Mars meteorites

MOHAMED NAJIB SAAAD

4 Jun, 2017

Mars meteorites

Mars meteorites

Over the course of centuries, many meteorites from Mars landed on Earth, some weighing 18 kilograms. These meteorites have for decades been involved in detecting the composition of Mars soil and have led scientists to predict the existence of an ancient life that arose on the surface of Mars millions of years ago. These discoveries have prompted US and European space agencies to adopt huge projects of spacecraft orbiting the planet and others landing on its surface to explore these Life and the search for its effects.

The Martian meteorite is a rock of Mars crust rocks. Was blown from its surface as a result of the exposure of the planet to the shock of an asteroid or a comet and then fell on the surface of the earth. Of the 53,000 meteorites discovered on the surface of the Earth, only 99 meteorites were classified as meteorites. The meteorite is classified as merica by matching the composition of radioactive elements and isotopes to the composition of rocks and the atmosphere on Mars detected by space vehicles. [1]

In the 1980s it was clear that the group of meteorites SNC, representing the three meteorites of the famous Sherguti, Palm and Chasini is very different from the rest of the meteorites in their composition. These differences in the age of small composition and the presence of different radioactive isotopes of the element of oxygen and some similarity between the chemical composition and the composition of some of the Martian rocks Which was revealed by the Viking spacecraft. In 2000 a study confirmed the existence of 14 meteorites from Mars and confirmed that the probability they were not from Mars was very small

Mars meteorites are classified into 3 sections of the shergotites - such as the meteorite Cherguti-shergotty

The Shergut

About three-quarters of the meteorites can be classified as shirgots. This name is named for its similarity with the meteorite Scherguti discovered in 1865 in the city of Shirgati, India

It is about 180 million years old and is a small age for most of the rocks on the surface of Mars. Some scientists have suggested that it is older, but this is still under study.

The Palm

There are 13 meteorites of the most important palm nectar is the palm palm itself, which was discovered in the palm village near the city of Alexandria in Egypt in 1911. Formed from the rocks Almajma basiltic since 1.3 billion years. It consists of olefin and oujite rocks. By comparing their ages with the date of the creation of the machete craters on Mars, scientists concluded that they formed in one of the large volcanoes on the surface of Mars.

Studies have shown that the nectar through which water flowed 620 million years ago, and that it was driven from Mars about 11 million years ago because of the shock of Mars from an asteroid, and it began to fall on Earth 10 thousand years ago.

Alshasinat

The most important of which was the Nasek Chasini, which fell in the city of Chassene, France in 1815. There is one other meteorite from the family of the Chassenites discovered in Morocco in 2000. It was classified from this family because it contains radioactive oxygen isotopes and the chemical composition of the materials as in the meteorite Chasini