The Mysterious Patomskiy Crater

Aug 6, 2015 6 comments

In 1949 a geologist named Vadim Kolpakov discovered a large mound of limestone in the north of the Irkutsk region in southeastern Siberia, about 360 km from the district center Bodaibo. The cone is curiously shaped with a crater at the top and a small mound in the center. The mound is about 40 meters high and 100 meters across at the base. The smaller mound at the top is about 12 meters high. The crater was named Patomskiy, after a nearby river, but local residents call it “the Fiery Eagle’s Nest”.

Since the discovery of the crater, there have been many theories as to what could have created it. For a long time it was believed to be a meteorite impact structure. Some linked it to the Tunguska meteorite, whose remains have never been discovered. But the crater does not resemble any other known meteorite site. Later, some geologists suggested that it could be a nascent volcano, but no volcanic material has ever been found either.


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By counting tree rings of trees growing on the crater, Siberian scientists have calculated the age of the crater to be about 250 years. Interestingly, the trees around the crater show evidence of accelerated growth for a period, similar to that seen in the forests around Chernobyl after the nuclear disaster. This has given rise to wild theories of hidden nuclear plant and buried UFO with nuclear fuel on board. So far no object like the fragments of an asteroid or any metal under the crater has been discovered.

More recent work on the crater has thrown up another more likely explanation — a gas volcano. The mound could have formed by the underground release of some fluids such as hydrogen. The release of heat, which accompanied the underground release of the fluid, caused changes in the size of tree rings which was interpreted as abnormal growth.

Alexander Pospeev, a doctor of geological and mineralogical sciences, told Siberian Times, “Even now, the origin of the crater is not discovered, but we can say for sure that it has earthly origin.”


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  1. Enfin on a trouvé le nombril du monde!

  2. damned gophers...

  3. Those darn Hobbits are everywhere

  4. Gophers indeed. It DOES look like a gopher hole. IF it was a gas blowout the stones would be larger and not so shattered. I'm going to say something dug a hole AND IS STILL DOWN THERE. It obviously plugged the hole behind it. Like a gopher.

  5. The material of the cone and its center mound seem to be the same rock rubble. So, based on that the structure looks like it was created by high pressure flow (water, gas, etc.) that carried the rock rubble from below to the surface thereby creating a cone shaped mound, which once the flow ceased the center of the mound would have collapsed due to the loss of the flow pressure that had supported it, thereby resulting in the landform that exists today.

  6. An important question about the crater is whether the rock surrounding the crater is the same rock rubble as forms the crater. Antipin and Fedorov’s 2008 research paper identify the surrounding rock as undisturbed limestone, not clastic/rubble material. That indicates something had to blast or drive a hole into or through the unbroken limestone. Was the “flow” force that created the crater from below (hydrothermal, freeze/thaw) or above (Russian bunker buster missile, meteorite [both produce explosive gases flow]). Antipin and Fedorov’s (2008) determination is that the crater was created by endogenous processes (caused by forces from within the Earth).


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