scholarly journals Volcano- and climate-driven changes in atmospheric dust sources and fluxes since the Late Glacial in Central Europe

Geology ◽  
2012 ◽  
Vol 40 (4) ◽  
pp. 335-338 ◽  
Author(s):  
G. Le Roux ◽  
N. Fagel ◽  
F. De Vleeschouwer ◽  
M. Krachler ◽  
V. Debaille ◽  
...  
Keyword(s):  
Central Europe ◽  
Late Glacial ◽  
Atmospheric Dust ◽  
Dust Sources

A Holocene Record of Atmospheric Dust Deposition on the Penny Ice Cap, Baffin Island, Canada

2000 ◽  
Vol 53 (1) ◽  
pp. 62-69 ◽  
Author(s):  
Christian M. Zdanowicz ◽  
Gregory A. Zielinski ◽  
Cameron P. Wake ◽  
David A. Fisher ◽  
Roy M. Koerner
Keyword(s):  
Regional Scale ◽  
Late Glacial ◽  
Baffin Island ◽  
Dust Deposition ◽  
Atmospheric Dust ◽  
Ice Cap ◽  
Dust Sources ◽  
Snow Cover Extent ◽  
Atmospheric Dust Deposition ◽  
Glacial Time

AbstractAn >11,550-yr-long record of atmospheric dust deposition was developed from an ice core (P95) drilled through the Penny ice cap, Baffin Island. The P95 record documents environmental changes that affected the production and transport of dust in the eastern Canadian Arctic during the late Pleistocene and Holocene. Dust deposition on the Penny ice cap was greatest in late-glacial time when the climate was dry and windy and comparatively low in the Holocene. Microparticles deposited during late-glacial time are finer than in Greenland cores, suggesting distinct dust sources and transport trajectories to each region. Dust deposition at the P95 site increased after ca. 7800 yr ago as the Penny ice cap receded and distance from local dust sources was reduced. Deflation of newly exposed marine sediments on southwestern Baffin Island may have contributed to this dust increase. The P95 and GISP2 (Greenland) dust records show diverging trends in the middle to late Holocene, reflecting the growing influence of regional environmental conditions (e.g., dust source area, snow cover extent) on atmospheric dust deposition. This study further demonstrates how valuable records of regional-scale paleoenvironmental changes can be developed from small circum-Arctic ice caps, even those affected by considerable melt.

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.

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>

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

Report on the First Season's Fieldwork on British Upper Palaeolithic Cave Deposits

1959 ◽  
Vol 25 ◽  
pp. 260-269 ◽  
Author(s):  
C. B. M. McBurney
Keyword(s):  
Central Europe ◽  
Late Glacial ◽  
Research Fund ◽  
Upper Palaeolithic ◽  
Low Countries ◽  
Cave Deposits ◽  
Environmental Background ◽  
The University

During the Easter and Summer of 1958 a programme of investigations into British Upper Palaeolithic cave deposits was initiated on behalf of the Prehistoric Society, with the aid of a grant from the Research Fund. The work was further supported by the Crowther Beynon Fund of the Museum of Archaeology and Ethnology of Cambridge. Labour in the field was provided by students in the Department of Archaeology and Anthropology of the University, with notable assistance from several members of the Society in different areas.The prime objectives of the work, which is still in progress, are to define more precisely the character of the different stages in the British Upper Palaeolithic, and to study them against their chronological and environmental background. In this way it is hoped to throw light on wider problems of the relation of British finds to the rapidly emerging picture of the Late Glacial hunting communities of Central Europe and the Low Countries.

scholarly journals Modeling the mineralogy of atmospheric dust sources

1999 ◽  
Vol 104 (D18) ◽  
pp. 22243-22256 ◽  
Author(s):  
T. Claquin ◽  
M. Schulz ◽  
Y. J. Balkanski
Keyword(s):  
Atmospheric Dust ◽  
Dust Sources

scholarly journals Did thermophilous trees spread into central Europe during the Late Glacial?

2016 ◽  
Vol 212 (1) ◽  
pp. 15-18 ◽  
Author(s):  
Thomas Giesecke
Keyword(s):  
Central Europe ◽  
Late Glacial

scholarly journals Late Glacial Environmental and Climatic Changes from Synchronized Terrestrial Archives of Central Europe: The Network PROSIMUL

PAGES news ◽  
2004 ◽  
Vol 12 (2) ◽  
pp. 27-29 ◽  
Author(s):  
M Friedrich ◽  
A Lücke ◽  
A Schwalb ◽  
S Hanisch
Keyword(s):  
Central Europe ◽  
Late Glacial ◽  
Climatic Changes
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