'Scary eagle nest' mysterious in Siberia

Named by the local residents as the "Scary Eagle Nest", the famous mound in Irkutsk, Siberia remains a major challenge for scientists who want to understand its origin.

Patomskiy - Mysterious limestone raft in Siberia

In 1949, the geologist Vadim Kolpakov discovered a large limestone mound in the Irkutsk region in southeastern Siberia , about 360 km from Bodaibo town. The rocky hill is called Patomskiy after a nearby river.

The ground is mysteriously formed in southeastern Siberia.(Photo: Dmitry Semenov.)

This cone cone quickly intrigued scientists with the top of the mountain mouth and a tissue in the middle. It is about 40 meters high and the bottom is 100 meters wide. Soil tissue is at the top of 12 meters.

After the mound was discovered, scientists came up with many theories about what caused it. For a long time, researchers believe this is a work under the impact of meteorites. Some people associate it with the collision of the Tunguska meteorite . However, the mound does not look like any of the previous meteorite areas.

Geologists have suggested that Patomskiy may be a newly formed volcano , but they cannot find traces of volcanoes here.

Through the tree round calculations of surrounding trees, Siberian scientists have calculated mounds dating to about 250 years. In particular, these trees have shown signs of rapid growth over a period of time, similar to the forest near Chernobyl after the nuclear disaster. This led to the hypothesis of a secret nuclear plant and alien spacecraft carrying nuclear materials. But there are no meteor pieces or metal carcasses detected underneath the mound.

Recent research works provide a more reasonable explanation. Mounds can be the result of gas volcanoes , formed by the release of liquids like hydrogen from underground. The heat associated with the liquid air stream has caused changes in the size of the tree ring.

Alexander Pospeev, a geological mine doctor, said: "So far, the cause of mound formation has yet to be discovered, but we can confirm for sure it originated from Earth."