Mojave Crater provides more information on Meteorite Impact on the Red Planet
The novel study throws light on the fact that meteorites on Mars originated from the cosmic impacts about five million years ago. Researchers cited that the 34-mile Mojave crater, 60 kilometers in diameter and lies near equator of Mars, on the Red Planet is the source of Martian meteorites.
On analyzing Yamato 000593 (Y000593), a 30 pound rock from Mars, researchers found presence of tiny tunnels which reveals for existence of water channels and possibly life on the Red Planet many years back. Meteorite impacts which took place on Mars many years ago have travelled million of miles and landed on Earth. Researchers found three categories of Mars meteorite on earth namely shergottites, nakhlites, and chassignites (SNC) meteorites.
With the help of crater counting technique, researchers from University of Oslo have revealed that these meteorites were ejected from the Mojave crater about five million years ago.
Researchers said that their crater counting technique has helped them in understanding the Martian surface and early history of the planet. On comparing mineral composition of Mojave crater with minerals of three shergottites and a non-SNC Maertain meteorite, researchers found similarities in mineral composition in the wall outcrops of the crater and the rocks.
Audrey Bouvier, an isotopic geochemist at Western University in Ontario, Canada, said that the findings could have significant implications in interpreting the geochemical data of Mars. Bouvier added that it would also help researchers in understanding early evolution of the planet like its formation, cooling, and the loss of its magnetic field.