Meteorite that fell in Morocco, Martian origin


12/10/2012

The meteorite, which fell in July 2011, near the Moroccan town of Tissint, consists of a small "capsule" containing the Martian air, the scientists suggest.

Today there are about 100 meteorites of Martian origin. Their value is great because they can indicate a variety of chemical and geological properties of Mars. The uniqueness of the meteorite Tissinta is that it is the fifth Martian meteorite whose fall was observed from the Earth.

After studying the chemical composition of the rocks of this meteorite, Moroccan scientists have found fragments of glass, fragments of olivine, pyroxene, and a host of other volcanic rocks typical of the Martian meteorites, which are a group of shergottitov. The meteorite broke away from the red planet at the same time and in the same place as the Antarctic meteorite EETA79001, which fell in January 1980 to the Earth.

Scientists have found the air bubbles inside the solidified glass. As the results of the analysis, the ratio of the isotopes of nitrogen and argon contained in the bubbles inside the glass corresponds to parameters of the atmosphere contained in the air samples that were taken out of the atmosphere of the Red Planet U.S. probe "Viking".

The glass elements in the meteorite have an unusual chemical composition. They have a very high content of light rare earth elements: lanthanum, cerium.

By all likelihood, penetrated the soil through the cracks of the rocks with streams of water that existed on Mars in ancient times. Fragments of "swimming" in the glass while at a time when Mars meteorite fell, knocking out a piece of Martian rock space.


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