New Diatom and Sedimentary Data Confirm the Existence of the Northern Paleo-Outlet from Lake Ladoga to the Baltic Sea
Bibliographic Data
| ID | 15801901 |
|---|---|
| Authors | Anna Ludikova (0000-0001-6022-2455, Archive of the Russian Academy of Sciences, corresponding author), Dmitry Subetto (0000-0002-3585-8598, Herzen University), Д Д Кузнецов (0000-0001-5588-3689, Archive of the Russian Academy of Sciences), А В Орлов (Herzen University), Angelina Shatalova (Herzen University) |
| Year | 2024 |
| Volume | 7 |
| Issue | 3 |
| Pages | 31-31 |
| Publication date | 2024-07-19 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Quaternary (JOURNAL) |
| Journal identifiers | ISSN: 2571-550X • E-ISSN: 2571-550X |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/quat7030031 |
| OpenAlex | W4400807327 |
| Language | EN |
| References cited | 11 |
Despite more than 100 years of research, a number of questions concerning the evolution of the post-glacial connection between Lake Ladoga, the largest European lake, and the Baltic Sea remain unanswered. In particular, the location and chronological frames of the paleo-outlet from Lake Ladoga in the Holocene remain debatable. Paleolimnological studies were performed in small lakes in the northern part of the Karelian Isthmus (NW Russia), where the outlet from Lake Ladoga, the Heinjoki Strait, is thought to have existed until the lake drained to the south due to the tilting of its basin. The presence of the indicative “Ladoga species” (e.g., Aulacoseira islandica, Achnanthes joursacense, Cymbella sinuata, Ellerbeckia arenaria, Navicula aboensis, N. jaernefeltii, N. jentzschii, etc.) in the diatom assemblages is used as evidence for the influence of Lake Ladoga during the accumulation of coarse-grained sediments at the bottom of the ancient channel. It also confirms the functioning of the hypothetical northern local branch of the strait. Decreased abundances of the “Ladoga species” and the onset of the accumulation of fine-grained sediments suggest that the water discharge via this paleo-outlet rapidly reduced starting from ca. 4100 cal BP. The termination of the functioning of the Heinjoki Strait is recorded as an abrupt disappearance of the indicative taxa from the diatom record. This was dated to ca. 3500–3200 cal BP, which corresponds to the estimated ages of the birth of the River Neva, the present outlet from Lake Ladoga
Diatom · Geography · Glacial period · Holocene · Paleolimnology · Physical geography · Geology and Paleoclimatology Research · Isotope Analysis in Ecology · Marine and environmental studies · Geology · Oceanography · Paleontology
When the River Began—The Formation of River Motala Ström and Human Presence in the Early Holocene, Sweden
Late Holocene land uplift/neotectonics on the island of Valamo (Valaam), Lake Ladoga, NW Russia
Human-environment interaction during the Holocene along the shoreline of the Ancient Lake Ladoga
Bayesian Analysis of Radiocarbon Dates
The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)
Holocene oscillations of the Baltic Sea and Lake Ladoga levels and early human movements
| Citation velocity | historical |
|---|---|
| Highly cited | No |