Some Mexican Meteorites’ Age: from the Origin of Solar System until Their Arrive at the Lab
Keywords:
meteorites, meteoriticist, Solar System, meteorites’ ageAbstract
Meteorites are rocks that originated in the early stages of the Solar System and represent either fragments of asteroids that did not become a full planet or remains of a differentiated planet. The importance of studying them is that they are one of the main evidences to determine the geochemical composition and history of formation and evolution of planets, particularly the inner or terrestrial planets. There are two main types of meteorites, stony and metallic; each representing a specific region of a planetary body. The story of a meteorite can be eventful because it can be transformed by several processes during its more than 4,500 million years. These processes can be accretion, weathering, collisions, partial melting, metamorphism, fall into Earth surface to end with their finding. Furthermore, the meteorites show that in other planets magmatic processes occurred with mechanisms similar to those in Earth. In this work we show how we can study the history of each meteorite using as example some Mexican meteorites. We will show that chemical elements and isotopes and their ratios are the clue to unravel this story.
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