraphic scheme of the Late Pleistocene periglacial region of the East European Plain has been developed on the basis of study of the paleorelief, sediments, paleosols, and cryogenic horizons. OSL and <sup>14</sup>C-dating of paleosols and sediments in Aleksandrov quarry and in other sections made it possible to substantiate this scheme and correlate it with analogous ones for different regions of Europe. The loess-paleosol sequence in Aleksandrov quarry (51º05'N, 36º08'E) does not have an analogous with respect to the completeness in the whole East European Plain. In the filling of paleobalka the Ryshkovo paleosol of the Mikulino interglacial (MIS 5e) is observed. Over this paleosol, the Valdai soil-sediment series (MIS 5d – MIS 2) is located. It includes four interstadial soils, two of them of the Early Valdai (Kukuevo and Streletsk ones), and two, sometimes three, of the Middle Valdai (Aleksandrov, Hydrouzel и Bryansk ones). The OSL date, 127 ± 8 ka BP, (beginning of MIS 5e) was obtained for a sample taken from the bottom of the Ryshkovo soil. The interglacial soil is overlain by the Seym layer formed mainly from destroyed and redeposited horizons of this soil. For the upper part of the Seym layer, OSL dates of 115 ± 7 ka BP and 112 ± 20 ka BP were obtained (MIS 5d). But the process of burial of Ryshkovo soil in the bottom of the paleobalka began at the end of the interglacial after a catastrophic forest fire. Large post-permafrost deformations - pseudomorphosis is confined to Selikhovodvor loess - MIS 4 (65 ± 8 ka BP). Two soils occurring between Seym and Selikhovodvor loesses: Kukuevo and Streletsk - Early Valdai (MIS 5c and MIS 5a). For Mlodat loess which separates those two soils (MIS 5b), OSL dates of 91 ± 1 and 89 ± 7 ka BP were obtained. For paleosols of Middle Valdai (MIS 3), <sup>14</sup>C-dates were obtained: Aleksandrov (53.742 - 2.124 ka cal BP) and Bryansk soils (37.618 ± 0.668 ka cal BP). For Tuskar loess, which separates Alexandrov and Bryansk soils, OSL dates of 50 ± 3 and 51 ± 3 ka BP were obtained. The new stratigraphic scheme of Late Pleistocene agrees with the ideas of researchers from Eastern, Central, and Western Europe , which allows the following correlations. The identified paleosols correspond to the following intervals: Ryshkovo – Eemian interglacial (127-117 ka BP); Kukuevo to Amersfoort + Brørup – Saint-Germain 1 (105-95 ka BP); Streletsk – Odderade to Saint-Germain 2 (about 85-75 ka BP); Aleksandrov to Oerel (56-53 ka BP); Hydrouzel to Moershoofd – Poperinge (44-45 ka BP) and Hengelo (40-38 ka BP); and Bryansk (33-27 ka BP) to Stillfried B, Denekamp or Grand Bois interstadials. The reconstructed Late Pleistocene loess-paleosol sequence has the most similar structure with loess-paleosol sequences of Ukraine, with sequence Dolní Věstonice in Moravia (Czech Republik), Stillfried in Austria and Mainz-Weisenau in the Rhenish area (Germany), and other archives. <strong>This work was supported by RFBR, grant N19-29-05024 mk. </strong></p>

Oxygen-isotope geothermometers in lacustrine sediments: New insights through combined δ18O analyses of aquatic cellulose, authigenic calcite and biogenic silica in Lake Gościąż, central Poland

2010 ◽  
Vol 74 (10) ◽  
pp. 2957-2969 ◽  
Author(s):  
Kazimierz Rozanski ◽  
Monika A. Klisch ◽  
Przemyslaw Wachniew ◽  
Zbigniew Gorczyca ◽  
Tomasz Goslar ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Biogenic Silica ◽  
Lacustrine Sediments ◽  
Central Poland

scholarly journals Changing depositional environments in the Colombian Fúquene Basin at submillennial time-scales during 284-27 ka from unmixed grain-size distributions and aquatic pollen

2012 ◽  
Vol 91 (1-2) ◽  
pp. 199-214 ◽  
Author(s):  
M. Vriend ◽  
M.H.M. Groot ◽  
H. Hooghiemstra ◽  
R.G. Bogotá-Angel ◽  
J.C. Berrio
Keyword(s):  
Grain Size ◽  
Lacustrine Sediments ◽  
Depositional Environments ◽  
Organic Carbon Content ◽  
Size Distributions ◽  
Glacial Cycles ◽  
Available Energy ◽  
Grain Size Distributions ◽  
Drilling Site ◽  
Mis 5E

AbstractIn a ~60 m long record reflecting the period from 284 ka to 27 ka we analysed grain size distributions (GSD), organic carbon content, and aquatic pollen assemblages at 1-cm increments. The 4768-points time series show with ~60 yr resolution the dynamic history of Lake Fúquene (2540 m alt., 4° N lat.) of the northern Andes during two full interglacial-glacial cycles. GSD show proportions of clay, fine silt, coarse silt, and sand evidencing the location of the sediment source (proximal vs distal) in relation to the drilling site, and available energy to transport sediments in the catchment area. Loss-on-ignition (LOI) values reflect estimates of the abundance of organic matter (OM) in the sediments. Aquatic pollen were grouped into assemblages characteristic of deep water, shallow water, swamp, and wet lake shore environments, reflecting a hydrological gradient sensitive for lake level changes.The End-Member Modelling Algorithm (EMMA) showed that 4 end-members (EMs) explain an optimal proportion (70%) of the observed variation. EMMA is able to unmix GSD of lacustrine sediments in a genetically meaningful way allowing EMs to be interpreted in past depositional and environmental settings. Most unexplained variability is located in the fraction of coarse sediment. OM content was estimated on the basis of LOI data and formed a fifth EM that mainly indicates presence of peat. Changes concur with submillennial-scale variability established in other proxies from this record (Groot et al., 2011). Periods with distinct sediment compositions are 284-243 ka (mainly MIS 8), 243-201 ka (mainly MIS 7), 201-179 ka (mainly MIS 7/6 transition), 179-133 ka (mainly MIS 6), 133-111 ka, (mainly MIS 5e) 111-87 ka (mainly MIS 5d-5b), 87-79 ka (mainly MIS 5a), 79-62 ka (mainly MIS 4), and 62-27 ka (MIS 3) showing sedimentological regimes are climate driven.

scholarly journals Small mammal fauna in Europe during the second half of the Middle Pleistocene

2017 ◽  
Vol 73 (1-2) ◽  
pp. 48-66 ◽  
Author(s):  
Anastasia K. Markova ◽  
Andrey Yu. Puzachenko
Keyword(s):  
Small Mammal ◽  
Middle Pleistocene ◽  
Integrated Analysis ◽  
Time Intervals ◽  
East European ◽  
Mammal Fauna ◽  
Evolutionary Changes ◽  
Mis 5E ◽  
Eemian Interglacial ◽  
West European

Evolutionary changes in European small mammals during the second half of the Middle Pleistocene, from the Likhvin (Holsteinian, Hoxnian) Interglacial (MIS 11) to the beginning of the Mikulino (Eemian) Interglacial (MIS 5e), that is between 424 ka BP and 130 ka BP were traced. Trends in evolutionary change were documented, and East European and West European faunas were compared. An integrated analysis of available theriological, geological, and geochronological data for the second half of the Middle Pleistocene in Europe has shown marked changes in the small mammal fauna throughout the period under consideration and provided information on the climate and environments at different time intervals. Changes traceable in the Arvicolinae phyletic lines made a correlation between the West European and East European mammal localities possible. The biostratigraphic scheme of the second half of the Middle Pleistocene has been developed and maps of small mammal localities compiled.

scholarly journals DETECTION OF CHANGE IN DROUGHT FREQUENCY IN BYDGOSZCZ REGION, CENTRAL POLAND

2018 ◽  
Author(s):  
Renata KUŚMIEREK-TOMASZEWSKA ◽  
Stanisław DUDEK ◽  
Jacek ŻARSKI
Keyword(s):  
Climate Changes ◽  
Atmospheric Precipitation ◽  
Weather Conditions ◽  
Positive Trend ◽  
Drought Frequency ◽  
Significant Positive Trend ◽  
Central Poland ◽  
Ipcc Report ◽  
The University ◽  
Very High

The aim of the work, carried out within the framework of research on currently occurring rather than predicted climate changes, was to confirm or deny the hypothesis of increasing incidence of droughts in central Poland (the Bydgoszcz region) over the years 1986-2015. According to projections of climate change, the variability and extremity of weather conditions are expected to increase. In studies conducted under some climate scenarios, it was shown that atmospheric precipitation variability in central Poland will increase even to 20%, depending on the scenario. Some researches indicate that these changes are already taking place. The material was the data of precipitation measurements gained from weather station, located in a poorly urbanized area, at the Research Center of the University of Science and Technology. Totals of atmospheric precipitation in the 30-year period were analyzed (1986-2015). Dry periods in individual months, seasons, half-years and entire years were identified on the basis of the relative precipitation index (RPI). The precipitation totals in the years 1986-2015 were characterized by a very high temporal variability and thus increased the climatic risk of plants cultivation. The significant positive trend of precipitation totals was found only for the cold half-year, which is consistent with the projections of the IPCC report. The frequency of the occurrence dry months was 38.6%, of seasons 38.3%, half-years 35.0% and years 30.0%. There was noted no increasing frequency of dry periods with years; just to the contrary, a decreasing tendency was identified.

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