RECONSTRUCTION OF PALEOECOLOGICAL CONDITIONS OF SMALL LAKES OF THE KARELIAN ISTHMUS IN CONNECTION WITH CHANGES IN THE LEVEL OF THE BALTIC PALEOBASINS (ACCORDING TO DIATOM ANALYSIS)

2021 ◽  
pp. 18-30
Author(s):  
Angelina Shatalova ◽  
◽  
Anna Ludikova ◽  
Dmitry Subetto ◽  
Uriy Kublitskij ◽  
...  
Keyword(s):  
Karelian Isthmus ◽  
Small Lakes ◽  
Diatom Analysis ◽  
The Baltic

Paleoecological study of bottom sediments of the lake Goluboye (Karelian Isthmus) according to the results of diatom analysis

2019 ◽  
pp. 265-269
Author(s):  
Angelina E. Shatalova ◽  
Uriy A. Kublitsky ◽  
Dmitry A. Subetto ◽  
Anna V. Ludikova ◽  
Alar Rosentau ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Bottom Sediments ◽  
Modern Science ◽  
Karelian Isthmus ◽  
The Baltic Sea ◽  
Diatom Analysis ◽  
North West ◽  
The North ◽  
Important Direction ◽  
The Baltic

The study of paleogeography of lakes is an actual and important direction in modern science. As part of the study of lakes in the North-West of the Karelian Isthmus, this analysis will establish the dynamics of salinity of objects, which will allow to reconstruct changes in the level of the Baltic Sea in the Holocene.

Associations of Sphagnum rubellum Wils. on the bogs of the south-east part of Baltic region

2003 ◽  
pp. 50-61 ◽  
Author(s):  
V. A. Smagin ◽  
M. G. Napreenko
Keyword(s):  
Baltic Sea ◽  
Plant Cover ◽  
Karelian Isthmus ◽  
Baltic Region ◽  
The South ◽  
The Baltic Sea ◽  
Kaliningrad Region ◽  
The Baltic ◽  
Typical Habitat ◽  
New Syntaxa

The paper characterizes the 3 associations comprising plant communities with Sphagnum rubellum in the south-eastern part of the Baltic region. The new syntaxa differ from each other both in their floristic characters and the pronounced affinity to definite regional mire types and particular habitats. The ass. Drosero-Sphagnetum rubelli is typical of the relatively most thorough ranges. It is observed from the Kaliningrad region to the Karelian Isthmus and, according to the published reference, occurs even throughout the whole area around the Baltic Sea. Its most typical habitat is that of margins of mire lakes and pools. The ass. Eriophoro-Sphagnetum rubelli occurs in central plateaus of convex plateau-like bogs, typical of the areas adjacent to the Baltic Sea coast. It occupies extended flat mire ecotopes with the water level 0.2–0.25 m deep. The ass. Empetro-Sphagnetum rubelli is characteristic of the retrogressive complex in the convex bogs of the East-Baltic Province. It is mostly observed along the coast of the Gulf of Finland. Its stands are rather dynamic and unstable in both space and time. The presence of communities comprised by these 3 associations is an important vegetation character of the series of regional mire types. Assuming an association level of the respective syntaxa seems rational for the purposes of adequate reflection of plant cover diversity.

Palaeoenvironment of the Karelian Isthmus, the easternmost part of the Gulf of Finland, during the Litorina Sea stage of the Baltic Sea history

Boreas ◽  
2007 ◽  
Vol 36 (4) ◽  
pp. 441-458 ◽  
Author(s):  
Arto Miettinen ◽  
Larissa Savelieva ◽  
Dmitry A. Subetto ◽  
Rimma Dzhinoridze ◽  
Khikmat Arslanov ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Gulf Of Finland ◽  
Karelian Isthmus ◽  
The Baltic Sea ◽  
The Baltic ◽  
The Gulf Of Finland ◽  
Litorina Sea

Diatom complexes from bottom sediments of small lakes of the Imandra depression

2019 ◽  
pp. 220-224
Author(s):  
Anna L. Kosova ◽  
Dmitrii B. Denisov ◽  
Svetlana B. Nikolaeva
Keyword(s):  
Bottom Sediments ◽  
Sharp Increase ◽  
Tectonic Activity ◽  
Western Coast ◽  
Small Lakes ◽  
Diatom Analysis ◽  
Diatom Flora ◽  
Murmansk Region ◽  
Diatom Complexes ◽  
Imandra Lake

The study of diatom complexes in the bottom sediments of 2 small nameless lakes on the western coast of Imandra Lake (Murmansk region) was carried out. The features of the historical dynamics of diatom flora in response to changes in the environment and climate in the Holocene are described. Diatom analysis revealed the effects of tectonic activity in the area of the Imandra Lake depression, accompanied by a sharp increase in the water level, which is confirmed by lithological data.

scholarly journals GROUNDWATER EXCHANGE IN THE BALTIC SHIELD MARGINAL AREAS AND ADJACENT ARTESIAN BASINS BASED ON ISOTOPE AND HYDROCHEMISTRY DATA. SCIENTIFIC PROBLEMS AND PRACTICAL APPLICATIONS. KARELIAN ISTHMUS

2016 ◽  
pp. 46
Author(s):  
Григорий Юрьевич Воронюк ◽  
Галина Сергеевна Бородулина ◽  
Ирина Александровна Крайнюкова ◽  
Игорь Владимирович Токарев ◽  
Grigory Voroniuk ◽  
...  
Keyword(s):  
Baltic Shield ◽  
Karelian Isthmus ◽  
Practical Applications ◽  
Marginal Areas ◽  
Groundwater Exchange ◽  
The Baltic

scholarly journals Brown bullhead Ameiurus nebulosus — new fish species for Russia

2020 ◽  
Vol 65 (3) ◽  
Author(s):  
Igor Popov ◽  
Anna Kotova
Keyword(s):  
Baltic Sea ◽  
Lake Ladoga ◽  
Karelian Isthmus ◽  
The Baltic Sea ◽  
Brown Bullhead ◽  
Natural Processes ◽  
Ameiurus Nebulosus ◽  
The Baltic ◽  
Baltic Sea Basin ◽  
The City

The native habitat of the brown bullhead Ameiurus nebulosus is located in the eastern part of North America. This species was introduced in Europe, Southwestern Asia and New Zealand. It was supposed that it entered Russia from the southwest and now inhabits some water bodies at the border with Ukraine and Belarus. Information about bullheads in Russia was searched for in scientific editions and angler’s blogs. Anglers’ reports have been verified by survey and fishing. It turned out that brown bullheads did in fact appear in Russia, but not where they were expected: they were found by the city of Saint Petersburg on the Karelian Isthmus, i.e., on the territory between Lake Ladoga and the Gulf of Finland of the Baltic Sea. They inhabit at least three lakes. This invasion resulted from release by unauthorized individuals. The revealed habitats are linked by brooks with the river systems of the Baltic Sea Basin. The following spread of the brown bullhead is possible due to intentional releases and natural processes.

scholarly journals Postglacial seismogenic deformations of an esker in the Northern Karelian Isthmus (south-east Fennoscandia)

2019 ◽  
pp. 19-35
Author(s):  
S. V. Shvarev
Keyword(s):  
Sedimentary Cover ◽  
Research Area ◽  
Crystalline Basement ◽  
Lake Ladoga ◽  
Strongly Correlated ◽  
Karelian Isthmus ◽  
Tectonic Structure ◽  
Stratigraphic Position ◽  
Structural Plan ◽  
The Baltic

The research area is located in the Northern part of the Karelian Isthmus between Lake Ladoga and the Gulf of Finland of the Baltic Sea. The terrain features are closely related to the tectonic structure of the crystalline basement, partially covered with thin deposition layer of the Last Glaciation and Holocene mostly. Accumulative forms are rarely but strongly correlated with the tectonic structure also. Most expressive features of accumulative topography are esker ridges that stretch for tens of kilometers. Analysis of eskers spatial distribution shows their close connection with the structural plan of the crystalline basement. One of the ridges under study was described in three sections where a lot of deformations in soft sediments, accompanied by deformations of the esker’s topography (in one case) were found. The nature and stratigraphic position of deformations indicates their appearance during the period of existence of the Baltic Ice Lake after the retreat of the ice sheet. Post-sedimentary deformations were accompanied by partial re-deposition of sedimentary strata. Deformations are represented by several types and generations. The ensembles of faults and fold deformations in the esker deposition kinematically connected with each other and coinciding along the strike with the structural lineaments demonstrate the influence of the activated tectonic structure to the formation of the sedimentary cover. The conjugation of normal and thrust faults, the presence of several “event horizons” with traces of liquefaction testify to the seismotectonic genesis of deformations and several strong earthquakes that occurred at different stages of the existence of the Baltic Ice Lake in the period 13.0–11.6 thousand years BP.

Sign in / Sign up

Export Citation Format

Share Document