Baltic glacial lake – The Yoldian Sea – Litorin Sea
Meanwhile: «on the border of the Allered and the Upper Dryas, the Baltic glacial lake itself is formed. In the beginning, it had a limited connection with the ocean, but after a catastrophic descent north of Mount Billingen, the reservoir level dropped by 25—30 meters and ocean waters penetrated the Baltic.
This event occurred after the formation of the second ridge of Salpausselkä, according to varvametric and radiocarbon data, it dates back to 8.3 thousand BC.
The invasion of the ocean led to the creation of a brackish basin, known as the Yoldian Sea. It occupied only the central part of the Baltic Basin, southwestern and southern regions were in subaerial conditions. (At the same time, water slept in the reservoirs between the Baltic and the White Sea, connecting these seas). Low sea levels persisted until the litorin transgression in 5.2—4.7 thousand BC, when the warm Litorin Sea arose».
The findings of the researchers, according to which a glacier similar to the Pechora and Barents Sea could not melt, appear to be extremely interesting.
Having reached the maximum, the glacier in the modern climate would have been melting for at least 50 thousand years (that is, we would still have the opportunity to observe ice sheets throughout the north). At temperatures 2° C higher than modern ones (i.e., the Holocene optimum), it would melt for 10 thousand years, while such temperatures should have persisted above the glacier itself during the ice age. With the actual temperature increase at the end of the Ice Age by 5—6° C from the Valdai maximum, the glacier would remain stable, since a further increase in temperatures would not allow the presence of a thick ice sheet, and melting would compensate for the mass gain due to increased precipitation. Thus, the Pechora and Barents Sea glaciers could not melt by themselves.
The only possibility of melting was that the system had to be brought out of stability by an external influence, moreover, long enough (which is not observed), or powerful enough (which is observed both according to sources and according to paleogeography data). We should be glad that the asteroid (satellite) fell so successfully that it destroyed the glacier, because if it got into a plastic ice mass capable of absorbing the energy of an impact, but into the ocean or on land, the consequences for humanity could be extremely unfavorable. After all, a piece of a comet with a diameter of 5 km. was able to cause a catastrophe even on Jupiter (the impact power reached 1 trillion Hiroshim), what can we say about the Earth.
The ice sheet in the Northern Hemisphere has melted very quickly, according to information obtained from drilling ice in Greenland, for a period of less than a year, maybe for months or days. Sure, water flows resulting from this flood, rushing south (along the valleys of the Volga, Don, Dnieper, Mississippi) on their way inflicted huge damage on the ecosystem, but, nevertheless, they created a modern world. The starting point of this process is described in the Rig Veda and Mahabharata. And in the reality of these observations there is no doubt.