2021-11-28

Scientists use the noise around Mars to map its underground

By yqqlm yqqlm

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8d51d417b2992ed - Scientists use the noise around Mars to map its underground

more precisely, the researchers analyzed the ambient noise collected by the seismograph installed on insight lander (in the absence of earthquakes). On earth, this environmental seismic noise is generated by the ocean, human activities and wind, but there is only the last kind on Mars. The Swiss Seismological Bureau (SED) and the Federal Institute of technology in Zurich regularly analyze the data collected by seismometers as part of the Mars seismic service. In the past few years, sed has been able to analyze environmental noise data and develop methods to define the geological structure of the earth. These are techniques for insight data

according to the data collected by the tool, the top 3M of insight landing site is composed of sand, and the next 20m is loose material, especially volcanic rock cracked by meteorite impact. Below are lava flows divided by sediments formed when the earth experiences cold and dry conditions. The researchers believe that the lava flow at the top was deposited about 1.7 billion years ago, but the deepest lava flow was 3.6 billion years ago, when there was much more volcanic activity on earth. It is reverse deposited

it is understood that the technology used by people to investigate planets has been proved to be effective on Mars. Other methods for understanding the earth may also provide us with more information about the red planet, because one day it may become the second home of mankind