RT info:eu-repo/semantics/article
T1 Enviromagnetic study of Late Quaternary environmental evolution in Lower Volga loess sequences, Russia
A1 Költringer, Chiara
A1 Stevens, Thomas
A1 Bradák, Balázs
A1 Almqvist, Bjarne
A1 Kurbanov, Redzhep
A1 Snowball, Ian
A1 Yarovaya, Sofya
K1 Lower Volga loess
K1 Caspian Sea
K1 Environmental magnetism
K1 Magnetic proxies
K1 Atelian regression
K1 Last glaciation
K1 Magnetismo
K1 Magnetism
K1 Geología
K1 Geology
K1 Ciencias medioambientales
K1 Environmental sciences
AB The late Quaternary development of the Lower Volga region of Russia is characterized by an alternating influence of marineand continental environments resulting from fluctuations in Caspian Sea level during the last glaciation. However, sedimentsdeposited under continental conditions have received very little research attention compared to the under- and overlyingmarine deposits, such that even their origin is still in debate. Detailed magnetic mineralogical analyses presented hereshow clear similarities to loess. The results suggest that climate during the time of loess deposition, the Atelian regression(27–80 ka, MIS 4–3), was dry and cool, similar to the modern-day Northern Caspian lowland. The magnetic propertiesrecorded in the loess-paleosol sequences of the Lower Volga also point to short episodes of potentially more humid andwarmer climate during the late Atelian. The new findings in regard to the local Caspian climate and environmental evolutionsupport decreased river discharge from the Russian Plain and Siberian Plain as the dominant factor causing the low Caspiansea level stand during the Atelian, although local-regional climate changes might have had an additional influence.
PB Cambridge University Press
SN 0033-5894
YR 2021
FD 2021-09
LK http://hdl.handle.net/10259/6099
UL http://hdl.handle.net/10259/6099
LA eng
NO The SwedishResearch Council is gratefully acknowledged for funding to ThomasStevens for part of this project (2017-03888). The work of RedzhepKurbanov was supported by the Russian Science Foundation (grant19-77-10077). Sofya Yarovaya was supported by the Russian Foundationfor Basic Research (grant 18-00-00470). Balázs Bradákacknowledges the financial support of project BU235P18 (Juntade Castilla y Leon, Spain) and the European Regional DevelopmentFund.
DS Repositorio Institucional de la Universidad de Burgos
RD 23-nov-2024