In Russia, a lake went underground along with the fish (video). Near Vladimir, a forest lake sank underground along with fish. Which lake sank underground
In place of the reservoir, only a funnel with a muddy bottom remained.
Experts believe that the water went underground due to voids caused by soil erosion.
We are talking about karst formation, when rocks containing silt pass through aquifers, and then they are washed away, and voids are formed. This sometimes causes such failures, reports the 360 TV channel.
The lake was located near the famous Pivovarovsky failure, which was formed in 1959 and was a hole the size of a nine-story building. Now it is overgrown with trees.
However, environmentalists did not see anything surprising in the failure. Due to the geological features of these places, such failures often occur in the Vyaznikovsky, Murom and Gorokhovetsky regions.
Perhaps the lake will recover, but it is still impossible to say for sure what will happen to the reservoir next.
In the Sobinsky district, a lake also went underground for 15 years. It stood without water for five years, and then filled up again. The same story happened in Gus-Khrustalny. No one can explain these processes. Moreover, he does not undertake to investigate: drilling can only aggravate the situation. Such failures can appear anywhere.
The Sakantsy forest lake, more than 20 m deep, completely went underground in the Vyaznikovsky district of the Vladimir region.
The head of the department of water resources and water use of the regional administration, Ivan Shaposhnikov, told reporters about the unique natural phenomenon.
He explained that this happened due to karst formation processes taking place in the area.
“As a result of the erosion of the soil, voids were formed into which water went along with the fish. It is still impossible to say what will happen to the lake next.
There is a possibility that the site of the failure will be flooded and the lake will be restored again. Currently, there is only a funnel in place of the lake,” the specialist said.
Shaposhnikov clarified that the lake was located not far from the Pivovarovsky failure, a similar karst sinkhole that formed in 1959.
A sinkhole is a sinkhole of natural origin. A sinkhole occurs when groundwater erodes soil and rocks, causing the ground to fall into the resulting void.
In the Vyaznikovsky district, the forest karst lake Sakantsy near the village of Pivovarovo went underground. A video of a disappeared reservoir, with only silt remaining at the bottom, was published by community "Vyaznikovsky offroad"
“On October 12, 2017, at 1:30 p.m., a failure occurred in the village of Pivovarovo on Lake Sakantsy. All the water went away with the fish." - this caption accompanies the video.
According to the Internet portal telling about the life of the two cities of Vyazniki and Gorokhovets, Yaropolch.ru, the karst lake Sakantsy was located approximately 40 meters from the famous Pivovarovsky failure, formed in 1959. The Pivovarovsky failure itself, according to the testimony of old-timers, is a pit in the middle of the forest, into which a nine-story house could fit. Now the slopes of the failure are overgrown with trees
As Alexey Migachev, director of the department of environmental management and environmental protection of the administration of the Vladimir region, explained to Zebra TV, it is not surprising that karst sinkholes form in the Vladimir region, especially in the Vyaznikovsky, Gorokhovetsky and Muromsky districts. This is due to the specifics of geological processes in these territories.
“Karst formation is underway. That is, aquifers pass through some rocks containing silt, they are eroded, dissolved and voids are formed. In some places, strata form close to the surface and similar sinkholes are formed. These processes have been going on for decades, with no sudden collapses occurring. And in this place, a void has already formed under this lake, there is about two meters of silt that held water. But, apparently, after the rains these processes became more active, and the silt in some place simply subsided, and the water flowed away like into a funnel.
What will happen to this next - different points of view are expressed. There were cases when these lakes appeared again. The point is that the sinkhole can become silted, and then again it can become a place where water accumulates. But the lake may not recover.
In the Sobinsky district, a lake also went underground about 15 years ago. It stood without water for 5 years, and then filled with water. There was such a story in Gus-Khrustalny. Nobody knows why this happens. Because if you start research, start drilling the surface, the situation may get worse.
Such failures can form anywhere throughout the entire territory, especially in the Vyaznikovsky, Gorokhovetsky and Muromsky districts. There is active formation of karsts there,” - Alexey Migachev explained to Zebra TV.
By the way, it was the karst terrain, prone to failures, that was the most powerful argument against the construction of a nuclear power plant near Murom in the Navashinsky district of the Nizhny Novgorod region. However, this did not prevent the authorities from approving this particular site for the construction of a nuclear power plant.
“According to geologists, karst lakes go underground due to the dissolution of rocks by underground and surface waters. In the case of Lake Sakantsy, the water was retained thanks to the muddy bottom, which played the role of a plug between the lake and the underground river flowing at a depth of 80 m.
In addition to Vyaznikovsky, karst processes cover Kameshkovsky, Kovrovsky, Gorokhovetsky, Muromsky, Selivanovsky, Sudogodsky, Melenkovsky and Gus-Khrustalny districts,” - explained later