scholarly journals Late Pleistocene and Holocene environmental evolution of the Wkra River Valley near Bielawy Gołuskie (central Poland) recorded in palaeo-oxbow lake deposits

2017 ◽  
Author(s):  
Monika NISKA ◽  
Jerzy JONCZAK ◽  
Joanna GADZISZEWSKA
Keyword(s):  
Late Pleistocene ◽  
River Valley ◽  
Oxbow Lake ◽  
Environmental Evolution ◽  
Central Poland ◽  
Lake Deposits

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

scholarly journals Optical dating and sedimentary record from the terrace depositional profile of the Warta River (Central Poland)

2014 ◽  
Vol 41 (4) ◽  
pp. 361-368 ◽  
Author(s):  
Danuta Dzieduszyńska ◽  
Joanna Petera-Zganiacz ◽  
Juliusz Twardy ◽  
Piotr Kittel ◽  
Piotr Moska ◽  
...  
Keyword(s):  
Environmental Changes ◽  
Late Glacial ◽  
River Valley ◽  
Osl Dating ◽  
Flood Events ◽  
Alluvial Terrace ◽  
Sedimentary Record ◽  
Optical Dating ◽  
Central Poland ◽  
Stable Conditions

AbstractResults of OSL dating and sedimentary studies from the profile of the low alluvial terrace of the middle Warta River are presented. The samples were dated using the single-aliquot regenera-tive method. Dating was used to establish a timing of the Weichselian Late Glacial events in the river valley environment. Stable conditions on the floodplain are expressed by the deposition of organic-rich series radiocarbon dated at 12 900-12 600 cal BP and 11 600-10 770 cal BP. Samples for OSL dating were collected from the mineral material deposited during the intensification of flood events during the Weichselian decline. The results obtained for the alluvia range from 12.78 ± 0.62 ka b2k to 14.33 ± 0.74 ka b2k. Sedimentological criteria allowed to distinguish between particular flood events. Overestimation of OSL ages is probably a result of rapidity of environmental changes in that time.

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

scholarly journals Timescale for Climatic Events of Subboreal/Subatlantic Transition Recorded at the Valakupiai Site, Lithuania

Radiocarbon ◽  
2007 ◽  
Vol 49 (2) ◽  
pp. 889-897 ◽  
Author(s):  
Jacek Pawlyta ◽  
Algirdas Gaigalas ◽  
Adam Michczyński ◽  
Anna Pazdur ◽  
Aleksander Sanko
Keyword(s):  
Human Activity ◽  
Black Sea ◽  
Radiocarbon Dating ◽  
Basal Part ◽  
Oxbow Lake ◽  
The Black Sea ◽  
Mollusk Fauna ◽  
The Baltic ◽  
Lake Deposits

Oxbow lake deposits of the Neris River at the Valakupiai site in Vilnius (Lithuania) have been studied by different methods including radiocarbon dating. A timescale was attained for the development of the oxbow lake and climatic events recorded in the sediments. 14C dates obtained for 24 samples cover the range 990–6500 BP (AD 580 to 5600 BC). Medieval human activity was found in the upper part of the sediments. Mollusk fauna found in the basal part of the terrace indicate contact between people living in the Baltic and the Black Sea basins. Mean rates were calculated for erosion of the river and for accumulation during the formation of the first terrace.

scholarly journals A Gas-Emission Crater in the Erkuta River Valley, Yamal Peninsula: Characteristics and Potential Formation Model

Geosciences ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 170 ◽  
Author(s):  
Evgeny Chuvilin ◽  
Julia Stanilovskaya ◽  
Aleksey Titovsky ◽  
Anton Sinitsky ◽  
Natalia Sokolova ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
River Valley ◽  
Oxbow Lake ◽  
Yamal Peninsula ◽  
Permafrost Soil ◽  
Formation Model ◽  
Gas Emission ◽  
Ground Ice ◽  
Lake Formation ◽  
Potential Formation

Methane is a powerful greenhouse gas, and the abrupt degassing events that recently have formed large craters on the Russian Arctic Yamal and Gydan Peninsulas have caused major concern. Here we present field data on cover sediments and evolution of a gas-emission crater discovered in the Erkuta–Yakha River valley in the southern Yamal Peninsula in June 2017. The crater is located south of other similar craters discovered over the past decade in northern West Siberia. Data were collected during a field trip to the Erkuta crater in December 2017 which included field observations and sampling of permafrost soil and ground ice from the rim of the crater. All soil and ice samples were measured for contents of methane and its homologs (ethane and propane) and carbon dioxide. The contents of carbon dioxide in some samples are notably higher than methane. The strongly negative δ13С of methane from ground ice samples (−72‰) is typical of biogenic hydrocarbons. The ratio of methane to the total amount of its homologs indicate a component of gases that have migrated from a deeper, thermogenic source. Based on obtained results, a potential formation model for Erkuta gas-emission crater is proposed, which considers the combined effect of deep-seated (deep gas migration) and shallow (oxbow lake evolution and closed talik freezing) causes. This model includes several stages from geological prerequisites to the lake formation.

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