Mars is alive: a stream of molten magma was found on the Red Planet
Miscellaneous / / April 03, 2023
It is able to heat reservoirs under the surface of the planet, where there may be life.
Mars has always been considered a dead planet - both outside and inside. The absence of tectonic movements and the global magnetic field made us think that the planet is entirely composed of solid, immovable rock. However, new observations have revealed significant gaps in understanding the geology of this planet.
In one of the fresh research Planetary geophysicists Adrian Broke and Jeffrey Andrews-Hanna of the University of Arizona have stated that under a wide plain called Elysium Planitia, there is a colossal mantle plume or plume 4000 kilometers wide, which can push molten magma to the surface.
This version of geophysics came after the analysis of all the topographic, gravimetric, geological and seismic data of Mars. They made it possible to find a suitable activity model - the mantle plume matched all the data.
The plume must be at least 3500 kilometers across and have a temperature of 95-285 degrees higher than that of the crust. And the crust itself in the plume zone can be about 10 km thick.
The central part of this flow should be located in the middle of the Cerberus Fossae furrows, where the Mars InSight probe recorded marsquakes many times.
If these data can be confirmed, then Mars will become the third planet in the solar system with mantle plume activity. The first two are Earth and Venus.
In addition, the existence of magma flows can be fraught with many new incredible discoveries. For example, such internal heating of the planet could save the lakes under the Martian surface from freezing. And this is of great importance for the search for Martian life - microbes that can be hidden in bodies of water, existing their quiet lives away from prying eyes.
A plume under Elysium Planitia also indicates that surface volcanic flows and seismic activity are not isolated events, but are part of a long-lived, actively maintained regional system with implications for the longevity and astrobiological potential of the underground habitable environment.
Adrian Broke and Geoffrey Andrews-Hanna
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