Title Pleistocene marine deposits in the coastal areas of Kola Peninsula (Russia)
Author Korsakova, O.P.
Author Affil Korsakova, O.P., Russian Academy of Sciences, Geological Institute of Kola Science Center, Apatity, Russian Federation. Other: University of Hong Kong, China; ENEA, Italy; University of Tokyo, Japan
Source Quaternary International, 206(1-2), p.3-15, ; 17th INQUA congress, Cairns, INQUA Commission on Coastal and Marine Processes, and International Geoscience Programme Project 526, Cairns, Queensl., Australia, July 28-Aug. 3, 2007, edited by N.R. Catto, W.W.S. Yim, F. Antonioli and Y. Yokoyama. Publisher: Elsevier, Oxford, United Kingdom. ISSN: 1040-6182
Publication Date Sept. 1, 2009
Notes In English. 34 refs. GeoRef Acc. No: 307812
Index Terms algae; geochronology; glacial geology; ice sheets; marine deposits; Pleistocene; Quaternary deposits; sediments; Arctic region; Russia--Kola Peninsula; Arctic Ocean-- White Sea; arctic environment; Arctic Ocean; assemblages; Barents Sea; biostratigraphy; Cenozoic; chronostratigraphy; coastal environment; Commonwealth of Independent States; diatoms; Europe; Foraminifera; Invertebrata; Kola Peninsula; lithofacies; marine sediments; microfossils; optically stimulated luminescence; paleo-oceanography; paleoenvironment; paleosalinity; paleotemperature; Plantae; Protista; Quaternary; Russian Federation; sea-level changes; transgression; upper Pleistocene; White Sea
Abstract On the basis of field data, datings from both electron spin resonance - and optically stimulated luminescence, and micro- and macrofauna, in addition to presence of diatoms, three Late Pleistocene marine units have been identified in the coastal areas of the Kola Peninsula. The stratigraphically lowest sequence is correlated to the Ponoi Beds and the Boreal transgression, attributed to the marine isotope stages (MIS) 5e to 5d in the White Sea depression and to MIS 5e to 5c in the Barents Sea. Thermophilic fauna and diatoms indicate normal water salinity and a water temperature above zero. The second marine unit, referred as the Strel'na Beds, can be correlated with the Early Weischselian transgression, termed the Belomorian transgression. With low water salinity and a water temperature similar or colder than the present times, Belomorian transgressions are reliably detected in the White Sea and are not clearly found in the Barents Sea. The results obtained from the sediments of the Ponoi and Strel'na Beds indicate a continuously existing marine reservoir from 130 to 80-70 ka ago (entire MIS 5) in the White Sea depression. The early Middle Weichselian Barents-Kara ice-sheet invasion and its recession might have caused the glacioeustatic Middle Weichselian (MIS 3) transgression, and the third Late Pleistocene marine sequence has been deposited in the regressing shallow cold sea with less saline waters. The results help in the understanding of the history of Late Quaternary ice sheets in North Eurasia and provide evidence for the debatable Early and Middle Weichselian marine events.
URL http://hdl.handle.net/10.1016/j.quaint.2008.11.004
Publication Type conference paper or compendium article
Record ID 65004858