Savonoski Crater: What did this 500 meters of 500m in diameter in Alaska do?

In a highly isolated area in Southwest Alaska, near Kodiak Island, and a large in a depth of 110 meters. Known as Savonoski Crater. The name was given in honor of a nearby river and an abandoned indigenous village after the explosion of a volcano.

Crater is not geologically old. The reports show that he graduated in the early 20th century, and although well known, that his full origin has not yet been determined by geologists. Some betray the collapse of a magma room or the melting of permafrost, while others attribute the origin of the geological formation to a meteorite effect before the end of the last glacier in the region.

However, the absence of clear marks such as displaced rock layers or open impact signs makes it difficult to determine the exact origin of depression. This makes the formation of the crater easily into the known geological models. The difficulty in explaining this is related to both the complexity of natural processes and the limitations of access to the region.

Hypothesis of the effect of a meteor

When seen from the air, the circular and deep form of the Savonoski crater is similar to a collision structure. However, despite their obscene appearance, geologists have never found concrete evidence that a space rock had hit the world in that place. In addition, the lack of meteoric materials or shock signs in the region weakens a cosmic theory of effect.

Comprehensive research in the 1960s and 1970s could not define the rock and land fragments thrown from the crater during an influence. If any, a study in June 1972 says, It may have been removed by glacier over time.

“The metamorphic effect of different shock was not observed in a few examples of the collected Kaya,” the study was published in Meteorírics magazine. This result has created serious doubts about the hypothesis of the effect, and suggested that the Savonoski crater may have been created by other geological processes that have not yet been fully understood.

A volcanic boom theory

Another hypothesis analyzed was that the Savonoski crater would be a volcanic salary, and that it was a name given to a depression when the magma rising from the depths of the world crust reached a water tray. Underground lava boils water and the resulting steam accumulates so many underground pressure that it can trigger an explosion.

Volcanic Maars usually leave large craters full of groundwater, as in the crater. US geology service refers to an example Ukinrek Maars, 100 m CRATER graduated from Alaska during a 10 -day explosion in 1977.

Although Savonoski’s crater is just 30 km away from the volcanic complex, there is no relief forms that directly open two points. Research in the 1960s and 1970s did not define any type of volcanic activity from a magma source under the hole or on the ground.

Why does Savonoski crater continue to be a geological puzzle?

Although scientists have been aware of the Savonoski crater for decades, there was a deduction in the research in the 1960s and 1970s after an intense research period, and technical or logistics difficulties in this research gap may have been weighed.

In 1978, the latest discussion on the subject, which was an article published by Alaska University in Fairbanks, investigated several theories. The so -called “Savonoski Problem” study does not realize that the crater is created by an extraterrestrial effect or underground volcanic activity.

However, the biggest obstacle to solving mystery, geologists say, Glake that occurred 23 thousand 14.7 thousand years agoHe deleted all kinds of geological proofs that could exist. Scientists think that although the meteoric effect and the hypotheses of the volcanic explosion remain valid, the possibility of an unknown process is still under the crater.

If you like geological mystery, let’s take the opportunity to know the possible reasons for Africa’s division into two parts because of a giant slit that slowly destroys some areas of the world surface in the region. Next time.