RT info:eu-repo/semantics/article
T1 Palaeoenvironmental implications from Lower Volga loess - Joint magnetic fabric and multi-proxy analyses
A1 Költringer, Chiara
A1 Bradák, Balázs
A1 Stevens, Thomas
A1 Almqvist, Bjarne
A1 Banak, Adriano
A1 Lindner, Martin
A1 Kurbanov, Redzhep
A1 Snowball, Ian
K1 Anisotropy of magnetic susceptibility
K1 Scanning electron microscopy
K1 Loess
K1 Northern Caspian Sea region
K1 Palaeowinds
K1 Post-depositional reworking
K1 Chemical alteration
K1 Palaeoclimate reconstruction
K1 Magnetismo
K1 Magnetism
K1 Ciencias medioambientales
K1 Environmental sciences
K1 Geología
K1 Geology
AB Magnetic fabric (MF) investigations complemented by geochemical and grain surface analyses of theunderstudied and controversial marine isotope stage (MIS) 5 b, 4 and 3 loess deposits in the Lower Volgaregion, Russia show that the material has been transported and deposited by wind and to a large extentexperienced post-depositional reworking. Grain surface features suggest that the material was glaciallyground and fluvially transported prior to final aeolian deposition as loess. Secondary magnetic fabrics inthe loess reveal pedogenic and cryogenic processes and a generally cold environment with brief shifts towarmer climate during late MIS 5 and MIS 3. Palaeowind reconstructions derived from preserved primaryaeolian MF, indicate locally influenced westerly and north-westerly flow as part of a wider scalewesterly wind pattern, similar to modern day winter conditions. We suggest that the climate of the lastglacial in the Northern Caspian Lowland was cold and dry, with higher windspeeds and less variabilityduring MIS 4 compared to MIS 3.
PB Elsevier
SN 0277-3791
YR 2021
FD 2021-09
LK http://hdl.handle.net/10259/6101
UL http://hdl.handle.net/10259/6101
LA eng
NO Financial support ofproject BU235P18 (Junta de Castilla y León, Spain) and the EuropeanRegional Development Fund (ERD), project PID2019-108753 GB-C21/AECI/10.13039/501100011033 and projectPID2019-105796 GB-100/AECI/10.13039/501100011033 of the Agencia Estatal de Investigación. R. Kurbanov acknowledges theRussian Science Foundation project 19-77-10077. The SwedishResearch Council is gratefully acknowledged for funding to T. Stevensfor part of this project (2017e03888).
DS Repositorio Institucional de la Universidad de Burgos
RD 23-nov-2024