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05.03.2012

Meteorite   - A piece of extraterrestrial material that fell to Earth, literally - "stone of heaven."   Meteorites - is one of the oldest minerals (4.5 billion years), so they should be preserved traces of the processes accompanying the formation of planets. While on Earth have not been delivered to the lunar soil samples, meteorites were the only samples of extraterrestrial matter.Geologists, chemists, physicists and metallurgists gather and...

 

  Much less powerful than supernova explosions, but much more frequent and intimate events causing catastrophic changes in the planet's surface and the biosphere, taking place in the fall of large meteorites, and cometary nuclei. Found a frequency of a cosmic bombardment. We studied the distribution of ages of large impact craters on the surface of the planet. For this purpose were taken only craters with a diameter more than 10 kilometers, and age was...

 

The answer to this question have tried to give American and German scientists have modeled seismic waves that will hit the Earth on the celestial body. It also helped to obtain new information on the impact of previous collisions for surface and deep parts of the world 
  Norilsk magma killed all living things 
The great Permian extinction was triggered by a colossal volcanic activity in the area of the East Siberian platform, according to...

 

Meteorites have always evoked awe man ... 

No wonder: the stones that fell from the sky seemed the gifts of the gods. From the meteoric iron weapons and made ritual objects, which enjoyed special reverence. However, meteorites gods not only rewarded people, but also punished by heaping upon them the anger, too, in the form of meteorites. However, many of these accidents man has ever seen - too long ago they occurred, but that's come up with its...

 

  February 12, 1947 in the Primorye Territory in the western spurs of the Sikhote-Alin iron meteorite fell. On the way to the rendezvous with the Earth, he poured out on the hundreds of thousands of fallen debris and rain. In fact, a meteorite - a rarity, an iron meteorite - a rarity twice, and iron rain - a triple. Sikhote-Alin meteorite is among the ten largest meteorites of the world, and a number of features makes this meteorite unique - for example, for a...

 

An unique event occurred in France in October 2011 - on the roof of one of the houses had fallen meteorite. The event occurred in the suburbs of Paris. According to scientists from all 60 known cases of falling space objects on the territory of France - the first that took place so close to the capital. 

A few years ago in the south-eastern France was the largest found "alien visitor" whose...

 

Meteorites are valuable because they can tell us about the planets, of which they were once 

Recently, a team of researchers has officially recognized that "visitors from the sky", which fell in July last year in Morocco, have a Martian origin, and therefore can tell about the atmosphere and climate of the Red Planet, and we are one step closer to unraveling its mysteries. 

Rock samples from Mars come to Earth is rare and so far only in...

 

After 102 years after the fall of the Tunguska taiga famous celestial body scientists have finally managed to identify the crash site of one of its fragments and to study the unusual composition of the substance of the space alien. The study was conducted using a unique instrument - GPR. As a result, it was proved that it was not a meteorite, a comet. 

Mystery of the Tunguska meteorite has long attracted...

 
03.03.2012

The largest meteorites fall in the history of the Earth and formed at the point of impact craters 


More than 2 billion years ago 
Vredefort - impact crater is 120 kilometers from Johannesburg, South Africa. Diameter of the crater was 250-300 km, making it the largest in the world (not counting the unexplored probable diameter of the Wilkes Land crater 500 kilometers in the Antarctic). 

An asteroid collided with Earth...

 

The general concept Briefly
The earthquake - tremors and vibrations of the earth's surface due to natural causes (mainly by tectonic processes), or artificial processes (explosions, the filling of reservoirs, underground cavities collapse of mine workings). Small bumps can also be caused by the rise of the lava during volcanic eruptions .. 

...

 

Meteorite - a solid body of cosmic origin, that on the surface of the Earth. Most meteorites are found from the weight of a few grams to several kilograms. The largest of the meteorites found - Goba. Its weight is estimated to have amounted to about 60 tons Scientists believe that a day on Earth falls 5-6 tons of meteorites, or 2000 tons per year. 

By April 2010 were more than 1087 meteorites falling to Earth's atmosphere or found on the surface of...

 

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