Sedimentation settings and the late pleistocene-holocene geochronology in the Vychegda River valley

2014 ◽  
Vol 455 (1) ◽  
pp. 223-228 ◽  
Author(s):  
N. E. Zaretskaya ◽  
A. V. Panin ◽  
Yu. V. Golubeva ◽  
A. V. Chernov
Keyword(s):  
Late Pleistocene ◽  
River Valley ◽  
Sedimentation Settings

scholarly journals Pleistocene horses (genus Equus) in the central Balkans

2003 ◽  
pp. 55-75 ◽  
Author(s):  
Ann Forsten ◽  
Vesna Dimitrijevic
Keyword(s):  
Late Pleistocene ◽  
River Valley ◽  
Middle Pleistocene ◽  
Mountainous Area ◽  
Migration Routes ◽  
Northern Greece ◽  
The North ◽  
Time Period ◽  
Morava River ◽  
River Valleys

A review of the fossil horses of the genus Equus from the central Balkans, a mountainous area comprising Serbia and Montenegro, is presented in this paper. The time period covered by the finds is from the late Early to and including the Late Pleistocene, but the record is not complete: the dated finds are Late Pleistocene in age, while Early and Middle Pleistocene are poorly represented. The horses found resemble those from neighbouring countries from the same time period, probably showing the importance of river valleys as migration routes. The Morava River valley runs in a roughly south-to-north direction, connecting, via the Danube and Tisa River valleys the Hungarian Pannonian Plain in the north with northern Greece in the south, via the Vardar River valley in Macedonia. In Pleistocene, large mammals, including horses, probably used this route for dispersal.

The First Results of Tephrochronological Study of Late Pleistocene–Holocene Volcanic Eruptions in the Zhom–Bolok River Valley (Eastern Sayan)

2019 ◽  
Vol 486 (1) ◽  
pp. 503-506 ◽  
Author(s):  
A. A. Shchetnikov ◽  
E. V. Bezrukova ◽  
E. V. Kerber ◽  
O. Yu. Belozerova ◽  
M. I. Kuzmin ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Volcanic Eruptions ◽  
River Valley ◽  
First Results ◽  
Eastern Sayan

Late Pleistocene-Holocene coseismic deformations in the Malyi Yaloman River Valley (Gorny Altai)

2015 ◽  
Vol 56 (9) ◽  
pp. 1256-1272 ◽  
Author(s):  
E.V. Deev ◽  
I.D. Zolnikov ◽  
E.Yu. Lobova
Keyword(s):  
Late Pleistocene ◽  
River Valley ◽  
Gorny Altai

Late Pleistocene and Holocene palaeoflood events recorded by slackwater deposits in the upper Hanjiang River valley, China

2015 ◽  
Vol 529 ◽  
pp. 499-510 ◽  
Author(s):  
Tao Liu ◽  
Chun Chang Huang ◽  
Jiangli Pang ◽  
Xiaochun Zha ◽  
Yali Zhou ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
River Valley ◽  
Hanjiang River

Late Pleistocene Palaeohydrology of the Moksha River (the Volga Basin)

2020 ◽  
Author(s):  
Ekaterina Matlakhova ◽  
Andrei Panin ◽  
Vadim Ukraintsev
Keyword(s):  
Late Pleistocene ◽  
River Runoff ◽  
Late Glacial ◽  
River Valley ◽  
East European Plain ◽  
Russian Science ◽  
East European ◽  
Meandering Channel ◽  
High Flood ◽  
High Runoff

<p>The Moksha River valley was studied in its lower part between the Tsna River confluence and the mouth of the Moksha River. Wide floodplain and two levels of terraces are presented on the studied part of the valley. The height of the floodplain is from 1 to 6 m, of the first terrace – about 9-11 m, of the second terrace – 18-22 m. The width of the valley in this area is about 14-16 km, but sometimes it can reach 20-22 km and more. The width of the floodplain is about 12-14 km.</p><p>The Moksha River is a meandering channel. Large and small (modern-size) meandering palaeochannels spread widely on the floodplain surface. These palaeochannels were the main objects of our study. Small palaeochannels have the same parameters as the modern river channel: their width is about 100-150 m, wavelength is between 300-400 and 600-700 m. For the large palaeochannels (macromeanders) the mean parameters are the following: width is about 250-300 m, wavelength is about 1500-2000 m. These large palaeochannels are the signs of high flood activity epoch(s).</p><p>In our study we used a number of field and laboratory methods. Twelve boreholes in large and small palaeochannels were made during fieldwork in August-September 2019. Organic material from studied palaeochennels was sampled to make radiocarbon (AMS) dating to find the time of palaeochannels’ formation and infilling. Also we made the reconstructions of paleo-discharges of the Moksha River based on paleochannels’ parameters.</p><p>We studied both large and small palaeochannels to reconstruct palaeohydrology and history of the Moksha River valley development in Late Pleistocene. Large palaeochannels correspond to the time of high river runoff. The oldest ones of small palaeochannels were studied to know the time of lowering of the river runoff. Presumably, large palaeochannels were formed at the end of Late Glacial (after LGM) when river runoff was much higher than the modern one. This period of extremely high runoff was previously distinguished in many river valleys of East European Plain, where formation of large paleochannels is usually associated with Late Glacial (the end of MIS 2). Lowering of runoff on the central part of the East European Plain is usually associated with the beginning of the Holocene.</p><p>This study is supported by Russian Science Foundation (Project № 19-17-00215).</p>

Late Pleistocene stratigraphy and chronology of lower Chehalis River valley, southwestern British Columbia: evidence for a restricted Coquitlam Stade

2004 ◽  
Vol 41 (7) ◽  
pp. 881-895 ◽  
Author(s):  
Brent C Ward ◽  
Bruce Thomson
Keyword(s):  
British Columbia ◽  
Late Pleistocene ◽  
River Valley ◽  
Glacial Lakes ◽  
Coast Mountains ◽  
Source Areas ◽  
Definitive Evidence

Sediments in lower Chehalis valley span middle Wisconsin (Olympia nonglacial interval) to Holocene time. Sediments are divided into six units with chronological control provided by 14 new radiocarbon ages. Fluvial gravel spans the transition from the late Olympia nonglacial interval to the early Fraser Glaciation. Glaciolacustrine sedimentation represents the first definitive glacial activity in the valley and indicates that Vashon ice in the Fraser Lowland blocked the mouth of the Chehalis valley at ca. 18–17 ka BP. Ice then flowed down the Chehalis valley. The Chehalis valley deglaciated while ice persisted in the Fraser Lowland, forming another lake. After this lake drained, terraces and fans formed. This style of glaciation–deglaciation is typical of many watersheds peripheral to the Fraser Lowland in that local valley ice was slightly out of phase with ice in the lowland. This resulted in glacial lakes forming during both advance and retreat phases. However, in contrast to watersheds in the northwestern Fraser Lowland, no definitive evidence of a Coquitlam ice advance was found within the Chehalis valley. Although glaciers in the area were likely active and advancing, data from the Chehalis valley indicates that they were not as extensive as previously thought. Since ice source areas in the northeastern Fraser Lowland are in the leeward area of the Coast Mountains, it is suggested that lower precipitation resulted in limited glacier activity there during the Coquitlam Stade.

Late Pleistocene and Holocene extreme hydrological event records from slackwater flood deposits of the Ankang east reach in the upper Hanjiang River valley, China

Boreas ◽  
2016 ◽  
Vol 45 (4) ◽  
pp. 673-687 ◽  
Author(s):  
Liang Zhou ◽  
Chun Chang Huang ◽  
Yali Zhou ◽  
Jiangli Pang ◽  
Xiaochun Zha ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
River Valley ◽  
Hanjiang River ◽  
Flood Deposits ◽  
Extreme Hydrological Event
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