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- Title
Paleogeography and Natural Environment of the Karelian Shore of the White Sea in the Holocene, as Shown by the Study of Lake Sediments from the Keret' River Mouth.
- Authors
Shelekhova, T. S.; Lavrova, N. B.; Tikhonova, Yu. S.; Tolstobrov, D. S.; Vashkov, A. A.
- Abstract
The results of the comprehensive study (diatom and pollen and spore analysis, and 14С-dating) of Holocene bottom sediments from a lake on the shore of Kandalaksha Bay, White Sea, at the Keret' River mouth, are reported. Three stages in the evolution of the lake basin: marine, transitional, and lacustrine, were recognized. Diatom complexes, typical of each facies, were described. Pollen, spores and non-pollen palynomorphs were shown to indicate marine, transitional, and freshwater sedimentation conditions. Sea level was found to decrease 7200 cal. y.a. A marine sedimentation environment was succeeded by a lacustrine environment ca.6700 cal. y.a. The position of the sea shoreline in the study area at that time was determined. Data obtained by pollen and spore analysis were used for relative dating of postglacial strata. Vegetation, evolving from the end of the Early Holocene to the present, was reconstructed.
- Subjects
KARELIA (Russia); LAKE sediments; HOLOCENE Epoch; SEASHORE; PALYNOLOGY; WATERSHEDS; PALEOGEOGRAPHY; FOSSIL diatoms
- Publication
Stratigraphy & Geological Correlation, 2023, Vol 31, Issue 4, p339
- ISSN
0869-5938
- Publication type
Article
- DOI
10.1134/S0869593823040056