Meteorite

A meteorite. (from the Greek meteorites – meteorite).
Arizona
He formed more than a thousand years ago the most famous meteorite crater in the Arizona Desert, which is the largest in the world. The average diameter of the crater is 1207 m and the depth is 174 m, while its average shaft height is 37 m. Inside the crater there is an accumulation of sandstone with an admixture of iron and nickel, which is pulverized. Perhaps the main part of the meteorite is located at a depth of four hundred meters.
Goba
In 1920, the largest of all meteorites was discovered in South-West Africa. It is a meteorite made of iron, which has a mass of 70 tons and is located in a funnel formed by it. Nothing is known about the exact date of his fall.
Sikhote-Alinsky
An iron meteorite that fell in the Far East on February 12, 1947 in the Sikhote-Alin range and was named after him was discovered and investigated. During braking in the atmosphere, the meteorite exploded and shattered into fragments, which fell on an area of 35 square kilometers. In total, the mass of the meteorite is 60 tons, but at the moment only 28 tons of its fragments have been collected. During the entire time of meteorite research, small impurities of gold and platinum were discovered for the first time.
Tunguska
The body that exploded on June 30, 1908 in the Earth’s atmosphere over the East Siberian taiga was named the Tunguska meteorite. Due to this explosion, the taiga ignited within a radius of 30 kilometers from its epicenter. A shock wave passed around the globe twice. The fire in the taiga lasted for more than two years. All seismic stations in the world have noted the earthquake that caused the explosion. Despite this, there is currently no reliable description of the mechanism of the event and no body substance has been found. To explain this phenomenon, it can be hypothesized that as a result of strong heating during braking in the Earth’s atmosphere, a small icy comet core appeared over Siberia at that time.