Scientists at Brown University in the United States have found evidence of explosive volcanic eruptions on the red planet, which can show a large amount of water inside Mars during the initial phase of Mars.
This study, published in the journal Geology, can help scientists reconstruct the chronology of volcanic activity and environmental conditions on Mars.
Christopher Kremer, a researcher and graduate student at Brown University, said, "Identifying the importance of volcanic eruption on Mars is necessary to understand the water balance of Mars magma, the abundance of groundwater, and the thickness of the atmosphere.
Volcanic eruptions occur when gases such as water vapor dissolve in the underground magma. When the pressure of the dissolved gas is greater than the rock can withstand, it explodes and throws clouds of volcanic ash and lava into the air.
Scientists believe this type of eruption should occur very early in the history of Mars, where there was more water to mix with the magma.
The planet would dry up and the volcanic eruption would have disappeared and it would have entered a more erupting volcanic activity.
There is a lot of evidence for the level of cleavage found on the surface of Mars, but the evidence from the explosive early stage was not easily found in orbit tools, the university statement said.
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This new study analyzed a reservoir in an area called Nili Fossae. It is rich in olivine minerals common to the interior of the planet. Olivine shows signs of generalized change in contact with water that is much more disturbed than other sediments of olivine in Mars. Researchers believe that ash fall could be a cause of strange minerals in these sediments.
To closely observe the geology of the deposit, Kremer and his colleagues used high resolution images of NASA's Mars reconnaissance satellites. "We found that while the explanation for the volcanic eruption and the destruction of the volcanic ash represented all the correct squares, all the alternative ideas of what these sediments were are not in line with some of the important aspects we observed in the orbit "He said. .
However, teams do not have to rely solely on orbital data for long. NASA's Mars2020 probe is expected to land on the Ica crater.
"The interesting thing is that I will soon know whether I am right, so I may have some sense of anxiety, but it will be a stranger unless the ash falls," said Kremer.
Whatever the probe found, it is important to understand the evolution of the red planet.
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